Improved GoTool

- refactored some magic numbers

Makefile

@@ -13,6 +13,15 @@ get_code_gen:
 gen_prot:
 	./alox.protogen -i prot.json -o main/uart
 
+switch_to_s3:
+	idf.py set-target esp32s3
+	cp sdkconfig.s3 sdkconfig
+	idf.py build
+
+switch_to_c3:
+	idf.py set-target esp32c3
+	cp sdkconfig.c3 sdkconfig
+	idf.py build
 
 buildIdf:
 	idf.py build 
@@ -20,9 +29,32 @@ buildIdf:
 flashMini:
 	idf.py flash -p /dev/ttyACM0 
 
+flashMini2:
+	idf.py flash -p /dev/ttyACM1
+
+flashMini3:
+	idf.py flash -p /dev/ttyACM2
+
+flashCluster:
+	idf.py flash -p /dev/ttyACM1
+	idf.py flash -p /dev/ttyACM2
+	idf.py flash -p /dev/ttyACM3
+	idf.py flash -p /dev/ttyACM4
+	idf.py flash -p /dev/ttyACM5
+	idf.py flash -p /dev/ttyACM6
+	idf.py flash -p /dev/ttyACM7
+	idf.py flash -p /dev/ttyACM8
+
+
 monitorMini:
 	idf.py monitor -p /dev/ttyACM0 
 
+monitorMini1:
+	idf.py monitor -p /dev/ttyACM1 
+
+monitorMini2:
+	idf.py monitor -p /dev/ttyACM2 
+
 flash0:
 	idf.py flash -p /dev/ttyUSB0
 
@@ -40,3 +72,6 @@ monitor1:
 
 monitor2:
 	idf.py monitor -p /dev/ttyUSB2
+
+flash_second_ota:
+	parttool.py --port /dev/ttyACM0 write_partition --partition-name="ota_1" --input build/espAlox.bin

goTool/api/frontend.go

@@ -0,0 +1,55 @@
+package api
+
+const (
+	TopicFrontendCmd = "front:cmd"
+)
+
+const (
+	CmdUpdateValue = "update_value"
+	CmdInitState   = "init_state"
+	CmdConnect     = "connect"
+	CmdDisconnect  = "disconnect"
+	CmdSendMessage = "send"
+	CmdRX          = "uart_rx"
+	CmdTX          = "uart_tx"
+)
+
+var MessageReceiveRegistry = map[string]func() any{
+	CmdConnect:     func() any { return &WsUartConnect{} },
+	CmdDisconnect:  func() any { return &WsUartDisconnect{} },
+	CmdSendMessage: func() any { return &WsUartSendMessage{} },
+}
+
+type WsMessage struct {
+	Cmd     string `json:"cmd"`
+	Payload []byte `json:"payload,omitempty"`
+}
+
+type SystemState struct {
+	Adapters         []string `json:"adapters"`
+	SelectedAdapter  string   `json:"selected_adapter"`
+	Baudrates        string   `json:"baudrates"`
+	SelectedBaudrate string   `json:"selected_baudrate"`
+	UartConnected    bool     `json:"uart_connected"`
+}
+
+type WsUartConnect struct {
+	SelectedAdapter string `json:"selected_adapter"`
+	Baudrate        int    `json:"baudrate"`
+}
+
+type WsUartDisconnect struct {
+}
+
+type WsUartSendMessage struct {
+	MsgId byte   `json:"msg_id"`
+	Data  []byte `json:"data"`
+}
+
+type WsUartRX struct {
+	Data []byte `json:"data"`
+}
+
+type WsUartTX struct {
+	Data []byte `json:"data"`
+}

goTool/api/uart.go

@@ -0,0 +1,110 @@
+package api
+
+// Topics
+const (
+	TopicUARTRx     = "uart:rx"
+	TopicUARTTx     = "uart:tx"
+	TopicUARTError  = "uart:error"
+	TopicUartAction = "uart:action"
+
+	TopicOTA = "ota"
+)
+
+type Frame struct {
+	Time uint64
+	ID   byte
+	Data []byte
+}
+
+const (
+	CmdEcho        byte = 0x01
+	CmdVersion     byte = 0x02
+	CmdClientInfo  byte = 0x03
+	CmdClientInput byte = 0x04
+
+	CmdOtaStart       byte = 0x10
+	CmdOtaPayload     byte = 0x11
+	CmdOtaEnd         byte = 0x12
+	CmdOtaStatus      byte = 0x13
+	CmdOtaStartEspNow byte = 0x14
+)
+
+const (
+	ClientCountOffset = 1
+
+	// Payload Sizes
+	PayloadVersionSize     = 10
+	PayloadClientInfoSize  = 19
+	PayloadClientInputSize = 13
+)
+
+type PayloadVersion struct {
+	Version   uint16
+	Buildhash [7]uint8
+}
+
+type PayloadClientInfo struct {
+	ClientID           uint8
+	IsAvailable        uint8
+	SlotIsUsed         uint8
+	MACAddr            [6]uint8
+	LastPing           uint32
+	LastSuccessfulPing uint32
+	Version            uint16
+}
+
+type PayloadClientInput struct {
+	ClientID  byte
+	X         float32
+	Y         float32
+	InputMask uint32
+}
+
+type PayloadOtaStatus struct {
+	SequenzCounter uint16
+	WriteIndex     uint16
+	Data           []byte
+}
+
+type PayloadOtaStart struct {
+	Data     []byte
+	Parition byte
+	Error    byte
+}
+
+type PayloadOtaEnd struct {
+	Data []byte
+}
+
+type PayloadOtaPayload struct {
+	SequenzCounter uint16
+	WriteIndex     uint16
+	Data           []byte
+	Error          byte
+}
+
+type PayloadOtaStartEspNow struct {
+	Data []byte
+}
+
+type ActionUartConnect struct {
+	Adapter  string
+	Baudrate int
+}
+
+type ActionUartConnected struct {
+	Adapter  string
+	Baudrate int
+	Error    error
+}
+
+type ActionUartDisconnect struct {
+}
+
+type ActionUartDisconnected struct {
+}
+
+type ActionUartSendMessage struct {
+	MsgId byte
+	Data  []byte
+}

goTool/config.go

@@ -0,0 +1,8 @@
+package main
+
+type Config struct {
+	Port     int
+	Host     string
+	UartPort string
+	Baudrate int
+}

goTool/eventbus/bus.go

@@ -0,0 +1,64 @@
+package eventbus
+
+import (
+	"log"
+	"sync"
+)
+
+type EventBus interface {
+	Subscribe(topic string) chan any
+	Publish(topic string, data any)
+	Unsubscribe(topic string, ch chan any)
+}
+
+type EBus struct {
+	mu     sync.RWMutex
+	topics map[string][]chan any
+}
+
+func New() *EBus {
+	return &EBus{
+		mu:     sync.RWMutex{},
+		topics: map[string][]chan any{},
+	}
+}
+
+func (eb *EBus) Subscribe(topic string) chan any {
+	eb.mu.Lock()
+	defer eb.mu.Unlock()
+
+	ch := make(chan any, 20)
+	eb.topics[topic] = append(eb.topics[topic], ch)
+	return ch
+}
+
+func (eb *EBus) Publish(topic string, data any) {
+	eb.mu.RLock()
+	defer eb.mu.RUnlock()
+	for _, ch := range eb.topics[topic] {
+		select {
+		case ch <- data:
+		default:
+			log.Printf("[Event Bus]: Could not pass Message %v to %v channel full", data, topic)
+		}
+	}
+}
+
+func (eb *EBus) Unsubscribe(topic string, c chan any) {
+	eb.mu.Lock()
+	defer eb.mu.Unlock()
+
+	channels, ok := eb.topics[topic]
+	if !ok {
+		return
+	}
+
+	for i, ch := range channels {
+		if ch != c {
+			eb.topics[topic] = append(channels[:i], channels[i+1:]...) // example: 5 channels max i=3 channels[:3] (0,1,2) + channels[3+1:] (4,5)
+
+			close(ch)
+			return
+		}
+	}
+}

goTool/frontend/server.go

@@ -0,0 +1,175 @@
+package frontend
+
+import (
+	"context"
+	"embed"
+	"encoding/json"
+	"io/fs"
+	"log"
+	"net/http"
+	"time"
+
+	"alox.tool/api"
+	"alox.tool/eventbus"
+	"github.com/gorilla/websocket"
+)
+
+//go:embed www
+var staticFiles embed.FS
+
+var upgrader = websocket.Upgrader{}
+
+type FServer struct {
+	bus eventbus.EventBus
+	mux *http.ServeMux
+}
+
+func New(bus eventbus.EventBus) *FServer {
+	fsrv := &FServer{
+		bus: bus,
+		mux: http.NewServeMux(),
+	}
+	fsrv.routes()
+	return fsrv
+}
+
+func (fsrv *FServer) routes() {
+	// Static files from the Embed-FS
+	// remove "www" prefix, so index.html is reachable over /
+	root, _ := fs.Sub(staticFiles, "www")
+	fsrv.mux.Handle("/", http.FileServer(http.FS(root)))
+
+	fsrv.mux.HandleFunc("/ws", fsrv.handleWS)
+}
+
+func (fs *FServer) handleWS(w http.ResponseWriter, r *http.Request) {
+	conn, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		log.Printf("Upgrade error: %v", err)
+		return
+	}
+	defer conn.Close()
+
+	// Context nutzen, um Goroutinen zu stoppen, wenn die Verbindung abreißt
+	ctx, cancel := context.WithCancel(r.Context())
+	defer cancel()
+
+	// WRITER: Send Events to Browser
+	go fs.HandleAppEvents(ctx, conn)
+
+	// READER: Commands from Browser
+	// This Function is Blocking
+	fs.GetFrontendEvents(ctx, conn)
+}
+
+func (fs *FServer) Start(addr string) error {
+	server := &http.Server{
+		Addr:         addr,
+		Handler:      fs.mux,
+		ReadTimeout:  5 * time.Second,
+		WriteTimeout: 10 * time.Second,
+	}
+
+	ctx, cancle := context.WithCancel(context.Background())
+	defer cancle()
+
+	go fs.HandleFrontendEvents(ctx)
+
+	log.Printf("Frontend Server gestartet auf %s", addr)
+	return server.ListenAndServe()
+}
+
+func (fs *FServer) HandleAppEvents(ctx context.Context, conn *websocket.Conn) error {
+	// Kanäle für die Hardware-Events abonnieren
+	rxChan := fs.bus.Subscribe(api.TopicUARTRx)
+	txChan := fs.bus.Subscribe(api.TopicUARTTx)
+	UartActions := fs.bus.Subscribe(api.TopicUartAction)
+
+	for {
+		select {
+		case <-ctx.Done():
+			return nil
+		case f := <-rxChan:
+			if err := conn.WriteJSON(map[string]any{"type": "rx", "frame": f}); err != nil {
+				return nil
+			}
+		case f := <-txChan:
+			if err := conn.WriteJSON(map[string]any{"type": "tx", "frame": f}); err != nil {
+				return nil
+			}
+		case msgT := <-UartActions:
+			switch msg := msgT.(type) {
+			case api.ActionUartConnected:
+				// TODO: nicht hier die daten nachhaltig speichern damit sie ans frontend gesendet werden können
+				// TODO: das muss irgendwo central passieren nicht für jeden client
+				if msg.Error != nil {
+				}
+				continue
+			case api.ActionUartDisconnected:
+				continue
+			}
+		}
+	}
+}
+
+func (fs *FServer) GetFrontendEvents(ctx context.Context, conn *websocket.Conn) error {
+	for {
+		select {
+		case <-ctx.Done():
+			return nil
+		default:
+			var cmd api.WsMessage
+			if err := conn.ReadJSON(&cmd); err != nil {
+				log.Printf("WS Read Error: %v", err)
+				return err
+			}
+
+			val, ok := api.MessageReceiveRegistry[cmd.Cmd]
+			if !ok {
+				log.Printf("No Message Type mapped to %v", cmd.Cmd)
+				continue
+			}
+			valM := val()
+
+			err := json.Unmarshal(cmd.Payload, valM)
+			if err != nil {
+				log.Printf("Could not Unmarshal payload %v", cmd.Payload)
+			}
+
+			fs.bus.Publish(api.TopicFrontendCmd, valM)
+			log.Printf("Browser Action: %s auf with %v", cmd.Cmd, cmd.Payload)
+		}
+	}
+}
+
+func (fs *FServer) HandleFrontendEvents(ctx context.Context) error {
+	fChan := fs.bus.Subscribe(api.TopicFrontendCmd)
+
+	for {
+		select {
+		case <-ctx.Done():
+			return nil
+		case msg := <-fChan:
+			switch msgT := msg.(type) {
+			case api.WsUartSendMessage:
+				log.Printf("Sending Uart Data % X", msgT.Data)
+				fs.bus.Publish(api.TopicUartAction, api.ActionUartSendMessage{
+					MsgId: msgT.MsgId,
+					Data:  msgT.Data,
+				})
+				continue
+			case api.WsUartConnect:
+				log.Printf("Connect with %s : %d", msgT.SelectedAdapter, msgT.Baudrate)
+				fs.bus.Publish(api.TopicUartAction, api.ActionUartConnect{
+					Adapter:  msgT.SelectedAdapter,
+					Baudrate: msgT.Baudrate,
+				})
+				continue
+			case api.WsUartDisconnect:
+				log.Printf("Disconnect from Uart Adapter")
+				fs.bus.Publish(api.TopicUartAction, api.ActionUartDisconnect{})
+				continue
+			}
+		}
+	}
+}

goTool/frontend/www/component.tmpl

@@ -0,0 +1,32 @@
+<div x-data="windowBox('window_id' ,100, 100)"
+     @mousemove.window="onDrag" 
+     @mouseup.window="stopDrag"
+     @mousedown="focus"
+     class="card shadow-lg position-absolute"
+     :class="{ 'w-100 h-100 m-0 shadow-none': fullscreen }"
+     :style="`left: ${pos.x}px; top: ${pos.y}px; z-index: ${zIndex}; width: ${fullscreen ? '100vw' : '400px'};`"
+     x-cloak>
+
+    <div class="card-header bg-dark text-white d-flex justify-content-between align-items-center drag-handle"
+         @mousedown="startDrag" @dblclick="toggleFullscreen">
+        <h6 class="mb-0">CAN Interface</h6>
+        
+        <div class="d-flex align-items-center gap-1">
+            <span class="badge me-1" :class="socket.readyState === 1 ? 'bg-success' : 'bg-danger'">WS</span>
+            
+            <button class="btn btn-sm btn-outline-light py-0 px-2" @click="toggleFullscreen">
+                <span>▢</span>
+            </button>
+            
+            <button class="btn btn-sm btn-outline-light py-0 px-2" @click="minimized = !minimized">
+                <span x-text="minimized ? '+' : '−'"></span>
+            </button>
+        </div>
+    </div>
+
+    <div x-show="!minimized" class="flex-grow-1 overflow-auto">
+        <div class="card-body">
+		<p>HIER DER INHALT DER COMPONENT</p>
+        </div>
+    </div>
+</div>

goTool/frontend/www/index.html

@@ -0,0 +1,241 @@
+<!doctype html>
+<html>
+  <head>
+    <link href="bootstrap.min.css" rel="stylesheet" />
+    <script src="bootstrap.bundle.min.js"></script>
+    <script defer src="windows.js"></script>
+    <script defer src="alpinejs.min.js"></script>
+
+    <style>
+      [x-cloak] {
+        display: none !important;
+      }
+
+      body {
+        background-color: #f8f9fa;
+        background-image:
+          linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
+          linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px);
+        background-size: 20px 20px;
+        height: 100vh;
+        margin: 0;
+        padding-top: 56px; /* Space for navbar */
+        overflow: hidden;
+      }
+
+      .drag-handle {
+        cursor: move;
+      }
+      .card[style*="cursor: move"] {
+        transition: none;
+      }
+
+      .navbar {
+        z-index: 2000; /* Above windows */
+      }
+
+      .ws-indicator {
+        width: 12px;
+        height: 12px;
+        border: 1px solid rgba(255, 255, 255, 0.3);
+        transition: all 0.3s ease;
+      }
+      .glow-success {
+        box-shadow: 0 0 10px #198754;
+      }
+      .glow-danger {
+        box-shadow: 0 0 10px #dc3545;
+      }
+    </style>
+
+    <script>
+      document.addEventListener("alpine:init", () => {
+        Alpine.store("sys", {
+          ws_connected: false,
+          adapters: ["/dev/ttyUSB0"],
+          selected_adapter: "",
+          baudrates: ["115200", "916000"],
+          selected_baudrate: "",
+          uart_connected: false,
+        });
+      });
+    </script>
+
+    <script>
+      let socket;
+
+      function connectWS() {
+        socket = new WebSocket("ws://" + window.location.host + "/ws");
+
+        socket.onopen = () => {
+          console.log("[open] Connection established");
+          Alpine.store("sys").ws_connected = true;
+        };
+
+        socket.onmessage = (event) => {
+          try {
+            let mes = JSON.parse(event.data);
+            if (mes && mes.cmd === "value") {
+              Alpine.store(mes.name, mes.value);
+            }
+          } catch (e) {
+            console.log("Invalid JSON:", event.data);
+          }
+        };
+
+        socket.onclose = () => {
+          console.log("[close] Connection died");
+          Alpine.store("sys").ws_connected = false;
+          setTimeout(connectWS, 2000);
+        };
+
+        socket.onerror = (error) => {
+          console.log("[error]");
+          socket.close();
+        };
+      }
+
+      connectWS();
+    </script>
+  </head>
+
+  <body x-data>
+    <!-- Top Navbar -->
+    <nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top shadow">
+      <div class="container-fluid">
+        <a class="navbar-brand fw-bold" href="#">
+          <span class="text-primary">Alox</span> Debug Tool
+        </a>
+
+        <div class="d-flex align-items-center gap-2">
+          <span class="text-light small opacity-75">Websocket:</span>
+          <div
+            class="rounded-circle ws-indicator"
+            :class="$store.sys.ws_connected ? 'bg-success glow-success' : 'bg-danger glow-danger'"
+          ></div>
+        </div>
+      </div>
+    </nav>
+
+    <!-- UART Configuration Window -->
+    <yet-window
+      id="uart_config"
+      title="UART Configuration"
+      x="50"
+      y="80"
+      width="400px"
+    >
+      <label class="form-label small fw-bold text-uppercase text-muted"
+        >Interface</label
+      >
+      <div
+        class="input-group mb-3"
+        x-data="{ open: false }"
+        @click.outside="open = false"
+      >
+        <button
+          class="btn btn-outline-secondary dropdown-toggle"
+          type="button"
+          @click="open = !open"
+          :disabled="$store.sys.uart_connected"
+        >
+          Adapter
+        </button>
+        <ul class="dropdown-menu" :class="{ 'show': open }" x-show="open">
+          <template x-for="adapter in $store.sys.adapters">
+            <li>
+              <button
+                class="dropdown-item"
+                type="button"
+                x-text="adapter"
+                @click="$store.sys.selected_adapter = adapter; open = false"
+              ></button>
+            </li>
+          </template>
+        </ul>
+        <input
+          type="text"
+          class="form-control bg-light"
+          readonly
+          :value="$store.sys.selected_adapter || 'Select Interface...'"
+        />
+      </div>
+
+      <label class="form-label small fw-bold text-uppercase text-muted"
+        >Baudrate</label
+      >
+      <div
+        class="input-group mb-4"
+        x-data="{ open: false }"
+        @click.outside="open = false"
+      >
+        <button
+          class="btn btn-outline-secondary dropdown-toggle"
+          type="button"
+          @click="open = !open"
+          :disabled="$store.sys.uart_connected"
+        >
+          Speed
+        </button>
+        <ul class="dropdown-menu" :class="{ 'show': open }" x-show="open">
+          <template x-for="rate in $store.sys.baudrates">
+            <li>
+              <button
+                class="dropdown-item"
+                type="button"
+                x-text="rate"
+                @click="$store.sys.selected_baudrate = rate; open = false"
+              ></button>
+            </li>
+          </template>
+        </ul>
+        <input
+          type="text"
+          class="form-control bg-light"
+          readonly
+          :value="$store.sys.selected_baudrate || 'Select Baudrate...'"
+        />
+      </div>
+
+      <div class="d-grid">
+        <button
+          x-show="!$store.sys.uart_connected"
+          class="btn btn-primary btn-lg"
+          type="button"
+          :disabled="!$store.sys.selected_adapter || !$store.sys.selected_baudrate"
+          @click="socket.send(JSON.stringify({cmd: 'connect', adapter: $store.sys.selected_adapter, baudrate: parseInt($store.sys.selected_baudrate)}))"
+        >
+          Connect to UART
+        </button>
+        <button
+          x-show="$store.sys.uart_connected"
+          x-cloak
+          class="btn btn-danger btn-lg"
+          type="button"
+          @click="socket.send(JSON.stringify({cmd: 'disconnect'}))"
+        >
+          Disconnect
+        </button>
+      </div>
+    </yet-window>
+
+    <!-- UART Log Window -->
+    <yet-window
+      id="uart_log"
+      title="UART Log"
+      x="500"
+      y="80"
+      width="550px"
+      header-class="bg-primary text-white"
+    >
+      <div
+        class="bg-dark text-success font-monospace small p-2 rounded shadow-inner"
+        style="height: 400px; overflow-y: auto"
+      >
+        <div class="text-muted small mt-2">
+          // UART log data will appear here...
+        </div>
+      </div>
+    </yet-window>
+  </body>
+</html>

goTool/frontend/www/windows.js

@@ -0,0 +1,153 @@
+// windows.js
+
+document.addEventListener("alpine:init", () => {
+  // 1. Globaler Store for Window Managment
+  Alpine.store("Yet_WM", {
+    topZ: 1000,
+    getNewZ() {
+      return ++this.topZ;
+    },
+  });
+
+  Alpine.data("YetWindow", (id, initialX = 50, initialY = 50) => ({
+    id: id,
+    pos: { x: parseInt(initialX), y: parseInt(initialY) },
+    lastPos: { x: 0, y: 0 },
+    dragging: false,
+    minimized: false,
+    fullscreen: false,
+    zIndex: 1000,
+    offset: { x: 0, y: 0 },
+
+    init() {
+      // Lade gespeicherten Zustand (einheitlicher Key: yet_win_)
+      const saved = JSON.parse(localStorage.getItem(`yet_win_${this.id}`));
+      if (saved) {
+        this.pos = { x: saved.x, y: saved.y };
+        this.minimized = saved.min;
+      }
+      this.focus();
+      this.keepInBounds();
+    },
+
+    focus() {
+      this.zIndex = Alpine.store("Yet_WM").getNewZ();
+    },
+
+    startDrag(e) {
+      if (e.target.closest("button") || this.fullscreen) return;
+      
+      // Verhindert Text-Markierung während des Verschiebens
+      e.preventDefault();
+      
+      this.focus();
+      this.dragging = true;
+      this.offset.x = e.clientX - this.pos.x;
+      this.offset.y = e.clientY - this.pos.y;
+    },
+
+    onDrag(e) {
+      if (!this.dragging) return;
+      let newX = e.clientX - this.offset.x;
+      let newY = e.clientY - this.offset.y;
+
+      const margin = 20;
+      this.pos.x = Math.max(margin - 350, Math.min(newX, window.innerWidth - 50));
+      this.pos.y = Math.max(0, Math.min(newY, window.innerHeight - 40));
+    },
+
+    stopDrag() {
+      if (this.dragging) {
+        this.dragging = false;
+        this.save();
+      }
+    },
+
+    toggleMinimize() {
+      this.minimized = !this.minimized;
+      this.save();
+    },
+
+    toggleFullscreen() {
+      if (!this.fullscreen) {
+        this.lastPos = { ...this.pos };
+        this.pos = { x: 0, y: 0 };
+        this.fullscreen = true;
+      } else {
+        this.pos = { ...this.lastPos };
+        this.fullscreen = false;
+      }
+      this.focus();
+    },
+
+    save() {
+      localStorage.setItem(
+        `yet_win_${this.id}`,
+        JSON.stringify({
+          x: this.pos.x,
+          y: this.pos.y,
+          min: this.minimized,
+        })
+      );
+    },
+
+    keepInBounds() {
+      if (this.pos.x > window.innerWidth) this.pos.x = 50;
+      if (this.pos.y > window.innerHeight) this.pos.y = 50;
+    },
+  }));
+});
+
+// Definition der Web Component
+class YetWindowElement extends HTMLElement {
+  connectedCallback() {
+    const id = this.getAttribute("id") || "win_" + Math.random().toString(36).substr(2, 9);
+    const title = this.getAttribute("title") || "Window";
+    const x = this.getAttribute("x") || "50";
+    const y = this.getAttribute("y") || "50";
+    const width = this.getAttribute("width") || "450px";
+    const headerClass = this.getAttribute("header-class") || "bg-dark text-white";
+
+    const content = this.innerHTML;
+
+    this.innerHTML = `
+      <div
+        x-data="YetWindow('${id}', ${x}, ${y})"
+        @mousemove.window="onDrag"
+        @mouseup.window="stopDrag"
+        @mousedown="focus"
+        class="card shadow-lg position-absolute"
+        :class="{ 'w-100 h-100 m-0 shadow-none': fullscreen }"
+        :style="\`left: \${pos.x}px; top: \${pos.y}px; z-index: \${zIndex}; width: \${fullscreen ? '100vw' : '${width}'}; user-select: \${dragging ? 'none' : 'auto'};\`"
+        x-cloak
+      >
+        <div
+          class="card-header d-flex justify-content-between align-items-center drag-handle ${headerClass}"
+          @mousedown="startDrag"
+          @dblclick="toggleFullscreen"
+          style="user-select: none;"
+        >
+          <h6 class="mb-0">${title}</h6>
+
+          <div class="d-flex align-items-center gap-1">
+            <button class="btn btn-sm btn-outline-light py-0 px-2" @click="toggleFullscreen">
+              <span>▢</span>
+            </button>
+
+            <button class="btn btn-sm btn-outline-light py-0 px-2" @click="toggleMinimize">
+              <span x-text="minimized ? '+' : '−'"></span>
+            </button>
+          </div>
+        </div>
+
+        <div x-show="!minimized" class="flex-grow-1 overflow-auto">
+          <div class="card-body">
+            ${content}
+          </div>
+        </div>
+      </div>
+    `;
+  }
+}
+
+customElements.define("yet-window", YetWindowElement);

goTool/go.mod

@@ -0,0 +1,25 @@
+module alox.tool
+
+go 1.24.5
+
+require (
+	github.com/gorilla/websocket v1.5.3
+	github.com/pterm/pterm v0.12.81
+	go.bug.st/serial v1.6.4
+)
+
+require (
+	atomicgo.dev/cursor v0.2.0 // indirect
+	atomicgo.dev/keyboard v0.2.9 // indirect
+	atomicgo.dev/schedule v0.1.0 // indirect
+	github.com/containerd/console v1.0.5 // indirect
+	github.com/creack/goselect v0.1.2 // indirect
+	github.com/gookit/color v1.5.4 // indirect
+	github.com/lithammer/fuzzysearch v1.1.8 // indirect
+	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/term v0.32.0 // indirect
+	golang.org/x/text v0.26.0 // indirect
+)

goTool/go.sum

@@ -0,0 +1,126 @@
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+atomicgo.dev/cursor v0.2.0 h1:H6XN5alUJ52FZZUkI7AlJbUc1aW38GWZalpYRPpoPOw=
+atomicgo.dev/cursor v0.2.0/go.mod h1:Lr4ZJB3U7DfPPOkbH7/6TOtJ4vFGHlgj1nc+n900IpU=
+atomicgo.dev/keyboard v0.2.9 h1:tOsIid3nlPLZ3lwgG8KZMp/SFmr7P0ssEN5JUsm78K8=
+atomicgo.dev/keyboard v0.2.9/go.mod h1:BC4w9g00XkxH/f1HXhW2sXmJFOCWbKn9xrOunSFtExQ=
+atomicgo.dev/schedule v0.1.0 h1:nTthAbhZS5YZmgYbb2+DH8uQIZcTlIrd4eYr3UQxEjs=
+atomicgo.dev/schedule v0.1.0/go.mod h1:xeUa3oAkiuHYh8bKiQBRojqAMq3PXXbJujjb0hw8pEU=
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+github.com/MarvinJWendt/testza v0.4.2/go.mod h1:mSdhXiKH8sg/gQehJ63bINcCKp7RtYewEjXsvsVUPbE=
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+golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
+golang.org/x/term v0.32.0 h1:DR4lr0TjUs3epypdhTOkMmuF5CDFJ/8pOnbzMZPQ7bg=
+golang.org/x/term v0.32.0/go.mod h1:uZG1FhGx848Sqfsq4/DlJr3xGGsYMu/L5GW4abiaEPQ=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
+golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

goTool/main.go

@@ -0,0 +1,128 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"time"
+
+	"alox.tool/api"
+	"alox.tool/eventbus"
+	"alox.tool/frontend"
+	"alox.tool/state"
+	"alox.tool/testrunner"
+	"alox.tool/uart"
+)
+
+var (
+	Tests    bool
+	Baudrate uint
+)
+
+func main() {
+	flag.BoolVar(&Tests, "t", false, "Tests")
+	flag.UintVar(&Baudrate, "b", 921600, "Baudrate") // 115200
+
+	flag.Parse()
+
+	log.Printf("Starting with Params %v", Baudrate)
+
+	config := Config{
+		Port:     8000,
+		Host:     "0.0.0.0",
+		UartPort: "/dev/ttyUSB0",
+		Baudrate: int(Baudrate),
+	}
+	if Tests {
+		StartTests(config)
+		return
+	}
+	StartApp(config)
+}
+
+func StartTests(config Config) {
+	bus := eventbus.New()
+	com, err := uart.NewCom(bus)
+	if err != nil {
+		log.Printf("Could not Create COM %v", err)
+	}
+	err = com.Connect(config.UartPort, config.Baudrate)
+	if err != nil {
+		log.Printf("Could not Connect with Uart Device %v", err)
+	}
+	defer com.Close()
+
+	tr := testrunner.New(bus, com)
+
+	testTest := make(map[string]func() error)
+	testTest["Echo Test"] = tr.RunEchoTest
+	testTest["Version Test"] = tr.RunVersionTest
+	testTest["Info Test"] = tr.RunClientInfoTest
+	testTest["Input Test"] = tr.RunClientInputTest
+	testTest["Rebuild Network"] = tr.RebuildNetwork
+
+	tr.RunTestSet(testTest)
+}
+
+func StartApp(config Config) {
+	bus := eventbus.New()
+	com, err := uart.NewCom(bus)
+
+	ctx, cancle := context.WithCancel(context.Background())
+	defer cancle()
+
+	go com.EventbusHandler(ctx)
+
+	if err != nil {
+		log.Printf("Could not Create Com with Uart Device %v", err)
+		return
+	}
+	err = com.Connect(config.UartPort, config.Baudrate)
+	if err != nil {
+		log.Printf("Could not Connect with Uart Device %v", err)
+	}
+	defer com.Close()
+
+	update, err := os.ReadFile("../espAlox.bin")
+	if err != nil {
+		log.Printf("Could not read Update file %v", err)
+		return
+	}
+	updateSlices := SliceUpdate(update, 200)
+
+	oManager := NewOTAManager(bus, com, updateSlices)
+
+	espHandle := state.New()
+	espHandle.Start(ctx, bus)
+	oManager.StartUpdateHandler(ctx)
+
+	time.Sleep(time.Millisecond * 5)
+
+	//tr := testrunner.New(bus, com)
+	//tr.RunVersionTest()
+
+	time.Sleep(time.Millisecond * 5)
+
+	//com.Send(api.CmdEcho, make([]byte, 0))
+	//com.Send(api.CmdVersion, make([]byte, 0))
+	com.Send(api.CmdClientInfo, make([]byte, 0))
+	//com.Send(api.CmdClientInput, make([]byte, 0))
+
+	//com.Send(api.CmdOtaStart, make([]byte, 0))
+	//com.Send(api.CmdOtaStartEspNow, make([]byte, 0))
+
+	url := fmt.Sprintf("%s:%d", config.Host, config.Port)
+	fserver := frontend.New(bus)
+	fserver.Start(url)
+}
+
+func SliceUpdate(update []byte, maxlen int) [][]byte {
+	updateSlices := [][]byte{}
+	for i := 0; i < len(update); i += 200 {
+		end := min(i+200, len(update))
+		updateSlices = append(updateSlices, update[i:end])
+	}
+	return updateSlices
+}

goTool/ota.go

@@ -0,0 +1,136 @@
+package main
+
+import (
+	"context"
+	"log"
+	"time"
+
+	"alox.tool/api"
+	"alox.tool/eventbus"
+	"alox.tool/uart"
+)
+
+type OTAManager struct {
+	Bus          eventbus.EventBus
+	Com          *uart.Com
+	Update       [][]byte
+	CurrentSlice uint16
+	Partition    byte
+	StartTime    time.Time
+	EndTime      time.Time
+}
+
+func NewOTAManager(bus eventbus.EventBus, com *uart.Com, update [][]byte) OTAManager {
+	return OTAManager{
+		Bus:          bus,
+		Com:          com,
+		Update:       update,
+		CurrentSlice: 0,
+	}
+}
+
+func (om *OTAManager) StartUpdateHandler(ctx context.Context) {
+	RXC := om.Bus.Subscribe(api.TopicUARTRx)
+	defer om.Bus.Unsubscribe(api.TopicUARTRx, RXC)
+
+	go func() {
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case msg := <-RXC:
+				val, ok := msg.(api.Frame)
+				if !ok {
+					log.Printf("val is not type api.Frame its %T", val)
+					continue
+				}
+				log.Printf("[%d] Frame: %X, % X", val.Time, val.ID, val.Data)
+				om.processFrame(val)
+			}
+		}
+	}()
+}
+
+func (om *OTAManager) processFrame(val api.Frame) {
+	switch val.ID {
+	case api.CmdOtaStart:
+		msgT, err := uart.ParseFrameOtaStart(val)
+		if err != nil {
+			log.Printf("Could not Parse Client Input %v", err)
+			return
+		}
+
+		// Send First Payload
+		om.StartTime = time.Now()
+		om.Partition = msgT.Parition
+		err = om.Com.Send(api.CmdOtaPayload, om.Update[om.CurrentSlice])
+		if err != nil {
+			log.Printf("Error Sending Update Step!: %v", err)
+			return
+		}
+		om.CurrentSlice = om.CurrentSlice + 1
+		log.Printf("First Update Step %d", om.CurrentSlice)
+		log.Printf("%v", msgT)
+	case api.CmdOtaPayload:
+		msgT, err := uart.ParseFrameOtaPayload(val)
+		if err != nil {
+			log.Printf("Could not Parse Client Input %v", err)
+			return
+		}
+		// Send Next Payload until there is no more then send end package
+
+		log.Printf("msgT %v", msgT)
+
+		if msgT.Error != 0x00 {
+			log.Printf("Error in Sending Update! Check ESP Log")
+			return
+		}
+
+		log.Printf("NEXT PAYLOAD")
+		if om.CurrentSlice == uint16(len(om.Update)) {
+			log.Printf("LAST PAYLOAD SEND ENDING")
+			om.Com.Send(api.CmdOtaEnd, make([]byte, 1))
+			return
+		}
+		err = om.Com.Send(api.CmdOtaPayload, om.Update[om.CurrentSlice])
+		if err != nil {
+			log.Printf("Error Sending Update Step!: %v", err)
+			return
+		}
+		om.CurrentSlice = om.CurrentSlice + 1
+		log.Printf("UPDATE CURRENT SLICE %d/%d", om.CurrentSlice, len(om.Update))
+		log.Printf("UPDATE Part/WriteIndex %d/%d", msgT.SequenzCounter, msgT.WriteIndex)
+		log.Printf("Progress: %05.2f%%", (float32(om.CurrentSlice)/float32(len(om.Update)))*100)
+
+	case api.CmdOtaStatus:
+		v, err := uart.ParseFrameOtaStatus(val)
+		if err != nil {
+			log.Printf("Could not Parse Client Input %v", err)
+			return
+		}
+		log.Printf("%v", v)
+		// Update State Machine
+
+	case api.CmdOtaEnd:
+		msgT, err := uart.ParseFrameOtaEnd(val)
+		if err != nil {
+			log.Printf("Could not Parse Client Input %v", err)
+			return
+		}
+
+		// End bestätigung
+		om.EndTime = time.Now()
+		duration := om.EndTime.Sub(om.StartTime)
+		log.Printf("Partition %d Update done in %f.2s!", om.Partition, duration.Seconds())
+		log.Printf("%v", msgT)
+
+	case api.CmdOtaStartEspNow:
+		v, err := uart.ParseFrameOtaStartEspNow(val)
+		if err != nil {
+			log.Printf("Could not Parse Client Input %v", err)
+			return
+		}
+		//bus.Publish(api.TopicOTA, v)
+		log.Printf("%v", v)
+	}
+}

goTool/state/state.go

@@ -0,0 +1,186 @@
+package state
+
+import (
+	"context"
+	"log"
+	"sync"
+
+	"alox.tool/api"
+	"alox.tool/eventbus"
+	"alox.tool/uart"
+)
+
+type ESPStateHandler struct {
+	RWMutex sync.RWMutex
+	Master  MasterESP
+}
+
+type ESPVersion struct {
+	Version   uint16
+	Buildhash [7]byte
+}
+
+type BaseESP struct {
+	ClientId         byte
+	IsUpdating       bool
+	UpdateProgress   float32
+	Version          ESPVersion
+	RunningPartition int
+	MAC              [6]byte
+}
+
+type MasterESP struct {
+	BaseESP
+	Slaves map[byte]*SlaveESP
+}
+
+type SlaveESP struct {
+	BaseESP
+	SlotAvailable       bool
+	SlotUsed            bool
+	Bitmask             uint32
+	LageX               float32
+	LageY               float32
+	LastPing            uint32
+	LastSuccessfullPing uint32
+}
+
+func New() *ESPStateHandler {
+	return &ESPStateHandler{
+		RWMutex: sync.RWMutex{},
+		Master:  NewMasterESP(),
+	}
+}
+
+func NewMasterESP() MasterESP {
+	return MasterESP{
+		BaseESP: BaseESP{
+			ClientId:       0,
+			IsUpdating:     false,
+			UpdateProgress: 0,
+			Version: ESPVersion{
+				Version:   0,
+				Buildhash: [7]byte{},
+			},
+			RunningPartition: 0,
+			MAC:              [6]byte{},
+		},
+		Slaves: map[byte]*SlaveESP{},
+	}
+}
+
+func NewSlaveESP() *SlaveESP {
+	return &SlaveESP{
+		BaseESP: BaseESP{
+			ClientId:       0,
+			IsUpdating:     false,
+			UpdateProgress: 0,
+			Version: ESPVersion{
+				Version:   0,
+				Buildhash: [7]byte{},
+			},
+			RunningPartition: 0,
+			MAC:              [6]byte{},
+		},
+		SlotAvailable:       false,
+		SlotUsed:            false,
+		Bitmask:             0,
+		LageX:               0,
+		LageY:               0,
+		LastPing:            0,
+		LastSuccessfullPing: 0,
+	}
+}
+
+func (s *ESPStateHandler) Start(ctx context.Context, bus eventbus.EventBus) {
+	go func() {
+		RXC := bus.Subscribe(api.TopicUARTRx)
+		defer bus.Unsubscribe(api.TopicUARTRx, RXC)
+
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case msg := <-RXC:
+				val, ok := msg.(api.Frame)
+				if !ok {
+					log.Printf("val is not type api.Frame its %T", val)
+					continue
+				}
+				log.Printf("[%d] Frame: %X, % X", val.Time, val.ID, val.Data)
+				s.processFrame(val)
+			}
+		}
+	}()
+}
+
+func (s *ESPStateHandler) processFrame(val api.Frame) {
+	s.RWMutex.Lock()
+	defer s.RWMutex.Unlock()
+
+	switch val.ID {
+	case api.CmdEcho:
+		log.Printf("Echo %v", val)
+	case api.CmdVersion:
+		v, err := uart.ParseFrameVersion(val)
+		if err != nil {
+			log.Printf("Could not Parse Version %v", err)
+			return
+		}
+		log.Printf("Version Info %d %s", v.Version, v.Buildhash)
+
+		// Update State
+		s.Master.Version.Version = v.Version
+		s.Master.Version.Buildhash = v.Buildhash
+
+	case api.CmdClientInfo:
+		v, err := uart.ParseFrameClientInfo(val)
+		if err != nil {
+			log.Printf("Could not Parse Client Info %v", err)
+			return
+		}
+		for _, c := range v {
+			log.Printf("Client ID  %d", c.ClientID)
+			log.Printf("\tIsAvailable %d", c.IsAvailable)
+			log.Printf("\tLastPing %d", c.LastPing)
+			log.Printf("\tLastSuccessfulPing %d", c.LastSuccessfulPing)
+			log.Printf("\tSlotIsUsed %d", c.SlotIsUsed)
+			log.Printf("\tVersion %d", c.Version)
+			log.Printf("\tMACAddr % X", c.MACAddr)
+
+			_, ok := s.Master.Slaves[c.ClientID]
+			if !ok {
+				s.Master.Slaves[c.ClientID] = NewSlaveESP()
+			}
+
+			s.Master.Slaves[c.ClientID].SlotAvailable = c.IsAvailable != 0
+			s.Master.Slaves[c.ClientID].SlotUsed = c.SlotIsUsed != 0
+			s.Master.Slaves[c.ClientID].LastPing = c.LastPing
+			s.Master.Slaves[c.ClientID].LastSuccessfullPing = c.LastSuccessfulPing
+			s.Master.Slaves[c.ClientID].Version.Version = c.Version
+			s.Master.Slaves[c.ClientID].MAC = c.MACAddr
+		}
+
+	case api.CmdClientInput:
+		v, err := uart.ParseFrameClientInput(val)
+		if err != nil {
+			log.Printf("Could not Parse Client Input %v", err)
+			return
+		}
+		for _, c := range v {
+			log.Printf("Client ID  %d", c.ClientID)
+			log.Printf("\tX %f", c.X)
+			log.Printf("\tY %f", c.Y)
+			log.Printf("\tBitmask %08b", c.InputMask)
+
+			_, ok := s.Master.Slaves[c.ClientID]
+			if !ok {
+				s.Master.Slaves[c.ClientID] = NewSlaveESP()
+			}
+
+			s.Master.Slaves[c.ClientID].LageX = c.X
+			s.Master.Slaves[c.ClientID].LageY = c.Y
+			s.Master.Slaves[c.ClientID].Bitmask = c.InputMask
+		}
+	}
+}

goTool/testrunner/esptool.go

@@ -0,0 +1,18 @@
+package testrunner
+
+import (
+	"os/exec"
+)
+
+const (
+	ESPTOOLPATH = "/home/simon/.espressif/python_env/idf5.5_py3.14_env/bin/esptool.py"
+)
+
+func RestartESPOnPort(port string) error {
+	cmd := exec.Command(ESPTOOLPATH, "--port", port, "run")
+	err := cmd.Run()
+	if err != nil {
+		return err
+	}
+	return nil
+}

goTool/testrunner/runner.go

@@ -0,0 +1,82 @@
+package testrunner
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"time"
+
+	"alox.tool/api"
+	"alox.tool/eventbus"
+	"alox.tool/uart"
+)
+
+type TestRunner struct {
+	bus eventbus.EventBus
+	com *uart.Com
+}
+
+func New(bus eventbus.EventBus, com *uart.Com) *TestRunner {
+	return &TestRunner{
+		bus: bus,
+		com: com,
+	}
+}
+
+func (tr *TestRunner) RunTestSet(TSet map[string]func() error) {
+	null, _ := os.OpenFile(os.DevNull, os.O_WRONLY, 0)
+	defer null.Close()
+
+	// Backups der originalen Deskriptoren
+	oldStdout := os.Stdout
+	oldStderr := os.Stderr
+	oldLogOut := log.Writer()
+
+	for name, f := range TSet {
+
+		// 1. Output komplett abdrehen
+		os.Stdout = null
+		os.Stderr = null
+		log.SetOutput(io.Discard)
+
+		err := f()
+
+		// 2. Sofort wiederherstellen für das Log-Resultat
+		os.Stdout = oldStdout
+		os.Stderr = oldStderr
+		log.SetOutput(oldLogOut)
+
+		if err != nil {
+			log.Printf("[%s]: \t\tFailed: %v", name, err)
+			continue
+		}
+		log.Printf("[%s]: \t\tSucceeded", name)
+	}
+}
+
+func (tr *TestRunner) Expect(idToSend byte, payload []byte, expectedID byte, timeout time.Duration) (*api.Frame, error) {
+	rxChan := tr.bus.Subscribe(api.TopicUARTRx)
+	defer tr.bus.Unsubscribe(api.TopicUARTRx, rxChan)
+
+	if err := tr.com.Send(idToSend, payload); err != nil {
+		return nil, fmt.Errorf("send error: %w", err)
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return nil, fmt.Errorf("timeout waiting for ID 0x%02X", expectedID)
+		case frame := <-rxChan:
+			f := frame.(api.Frame)
+			if f.ID == expectedID {
+				return &f, nil
+			}
+			// Ignore other IDs and Messages on the Bus
+		}
+	}
+}

goTool/testrunner/tests.go

@@ -0,0 +1,139 @@
+package testrunner
+
+import (
+	"fmt"
+	"slices"
+	"time"
+
+	"alox.tool/api"
+	"alox.tool/uart"
+)
+
+func (tr *TestRunner) RunEchoTest() error {
+	frame, err := tr.Expect(api.CmdEcho, []byte{0x01}, api.CmdEcho, 1*time.Second)
+	if err != nil {
+		return err
+	}
+
+	if frame.Data[0] != 0x01 {
+		return fmt.Errorf("Got % X expected % X", frame.Data[0], 0x01)
+	}
+
+	return nil
+}
+
+func (tr *TestRunner) RunVersionTest() error {
+	frame, err := tr.Expect(api.CmdVersion, nil, api.CmdVersion, 1*time.Second)
+	if err != nil {
+		return err
+	}
+
+	// TODO: Check Version and Buildhash?
+	_, err = uart.ParseFrameVersion(*frame)
+	if err != nil {
+		return err
+	}
+
+	v, err := uart.ParseFrameVersion(*frame)
+	if v.Version != 1 {
+		return fmt.Errorf("Got %d expected %d", v.Version, 1)
+	}
+
+	return nil
+}
+
+func (tr *TestRunner) RunClientInfoTest() error {
+	_, err := tr.Expect(api.CmdClientInfo, nil, api.CmdClientInfo, 1*time.Second)
+	if err != nil {
+		return err
+	}
+
+	// TODO: Real Check
+	return nil
+}
+
+func (tr *TestRunner) RunClientInputTest() error {
+	_, err := tr.Expect(api.CmdClientInput, nil, api.CmdClientInput, 1*time.Second)
+	if err != nil {
+		return err
+	}
+
+	// TODO: Real Check
+	return nil
+}
+
+func (tr *TestRunner) RebuildNetwork() error {
+
+	// Hardcoded for now
+	Clients := map[string]string{
+		"C1": "/dev/ttyACM1",
+		"C2": "/dev/ttyACM2",
+		"C3": "/dev/ttyACM3",
+		"C4": "/dev/ttyACM4",
+	}
+
+	// Hardcoded for now
+	macAddresses := [][6]byte{
+		{0x50, 0x78, 0x7D, 0x18, 0x85, 0xA0},
+		{0x50, 0x78, 0x7D, 0x18, 0x7D, 0x74},
+		{0x50, 0x78, 0x7D, 0x18, 0x1D, 0x14},
+		{0x50, 0x78, 0x7D, 0x18, 0x00, 0x10},
+	}
+
+	// Hardcoded for now
+	err := RestartESPOnPort("/dev/ttyACM0")
+	if err != nil {
+		return fmt.Errorf("Could not Restart Master!")
+	}
+	time.Sleep(500 * time.Millisecond)
+
+	for c, p := range Clients {
+		fmt.Printf("Restarting Client %v", c)
+		err = RestartESPOnPort(p)
+		if err != nil {
+			fmt.Printf("Could not Restart Client %v on Port %v", c, p)
+			return err
+		}
+		time.Sleep(500 * time.Millisecond)
+	}
+
+	success := false
+	var frame *api.Frame
+	var clientInfos []api.PayloadClientInfo
+	var lastError string
+	for i := 0; i <= 5; i++ {
+		time.Sleep(1000 * time.Millisecond) // inital sleep for first network setup
+
+		var err error // for local error scope
+		frame, err = tr.Expect(api.CmdClientInfo, nil, api.CmdClientInfo, 1*time.Second)
+		if err != nil {
+			lastError = "No Uart Message"
+			continue
+		}
+
+		clientInfos, err = uart.ParseFrameClientInfo(*frame)
+		if err != nil {
+			lastError = fmt.Sprintf("Could not parse Message: %v", err)
+			continue
+		}
+
+		if len(clientInfos) != len(macAddresses) {
+			lastError = fmt.Sprintf("Want %v Clients, got %v Clients", len(macAddresses), len(clientInfos))
+			continue
+		}
+		success = true
+		break
+	}
+
+	if !success {
+		return fmt.Errorf("%v", lastError)
+	}
+
+	for _, client := range clientInfos {
+		if !slices.Contains(macAddresses, client.MACAddr) {
+			return fmt.Errorf("Client %v not found in expected list %v", client.MACAddr, macAddresses)
+		}
+	}
+
+	return nil
+}

goTool/uart/com.go

@@ -0,0 +1,138 @@
+package uart
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"time"
+
+	"alox.tool/api"
+	"alox.tool/eventbus"
+	"go.bug.st/serial"
+)
+
+type Com struct {
+	bus    eventbus.EventBus
+	port   serial.Port
+	cancel context.CancelFunc
+}
+
+func NewCom(bus eventbus.EventBus) (*Com, error) {
+	return &Com{
+		bus:    bus,
+		port:   nil,
+		cancel: nil,
+	}, nil
+}
+
+func (c *Com) Connect(portName string, baudrate int) error {
+	if c.port != nil {
+		return fmt.Errorf("Port already connected")
+	}
+	mode := &serial.Mode{BaudRate: baudrate}
+	port, err := serial.Open(portName, mode)
+	if err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	drv := New(c.bus)
+
+	go func() {
+		buff := make([]byte, 1024)
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			default:
+				n, err := port.Read(buff)
+				if err != nil {
+					log.Print("[Warning]: Read Error:", err)
+					return // Loop beenden bei Hardware-Fehler
+				}
+				if n > 0 {
+					for _, b := range buff[:n] {
+						//log.Printf("[RAW][RX] % X", b)
+						drv.ParseByte(b)
+					}
+				}
+			}
+		}
+	}()
+
+	c.port = port
+	c.cancel = cancel
+	return nil
+}
+
+func (c *Com) Close() {
+	c.cancel()
+	c.port.Close()
+}
+
+func packFrame(id byte, payload []byte) []byte {
+	out := make([]byte, 0, len(payload)+5) // Guessing extra Puffer size
+	checksum := id
+
+	out = append(out, StartByte)
+
+	// Helper für Escaping
+	writeEscaped := func(b byte) {
+		if b == StartByte || b == EscapeByte || b == EndByte {
+			out = append(out, EscapeByte)
+		}
+		out = append(out, b)
+	}
+
+	writeEscaped(id)
+	for _, b := range payload {
+		writeEscaped(b)
+		checksum ^= b
+	}
+
+	writeEscaped(checksum)
+	out = append(out, EndByte)
+	return out
+}
+
+func (c *Com) Send(id byte, payload []byte) error {
+	raw := packFrame(id, payload)
+	log.Printf("[RAW]: %v", raw)
+
+	//log.Printf("RAW: % X", raw)
+	_, err := c.port.Write(raw)
+
+	c.bus.Publish(api.TopicUARTTx, api.Frame{
+		Time: uint64(time.Now().UnixNano()),
+		ID:   id,
+		Data: payload,
+	})
+
+	return err
+}
+
+func (c *Com) EventbusHandler(ctx context.Context) error {
+	UActions := c.bus.Subscribe(api.TopicUartAction)
+
+	for {
+		select {
+		case <-ctx.Done():
+			return nil
+		case msgT := <-UActions:
+			switch msg := msgT.(type) {
+			case api.ActionUartConnect:
+				err := c.Connect(msg.Adapter, msg.Baudrate)
+				c.bus.Publish(api.TopicUartAction, api.ActionUartConnected{
+					Adapter:  msg.Adapter,
+					Baudrate: msg.Baudrate,
+					Error:    err,
+				})
+			case api.ActionUartDisconnect:
+				c.Close()
+				c.bus.Publish(api.TopicUartAction, api.ActionUartDisconnected{})
+			case api.ActionUartSendMessage:
+				c.Send(msg.MsgId, msg.Data)
+			}
+		}
+	}
+}

goTool/uart/commands.go

@@ -0,0 +1,189 @@
+package uart
+
+import (
+	"encoding/binary"
+	"fmt"
+	"log"
+	"math"
+
+	"alox.tool/api"
+)
+
+func ParseFrameVersion(frame api.Frame) (api.PayloadVersion, error) {
+	if len(frame.Data) != api.PayloadVersionSize {
+		return api.PayloadVersion{}, fmt.Errorf("payload wrong size: got %d bytes, want 10", len(frame.Data))
+	}
+
+	v := api.PayloadVersion{
+		Version:   binary.LittleEndian.Uint16(frame.Data[0:2]),
+		Buildhash: [7]uint8(frame.Data[2:10])}
+	return v, nil
+}
+
+func parseFrameClientInfoPart(data []byte) (api.PayloadClientInfo, error) {
+	if len(data) != api.PayloadClientInfoSize {
+		return api.PayloadClientInfo{}, fmt.Errorf("payload wrong size: got %d bytes, want 19", len(data))
+	}
+
+	v := api.PayloadClientInfo{
+		ClientID:           data[0],
+		IsAvailable:        data[1],
+		SlotIsUsed:         data[2],
+		MACAddr:            [6]uint8(data[3:9]),
+		LastPing:           binary.LittleEndian.Uint32(data[9:13]),
+		LastSuccessfulPing: binary.LittleEndian.Uint32(data[13:17]),
+		Version:            binary.LittleEndian.Uint16(data[17:19]),
+	}
+
+	return v, nil
+}
+
+func ParseFrameClientInfo(frame api.Frame) ([]api.PayloadClientInfo, error) {
+	if len(frame.Data) == 0 {
+		return nil, fmt.Errorf("empty frame data")
+	}
+
+	clientCount := int(frame.Data[0])
+
+	log.Printf("Clients %d", clientCount)
+
+	expectedLen := 1 + (clientCount * api.PayloadClientInfoSize)
+
+	if len(frame.Data) < expectedLen {
+		return nil, fmt.Errorf("frame data too short: got %d, want %d", len(frame.Data), expectedLen)
+	}
+
+	clientList := make([]api.PayloadClientInfo, 0, clientCount)
+
+	for i := 0; i < clientCount; i++ {
+		start := 1 + (i * api.PayloadClientInfoSize)
+		end := start + api.PayloadClientInfoSize
+
+		client, err := parseFrameClientInfoPart(frame.Data[start:end])
+		if err != nil {
+			log.Printf("Could not parse client part %d: %v", i, err)
+			continue
+		}
+		clientList = append(clientList, client)
+	}
+
+	return clientList, nil
+}
+
+func parseFrameClientInputPart(data []byte) (api.PayloadClientInput, error) {
+	if len(data) != api.PayloadClientInputSize {
+		return api.PayloadClientInput{}, fmt.Errorf("payload wrong size: got %d bytes, want 13", len(data))
+	}
+
+	v := api.PayloadClientInput{
+		ClientID:  data[0],
+		X:         math.Float32frombits(binary.LittleEndian.Uint32(data[1 : 1+4])),
+		Y:         math.Float32frombits(binary.LittleEndian.Uint32(data[5 : 5+4])),
+		InputMask: binary.LittleEndian.Uint32(data[9 : 9+4]),
+	}
+
+	return v, nil
+}
+
+func ParseFrameClientInput(frame api.Frame) ([]api.PayloadClientInput, error) {
+	if len(frame.Data) == 0 {
+		return nil, fmt.Errorf("empty frame data")
+	}
+
+	clientCount := int(frame.Data[0])
+
+	log.Printf("Clients %d", clientCount)
+
+	expectedLen := 1 + (clientCount * api.PayloadClientInputSize)
+
+	if len(frame.Data) < expectedLen {
+		return nil, fmt.Errorf("frame data too short: got %d, want %d", len(frame.Data), expectedLen)
+	}
+
+	clientList := make([]api.PayloadClientInput, 0, clientCount)
+
+	for i := 0; i < clientCount; i++ {
+		start := 1 + (i * api.PayloadClientInputSize)
+		end := start + api.PayloadClientInputSize
+
+		client, err := parseFrameClientInputPart(frame.Data[start:end])
+		if err != nil {
+			log.Printf("Could not parse client art %d: %v", i, err)
+			continue
+		}
+		clientList = append(clientList, client)
+	}
+
+	return clientList, nil
+}
+
+// Dummy for now Just get Data
+func ParseFrameOtaPayload(frame api.Frame) (api.PayloadOtaPayload, error) {
+	if len(frame.Data) == 0 {
+		return api.PayloadOtaPayload{}, fmt.Errorf("empty frame data")
+	}
+
+	status := api.PayloadOtaPayload{
+		Data:           frame.Data,
+		SequenzCounter: binary.LittleEndian.Uint16(frame.Data[0:2]),
+		WriteIndex:     binary.LittleEndian.Uint16(frame.Data[2:4]),
+		Error:          frame.Data[4],
+	}
+
+	return status, nil
+}
+
+// Dummy for now Just get Data
+func ParseFrameOtaStatus(frame api.Frame) (api.PayloadOtaStatus, error) {
+	if len(frame.Data) == 0 {
+		return api.PayloadOtaStatus{}, fmt.Errorf("empty frame data")
+	}
+
+	status := api.PayloadOtaStatus{
+		Data:           frame.Data,
+		SequenzCounter: binary.LittleEndian.Uint16(frame.Data[0:2]),
+		WriteIndex:     binary.LittleEndian.Uint16(frame.Data[2:4]),
+	}
+	return status, nil
+}
+
+// Dummy for now Just get Data
+func ParseFrameOtaStart(frame api.Frame) (api.PayloadOtaStart, error) {
+	if len(frame.Data) == 0 {
+		return api.PayloadOtaStart{}, fmt.Errorf("empty frame data")
+	}
+
+	status := api.PayloadOtaStart{
+		Data:     frame.Data,
+		Parition: frame.Data[0],
+		Error:    frame.Data[1],
+	}
+
+	return status, nil
+}
+
+// Dummy for now Just get Data
+func ParseFrameOtaEnd(frame api.Frame) (api.PayloadOtaEnd, error) {
+	if len(frame.Data) == 0 {
+		return api.PayloadOtaEnd{}, fmt.Errorf("empty frame data")
+	}
+
+	status := api.PayloadOtaEnd{
+		Data: frame.Data,
+	}
+
+	return status, nil
+}
+
+// Dummy for now Just get Data
+func ParseFrameOtaStartEspNow(frame api.Frame) (api.PayloadOtaStartEspNow, error) {
+	if len(frame.Data) == 0 {
+		return api.PayloadOtaStartEspNow{}, fmt.Errorf("empty frame data")
+	}
+
+	status := api.PayloadOtaStartEspNow{
+		Data: frame.Data,
+	}
+
+	return status, nil
+}

goTool/uart/parser.go

@@ -0,0 +1,128 @@
+package uart
+
+import (
+	"fmt"
+	"time"
+
+	"alox.tool/api"
+	"alox.tool/eventbus"
+)
+
+const (
+	StartByte  = 0xAA
+	EscapeByte = 0xBB
+	EndByte    = 0xCC
+)
+
+type parserState int
+
+const (
+	stateWaitingForStart parserState = iota
+	stateGetID
+	stateEscapedID
+	stateInPayload
+	stateEscapedPayload
+)
+
+type Parser struct {
+	bus        eventbus.EventBus
+	state      parserState
+	parsedData []byte
+	rawCapture []byte
+	checksum   byte
+}
+
+func New(bus eventbus.EventBus) *Parser {
+	return &Parser{
+		bus:        bus,
+		state:      stateWaitingForStart,
+		parsedData: make([]byte, 0, 1024*4),
+		rawCapture: make([]byte, 0, 1024*4),
+	}
+}
+
+func (p *Parser) reset() {
+	p.state = stateWaitingForStart
+	p.parsedData = p.parsedData[:0]
+	p.rawCapture = p.rawCapture[:0]
+	p.checksum = 0
+}
+
+func (p *Parser) pushError(reason string) {
+	// Throw Error on the Bus befor resetting
+	p.bus.Publish(api.TopicUARTError, fmt.Errorf("%s: %02X", reason, p.rawCapture))
+	p.reset()
+}
+
+func (p *Parser) emitFrame() {
+	if len(p.parsedData) == 0 {
+		p.reset()
+		return
+	}
+
+	// Copy Data for Message Frame
+	dataCopy := make([]byte, len(p.parsedData)-1) // Exclude ID
+	copy(dataCopy, p.parsedData[1:])
+
+	f := api.Frame{
+		Time: uint64(time.Now().UnixNano()),
+		ID:   p.parsedData[0],
+		Data: dataCopy,
+	}
+
+	p.bus.Publish(api.TopicUARTRx, f)
+	p.reset()
+}
+
+func (p *Parser) addByte(b byte) {
+	p.parsedData = append(p.parsedData, b)
+	p.checksum ^= b
+}
+
+func (p *Parser) ParseByte(b byte) {
+	p.rawCapture = append(p.rawCapture, b)
+
+	switch p.state {
+	case stateWaitingForStart:
+		if b == StartByte {
+			p.reset()
+			p.rawCapture = append(p.rawCapture, b) // Start Byte behalten
+			p.state = stateGetID
+		}
+
+	case stateGetID:
+		if b == EscapeByte {
+			p.state = stateEscapedID
+		} else {
+			p.addByte(b)
+			p.state = stateInPayload
+		}
+
+	case stateEscapedID:
+		p.addByte(b)
+		p.state = stateInPayload
+
+	case stateInPayload:
+		if b == EscapeByte {
+			p.state = stateEscapedPayload
+			return
+		}
+		if b == StartByte {
+			p.pushError("unexpected start byte")
+			return
+		}
+		if b == EndByte {
+			if p.checksum != 0 {
+				p.pushError("checksum mismatch")
+				return
+			}
+			p.emitFrame()
+			return
+		}
+		p.addByte(b)
+
+	case stateEscapedPayload:
+		p.addByte(b)
+		p.state = stateInPayload
+	}
+}

main/CMakeLists.txt

@@ -1,4 +1,4 @@
-idf_component_register(SRCS "main.c" "uart_handler.c" "communication_handler.c" "client_handler.c" "message_parser.c" "message_builder.c" "message_handler.c"
+idf_component_register(SRCS "main.c" "uart_handler.c" "communication_handler.c" "client_handler.c" "message_parser.c" "message_builder.c" "message_handler.c" "ota_update.c" "i2c.c"
                        INCLUDE_DIRS ".")
 
 # Get the short Git commit hash of the current HEAD.

main/client_handler.c

@@ -1,6 +1,7 @@
 #include "client_handler.h"
-#include "communication_handler.h"
+
 #include "esp_log.h"
+#include "freertos/task.h"
 #include <stdbool.h>
 #include <stdint.h>
 #include <string.h>
@@ -40,6 +41,8 @@ int add_client(ClientList *list, const uint8_t *client_mac) {
 
   list->Clients[slot].slotIsUsed = true;
   list->Clients[slot].isAvailable = true;
+  list->Clients[slot].last_seen = xTaskGetTickCount();
+  list->Clients[slot].retry_counter = 0;
   memcpy(list->Clients[slot].macAddr, client_mac, MAC_LENGTH);
   list->ClientCount++;
   return CLIENT_OK;

main/client_handler.h

@@ -21,6 +21,16 @@ enum ClientErrors {
   CLIENT_INVALID_ID = -4,
 };
 
+typedef enum {
+  OTA_IDLE,
+  OTA_AWAITING_ACK,
+  OTA_PREPARING,
+  OTA_READY,
+  OTA_UPDATING,
+  OTA_FAILED,
+  OTA_SUCCESS,
+} ota_status_t;
+
 typedef struct {
   bool slotIsUsed;
   bool isAvailable;
@@ -28,6 +38,13 @@ typedef struct {
   uint8_t macAddr[MAC_LENGTH];
   TickType_t lastSuccessfullPing;
   TickType_t lastPing;
+  uint16_t clientVersion;
+  ota_status_t ota_status;
+  uint16_t current_block_id;
+  uint32_t chunk_bitmask;
+  uint32_t resent_chunks_counter;
+  uint8_t retry_counter;
+  TickType_t last_seen;
 } ClientInfo;
 
 typedef struct {

main/communication_handler.c

@@ -1,45 +1,128 @@
+#include "communication_handler.h"
+#include "esp_err.h"
 #include "esp_log.h"
 #include "esp_now.h"
+#include "esp_ota_ops.h"
+#include "esp_partition.h"
 #include "esp_timer.h"
 #include "freertos/idf_additions.h"
+#include "freertos/task.h"
+#include "message_structs.h"
+#include "ota_update.h"
 
 #include "client_handler.h"
-#include "communication_handler.h"
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+uint8_t broadcast_address[ESP_NOW_ETH_ALEN] = {0xFF, 0xFF, 0xFF,
+                                               0xFF, 0xFF, 0xFF};
 
 static const char *TAG = "ALOX - COM";
 
-QueueHandle_t messageQueue = NULL; // Warteschlange für empfangene Nachrichten
+static QueueHandle_t messageQueue = NULL;
-bool hasMaster = false;
+static struct ESP_MessageBroker mr;
+static QueueHandle_t ESP_recieved_message_queue;
+
+void free_ESPNOW_MessageInfo(ESPNOW_MessageInfo *msg) {
+  if (msg->esp_now_info.src_addr) {
+    free(msg->esp_now_info.src_addr);
+    msg->esp_now_info.src_addr = NULL;
+  }
+  if (msg->esp_now_info.des_addr) {
+    free(msg->esp_now_info.des_addr);
+    msg->esp_now_info.des_addr = NULL;
+  }
+  if (msg->esp_now_info.rx_ctrl) {
+    free(msg->esp_now_info.rx_ctrl);
+    msg->esp_now_info.rx_ctrl = NULL;
+  }
+  if (msg->data) {
+    free(msg->data);
+    msg->data = NULL;
+  }
+}
+
+void ESP_InitMessageBroker(QueueHandle_t msg_queue_handle) {
+  mr.num_direct_callbacks = 0;
+  mr.num_task_callbacks = 0;
+  ESP_recieved_message_queue = msg_queue_handle;
+  return;
+}
+
+void ESP_RegisterFunction(CommandPages command,
+                          ESP_RegisterFunctionCallback callback) {
+  mr.FunctionList[mr.num_direct_callbacks].MSGID = command;
+  mr.FunctionList[mr.num_direct_callbacks].callback = callback;
+  mr.num_direct_callbacks++;
+  return;
+}
+
+void ESP_RegisterTask(CommandPages command, ESP_RegisterTaskCallback callback) {
+  mr.TaskList[mr.num_task_callbacks].MSGID = command;
+  mr.TaskList[mr.num_task_callbacks].task = callback;
+  mr.num_task_callbacks++;
+}
+
+void ESP_MessageBrokerTask(void *param) {
+  ESPNOW_MessageInfo received_msg;
+  ESP_MessageBrokerTaskParams_t *task_params =
+      (ESP_MessageBrokerTaskParams_t *)param;
+
+  QueueHandle_t msg_queue = task_params->message_queue;
+
+  if (msg_queue == NULL) {
+    ESP_LOGE(TAG, "Message queue not initialized. Terminating task.");
+    vTaskDelete(NULL);
+  }
+
+  ESP_LOGI(TAG, "Message broker task started.");
+
+  while (1) {
+    if (xQueueReceive(msg_queue, &received_msg, portMAX_DELAY)) {
+
+      const BaseMessage *message = (const BaseMessage *)received_msg.data;
+      for (int i = 0; i < mr.num_direct_callbacks; i++) {
+        if (mr.FunctionList[i].MSGID == message->commandPage) {
+          mr.FunctionList[i].callback(&received_msg.esp_now_info,
+                                      received_msg.data, received_msg.data_len);
+          free_ESPNOW_MessageInfo(&received_msg);
+        }
+      }
+    }
+  }
+}
+
+static bool hasMaster = false;
 static ClientList *esp_client_list;
+static uint8_t channelNumber = 0;
 
-#define MAC_STRING_BUFFER_SIZE 18
+int init_com(ClientList *clients, uint8_t wifi_channel) {
-
+  messageQueue = xQueueCreate(MESSAGE_QUEUE_SIZE, sizeof(ESPNOW_MessageInfo));
-void init_com(ClientList *clients) {
-  // Initialisiere die Kommunikations-Warteschlange
-  messageQueue = xQueueCreate(MESSAGE_QUEUE_SIZE, sizeof(BaseMessage));
   if (messageQueue == NULL) {
     ESP_LOGE(TAG, "Message queue creation failed");
+    return -1;
   }
 
   esp_client_list = clients;
   hasMaster = false;
+  channelNumber = wifi_channel;
+  return 0;
 }
 
-void add_peer(uint8_t *macAddr) {
+int add_peer(uint8_t *macAddr) {
   esp_now_peer_info_t peerInfo = {
-      .channel =
+      .channel = channelNumber,
-          0, // Standardkanal, sollte uit den anderen Geräten übereinstimmen
       .ifidx = ESP_IF_WIFI_STA,
-      .encrypt = false, // Keine Verschlüsselung (kann geändert werden)
+      .encrypt = false,
   };
   memcpy(peerInfo.peer_addr, macAddr, ESP_NOW_ETH_ALEN);
 
   esp_err_t result = esp_now_add_peer(&peerInfo);
   if (result == ESP_OK) {
-    ESP_LOGI(TAG, "Peer added: " MACSTR, MAC2STR(peerInfo.peer_addr));
+    ESP_LOGI(TAG, "Peer added");
 
     if (!IS_BROADCAST_ADDR(macAddr)) {
       int ret = add_client(esp_client_list, peerInfo.peer_addr);
@@ -47,6 +130,7 @@ void add_peer(uint8_t *macAddr) {
         ESP_LOGE(TAG, "Client could not be added to client handler, removing "
                       "it from esp now client list!");
         esp_now_del_peer(peerInfo.peer_addr);
+        return -1;
       }
       ESP_LOGI(TAG, "New client added.");
     }
@@ -54,25 +138,24 @@ void add_peer(uint8_t *macAddr) {
     ESP_LOGW(TAG, "Peer already exists.");
     int id = get_client_id(esp_client_list, peerInfo.peer_addr);
     if (id >= 0) {
-      ESP_LOGI(TAG, "Client found again, welcome back!");
       esp_client_list->Clients[id].isAvailable = true;
     }
   } else {
     ESP_LOGE(TAG, "Failed to add peer: %s", esp_err_to_name(result));
+    return -1;
   }
+  return 0;
 }
 
 BaseMessage MessageBuilder(CommandPages commandPage, PayloadUnion payload,
                            size_t payload_size) {
   BaseMessage message;
 
-  // Initialisierung der BaseMessage
   message.commandPage = commandPage;
   message.version = 1;
   message.length = (uint16_t)payload_size;
 
-  // Kopieren des Payloads in die Union
+  memset(&message.payload, 0, sizeof(message.payload));
-  memset(&message.payload, 0, sizeof(message.payload)); // Sicherheitsmaßnahme
   memcpy(&message.payload, &payload, payload_size);
 
   return message;
@@ -87,21 +170,18 @@ void master_broadcast_task(void *param) {
 
     ESP_ERROR_CHECK(esp_now_send(broadcast_address, (uint8_t *)&message,
                                  sizeof(BaseMessage)));
-    ESP_LOGI(TAG, "Broadcast Message sent");
     vTaskDelay(pdMS_TO_TICKS(5000));
   }
 }
 
 void master_broadcast_ping(void *param) {
   while (1) {
-    // BroadCastPayload payload = {};
     PingPayload payload = {};
     payload.timestamp = esp_timer_get_time();
     BaseMessage message =
         MessageBuilder(PingPage, *(PayloadUnion *)&payload, sizeof(payload));
     ESP_ERROR_CHECK(esp_now_send(broadcast_address, (uint8_t *)&message,
                                  sizeof(BaseMessage)));
-    ESP_LOGI(TAG, "Broadcast PING Message sent");
     vTaskDelay(pdMS_TO_TICKS(2500));
   }
 }
@@ -110,146 +190,204 @@ void master_ping_task(void *param) {
   while (1) {
     for (size_t i = 0; i < MAX_CLIENTS; i++) {
       if (esp_client_list->Clients[i].isAvailable) {
-        ESP_LOGI(TAG, "SEND PING TO %zu: " MACSTR, i,
-                 MAC2STR(esp_client_list->Clients[i].macAddr));
         PingPayload payload = {};
         payload.timestamp = esp_timer_get_time();
         BaseMessage message = MessageBuilder(
             PingPage, *(PayloadUnion *)&payload, sizeof(payload));
         esp_now_send(esp_client_list->Clients[i].macAddr, (uint8_t *)&message,
                      sizeof(BaseMessage));
-        ESP_LOGI(TAG, "SENDING PING!!!!");
       }
     }
     vTaskDelay(pdMS_TO_TICKS(1000));
   }
 }
 
-void master_receive_callback(const esp_now_recv_info_t *esp_now_info,
+void master_StatusCallback(const esp_now_recv_info_t *esp_now_info,
-                             const uint8_t *data, int data_len) {
+                           const uint8_t *data, int data_len) {
-  ESP_LOGI(TAG, "MASTER GOT MESSAGE");
-
   const BaseMessage *message = (const BaseMessage *)data;
-  switch (message->commandPage) {
+  ESP_LOGI(TAG, "SRC");
-  case StatusPage:
+  ESP_LOGI(TAG,
-    ESP_LOGI(TAG, "GOT STATUS MESSAGE");
+           "Status Message Received: status: %d, runningPartition: %d, uptime: "
-    break;
+           "%d, version: %d",
-  case PingPage:
+           message->payload.status_payload.status,
-    ESP_LOGI(TAG, "GOT PING MESSAGE");
+           message->payload.status_payload.runningPartition,
-    uint32_t currentTime = esp_timer_get_time();
+           message->payload.status_payload.uptime,
-    uint32_t diff = currentTime - message->payload.ping_payload.timestamp;
+           message->payload.status_payload.version);
-
-    ESP_LOGI(TAG, "Start: %lu, End: %lu, Diff: %lu, Ping: %lu",
-             message->payload.ping_payload.timestamp, currentTime, diff,
-             diff / 1000); // ping in ms
-
-    int id = get_client_id(esp_client_list, esp_now_info->src_addr);
-    if (id >= 0) {
-      esp_client_list->Clients[id].lastSuccessfullPing = xTaskGetTickCount();
-      esp_client_list->Clients[id].lastPing = (diff / 1000);
-      ESP_LOGI(TAG, "Updated client %d: " MACSTR " last ping time to %lu", id,
-               MAC2STR(esp_now_info->src_addr),
-               esp_client_list->Clients[id].lastSuccessfullPing);
-    }
-    break;
-  case BroadCastPage:
-    ESP_LOGI(TAG, "MASTER SHOULD NOT GET BROADCAST MESSAGE, is there another "
-                  "master calling?");
-    break;
-  case RegisterPage:
-    ESP_LOGI(TAG, "WILL REGISTER DEVICE");
-    esp_now_peer_info_t checkPeerInfo;
-    esp_err_t checkPeer =
-        esp_now_get_peer(esp_now_info->src_addr, &checkPeerInfo);
-    switch (checkPeer) {
-    case (ESP_OK):
-      ESP_LOGI(TAG, "CLIENT BEKANNT");
-      int id = get_client_id(esp_client_list, esp_now_info->src_addr);
-      esp_client_list->Clients[id].isAvailable = true;
-      esp_client_list->Clients[id].lastSuccessfullPing = xTaskGetTickCount();
-      ESP_LOGI(TAG, "Updated client %d last ping time to %lu", id,
-               esp_client_list->Clients[id].lastSuccessfullPing);
-      break;
-    case (ESP_ERR_ESPNOW_NOT_INIT):
-      ESP_LOGI(TAG, "Not initalised");
-      break;
-    case (ESP_ERR_ESPNOW_ARG):
-      ESP_LOGI(TAG, "ESP ERR ESPNOW_ARG");
-      break;
-    case (ESP_ERR_ESPNOW_NOT_FOUND):
-      ESP_LOGI(TAG, "CLIENT WIRD IN DIE LISTE AUFGENOMMEN");
-      add_peer(esp_now_info->src_addr);
-      break;
-    default:
-      ESP_LOGI(TAG, "Unknown Message %i", checkPeer);
-    }
-    break;
-  default:
-    ESP_LOGI(TAG, "Unknown CommandPage %i", message->commandPage);
-    break;
-  }
 }
-void client_receive_callback(const esp_now_recv_info_t *esp_now_info,
-                             const uint8_t *data, int data_len) {
-  ESP_LOGI(TAG, "SLAVE GOT MESSAGE");
-  ESP_LOGI(TAG, "Received message from: " MACSTR,
-           MAC2STR(esp_now_info->src_addr));
-  ESP_LOGI(TAG, "Message: %.*s", data_len, data);
 
+void master_RegisterCallback(const esp_now_recv_info_t *esp_now_info,
+                             const uint8_t *data, int data_len) {
   BaseMessage replyMessage = {};
 
-  const BaseMessage *message = (const BaseMessage *)data;
+  esp_now_peer_info_t checkPeerInfo;
-  switch (message->commandPage) {
+  esp_err_t checkPeer =
-  case StatusPage:
+      esp_now_get_peer(esp_now_info->src_addr, &checkPeerInfo);
-    ESP_LOGI(TAG, "GOT STATUS MESSAGE");
+  switch (checkPeer) {
+  case (ESP_OK):
+    int id = get_client_id(esp_client_list, esp_now_info->src_addr);
+    esp_client_list->Clients[id].isAvailable = true;
+    esp_client_list->Clients[id].lastSuccessfullPing = xTaskGetTickCount();
     break;
-  case PingPage:
+  case (ESP_ERR_ESPNOW_NOT_FOUND):
-    ESP_LOGI(TAG, "GOT PING MESSAGE");
+    add_peer(esp_now_info->src_addr);
-    replyMessage = MessageBuilder(PingPage, *(PayloadUnion *)&message->payload,
+    GetStatusPayload payload = {};
-                                  sizeof(message->payload));
+    replyMessage = MessageBuilder(GetStatusPage, *(PayloadUnion *)&payload,
-    ESP_ERROR_CHECK(esp_now_send(
+                                  sizeof(payload));
-        esp_now_info->src_addr, (uint8_t *)&replyMessage, sizeof(BaseMessage)));
+    esp_now_send(esp_now_info->src_addr, (uint8_t *)&replyMessage,
-    break;
+                 sizeof(BaseMessage));
-  case BroadCastPage:
-    ESP_LOGI(TAG, "GOT BROADCAST MESSAGE");
-    if (!hasMaster) {
-      if (IS_BROADCAST_ADDR(esp_now_info->des_addr)) {
-        ESP_LOGI(TAG,
-                 "GOT BROADCAST MESSAGE ATTEMPTING TO REGISTER TO MASTER!");
-        add_peer(esp_now_info->src_addr);
-        replyMessage =
-            MessageBuilder(RegisterPage, *(PayloadUnion *)&message->payload,
-                           sizeof(message->payload));
-        ESP_ERROR_CHECK(esp_now_send(esp_now_info->src_addr,
-                                     (uint8_t *)&replyMessage,
-                                     sizeof(BaseMessage)));
-        hasMaster = true;
-      }
-    }
-    break;
-  case RegisterPage:
     break;
   default:
-    ESP_LOGI(TAG, "GOT UNKONW MESSAGE");
     break;
   }
 }
 
-void client_data_sending_task(void *param) {
+void master_pingCallback(const esp_now_recv_info_t *esp_now_info,
-  while (1) {
+                         const uint8_t *data, int data_len) {
-    const char *dataToSend = "DATA:42";
+  const BaseMessage *message = (const BaseMessage *)data;
-    ESP_LOGI(TAG, "SEND DATA");
+
-    esp_now_send(NULL, (uint8_t *)dataToSend,
+  uint32_t currentTime = esp_timer_get_time();
-                 strlen(dataToSend));
+  uint32_t diff = currentTime - message->payload.ping_payload.timestamp;
-    vTaskDelay(pdMS_TO_TICKS(5000));
+
+  int id = get_client_id(esp_client_list, esp_now_info->src_addr);
+  if (id >= 0) {
+    esp_client_list->Clients[id].lastSuccessfullPing = xTaskGetTickCount();
+    esp_client_list->Clients[id].lastPing = (diff / 1000);
   }
 }
 
+void master_broadcastCallback(const esp_now_recv_info_t *esp_now_info,
+                              const uint8_t *data, int data_len) {}
+
+void ESPNOW_RegisterMasterCallbacks() {
+  ESP_RegisterFunction(StatusPage, master_StatusCallback);
+  ESP_RegisterFunction(RegisterPage, master_RegisterCallback);
+  ESP_RegisterFunction(PingPage, master_pingCallback);
+  ESP_RegisterFunction(BroadCastPage, master_broadcastCallback);
+}
+
+void slave_broadcastCallback(const esp_now_recv_info_t *esp_now_info,
+                             const uint8_t *data, int data_len) {
+  if (!hasMaster) {
+    if (IS_BROADCAST_ADDR(esp_now_info->des_addr)) {
+      add_peer(esp_now_info->src_addr);
+      BaseMessage replyMessage = {};
+      replyMessage =
+          MessageBuilder(RegisterPage, *(PayloadUnion *)&replyMessage.payload,
+                         sizeof(replyMessage.payload));
+      esp_now_send(esp_now_info->src_addr, (uint8_t *)&replyMessage,
+                   sizeof(BaseMessage));
+      hasMaster = true;
+    }
+  }
+}
+
+void slave_getstatusCallback(const esp_now_recv_info_t *esp_now_info,
+                             const uint8_t *data, int data_len) {
+  StatusPayload payload = {
+      .status = 1,
+      .runningPartition = 1,
+      .uptime = 100,
+      .version = 0x0002,
+
+  };
+  BaseMessage replyMessage =
+      MessageBuilder(StatusPage, *(PayloadUnion *)&payload, sizeof(payload));
+  esp_now_send(esp_now_info->src_addr, (uint8_t *)&replyMessage,
+               sizeof(BaseMessage));
+}
+
+void slave_pingCallback(const esp_now_recv_info_t *esp_now_info,
+                        const uint8_t *data, int data_len) {
+  if (!hasMaster)
+    return;
+
+  const BaseMessage *message = (const BaseMessage *)data;
+  BaseMessage replyMessage = MessageBuilder(
+      PingPage, *(PayloadUnion *)&message->payload, sizeof(message->payload));
+  esp_now_send(esp_now_info->src_addr, (uint8_t *)&replyMessage,
+               sizeof(BaseMessage));
+}
+
+void ESPNOW_RegisterSlaveCallbacks() {
+  ESP_RegisterFunction(BroadCastPage, slave_broadcastCallback);
+  ESP_RegisterFunction(GetStatusPage, slave_getstatusCallback);
+  ESP_RegisterFunction(PingPage, slave_pingCallback);
+}
+
+void master_receive_callback(const esp_now_recv_info_t *esp_now_info,
+                             const uint8_t *data, int data_len) {
+  uint8_t *copied_data = (uint8_t *)malloc(data_len);
+  if (copied_data == NULL) {
+    return;
+  }
+  memcpy(copied_data, data, data_len);
+
+  ESPNOW_MessageInfo msg_info;
+  msg_info.esp_now_info.src_addr = malloc(6);
+  if (msg_info.esp_now_info.src_addr) {
+    memcpy(msg_info.esp_now_info.src_addr, esp_now_info->src_addr, 6);
+  }
+
+  msg_info.esp_now_info.des_addr = malloc(6);
+  if (msg_info.esp_now_info.des_addr) {
+    memcpy(msg_info.esp_now_info.des_addr, esp_now_info->des_addr, 6);
+  }
+
+  msg_info.esp_now_info.rx_ctrl = malloc(sizeof(wifi_pkt_rx_ctrl_t));
+  if (msg_info.esp_now_info.rx_ctrl) {
+    memcpy(msg_info.esp_now_info.rx_ctrl, esp_now_info->rx_ctrl,
+           sizeof(wifi_pkt_rx_ctrl_t));
+  }
+
+  msg_info.data = copied_data;
+  msg_info.data_len = data_len;
+
+  xQueueSend(ESP_recieved_message_queue, &msg_info, portMAX_DELAY);
+}
+
+void client_receive_callback(const esp_now_recv_info_t *esp_now_info,
+                             const uint8_t *data, int data_len) {
+  uint8_t *copied_data = (uint8_t *)malloc(data_len);
+  if (copied_data == NULL) {
+    return;
+  }
+  memcpy(copied_data, data, data_len);
+
+  ESPNOW_MessageInfo msg_info;
+  // Initialize the esp_now_info struct to zeros
+  memset(&msg_info.esp_now_info, 0, sizeof(esp_now_recv_info_t));
+
+  // Now, allocate and copy the data pointed to by the pointers within
+  // esp_now_info src_addr
+  msg_info.esp_now_info.src_addr = malloc(6);
+  if (msg_info.esp_now_info.src_addr) {
+    memcpy(msg_info.esp_now_info.src_addr, esp_now_info->src_addr, 6);
+  } else {
+    free(copied_data);
+    return;
+  }
+
+  // des_addr
+  msg_info.esp_now_info.des_addr = malloc(6);
+  if (msg_info.esp_now_info.des_addr) {
+    memcpy(msg_info.esp_now_info.des_addr, esp_now_info->des_addr, 6);
+  } else {
+    free(msg_info.esp_now_info.src_addr);
+    free(copied_data);
+    return;
+  }
+
+  msg_info.esp_now_info.rx_ctrl = NULL; // Set to NULL as we are not copying it
+
+  msg_info.data = copied_data;
+  msg_info.data_len = data_len;
+
+  xQueueSend(ESP_recieved_message_queue, &msg_info, portMAX_DELAY);
+}
+
 void client_monitor_task(void *pvParameters) {
-  TickType_t timeout_ticks =
+  TickType_t timeout_ticks = pdMS_TO_TICKS(CLIENT_TIMEOUT_MS);
-      pdMS_TO_TICKS(CLIENT_TIMEOUT_MS);
+  TickType_t interval_ticks = pdMS_TO_TICKS(CHECK_INTERVAL_MS);
-  TickType_t interval_ticks =
-      pdMS_TO_TICKS(CHECK_INTERVAL_MS);
 
   while (1) {
     TickType_t now = xTaskGetTickCount();
@@ -261,11 +399,34 @@ void client_monitor_task(void *pvParameters) {
 
         if (time_diff > timeout_ticks) {
           esp_client_list->Clients[i].isAvailable = false;
-          ESP_LOGW(TAG, "Client %d (MAC: " MACSTR ") is unavailable",
-                   MAC2STR(esp_client_list->Clients[i].macAddr));
         }
       }
     }
     vTaskDelay(interval_ticks);
   }
 }
+
+const esp_partition_t *ota_update_partition = NULL;
+
+void ESPNOW_RegisterOTAMaster() {
+  // Observe this States for all Slaves in ClientList
+  // OTA_SLAVE_PREPARING
+  // OTA_SLAVE_READY
+  // OTA_SLAVE_ERROR
+  // OTA_SLAVE_WRITE_FINISHED
+  // OTA_SLAVE_FINISHED
+
+  ESP_RegisterFunction(OTA_PREPARE_ACKNOWLEDGED,
+                       master_ota_prepare_acknowledge_callback);
+  ESP_RegisterFunction(OTA_READY_TO_RECEIVE,
+                       master_ota_ready_to_recieve_callback);
+  ESP_RegisterFunction(OTA_UPDATE_SLAVE_ACKED,
+                       master_ota_update_slave_acknowledge_callback);
+}
+
+void ESPNOW_RegisterOTASlave() {
+  ESP_RegisterFunction(OTA_PREPARE_FOR_UPDATE, slave_Prep_Upgrade_Callback);
+  ESP_RegisterFunction(OTA_CHUNK, slave_Update_Chunk_Callback);
+
+  ESP_RegisterFunction(OTA_FINISH_UPDATE, slave_Update_Finished_Callback);
+}

main/communication_handler.h

@@ -11,53 +11,42 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
+#include <sys/types.h>
+#include "esp_partition.h"
+#include "message_structs.h"
 
 #define BROADCAST_INTERVAL_MS 500
 
 #define CLIENT_TIMEOUT_MS 5000 // 5 Sekunden Timeout
 #define CHECK_INTERVAL_MS 1000 // Jede Sekunde überprüfen
-static uint8_t broadcast_address[ESP_NOW_ETH_ALEN] = {0xFF, 0xFF, 0xFF,
-                                                      0xFF, 0xFF, 0xFF};
-#define IS_BROADCAST_ADDR(addr)                                                \
-  (memcmp(addr, broadcast_address, ESP_NOW_ETH_ALEN) == 0)
 
-#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
+extern uint8_t broadcast_address[ESP_NOW_ETH_ALEN];
-#define MACSTR "%02X:%02X:%02X:%02X:%02X:%02X"
+#define IS_BROADCAST_ADDR(addr) (memcmp(addr, broadcast_address, ESP_NOW_ETH_ALEN) == 0)
 
 #define MESSAGE_QUEUE_SIZE 10
 
-typedef enum {
+typedef union __attribute__((packed)) {
-  BroadCastPage,
+  OTA_PREPARE_FOR_UPDATE_Payload ota_prepare_for_update_payload;
-  StatusPage,
+  OTA_PREPARE_ACKNOWLEDGED_Payload ota_prepare_acknowledged_payload;
-  PingPage,
+  OTA_READY_TO_RECEIVE_Payload ota_ready_to_receive_payload;
-  RegisterPage,
+  OTA_CHUNK_Payload ota_chunk_payload;
-} CommandPages;
+  OTA_REQUEST_BLOCK_STATUS_Payload ota_request_block_status_payload;
-
+  OTA_BLOCK_STATUS_REPORT_Payload ota_block_status_report_payload;
-typedef struct {
+  OTA_COMMIT_BLOCK_Payload ota_commit_block_payload;
-  uint32_t uptime;
+  OTA_BLOCK_COMMITTED_Payload ota_block_committed_payload;
-  uint8_t status;
+  OTA_FINISH_UPDATE_Payload ota_finish_update_payload;
-} StatusPayload;
+  OTA_UPDATE_STATUS_Payload ota_update_status_payload;
-
-typedef struct {
-  uint32_t timestamp;
-} PingPayload;
-
-typedef struct {
-} BroadCastPayload;
-
-typedef struct {
-  bool familierClient;
-} RegisterPayload;
-
-typedef union {
   StatusPayload status_payload;
+  ConfigPayload config_payload;
   PingPayload ping_payload;
   BroadCastPayload broadcast_payload;
   RegisterPayload register_payload;
+  FirmwarePrepPayload firmware_prep_payload;
+  FirmwarePayload firmware_payload;
 } PayloadUnion;
 
-typedef struct {
+typedef struct __attribute__((packed)) {
-  uint16_t version;
+  uint16_t version; // protcol version
   CommandPages commandPage;
   uint16_t length;
   PayloadUnion payload;
@@ -66,9 +55,52 @@ typedef struct {
 static_assert(sizeof(BaseMessage) <= 255,
               "BaseMessage darf nicht größer als 255 sein");
 
-void init_com(ClientList *clients);
+typedef void (*ESP_RegisterFunctionCallback)(
+    const esp_now_recv_info_t *esp_now_info, const uint8_t *data, int data_len);
+typedef void (*ESP_RegisterTaskCallback)(
+    const esp_now_recv_info_t *esp_now_info, const uint8_t *data, int data_len);
+
+struct ESP_RegisterdFunction {
+  CommandPages MSGID;
+  ESP_RegisterFunctionCallback callback;
+};
+
+struct ESP_RegisterdTask {
+  CommandPages MSGID;
+  ESP_RegisterTaskCallback task;
+};
+
+struct ESP_MessageBroker {
+  struct ESP_RegisterdFunction FunctionList[64];
+  uint8_t num_direct_callbacks;
+  struct ESP_RegisterdTask TaskList[64];
+  uint8_t num_task_callbacks;
+};
+
+typedef struct {
+  QueueHandle_t message_queue;
+} ESP_MessageBrokerTaskParams_t;
+
+typedef struct {
+  esp_now_recv_info_t esp_now_info;
+  uint8_t *data;
+  int data_len;
+} ESPNOW_MessageInfo;
+
+void ESP_InitMessageBroker(QueueHandle_t msg_queue_handle);
+void ESP_RegisterFunction(CommandPages command,
+                          ESP_RegisterFunctionCallback callback);
+void ESP_RegisterTask(CommandPages command, ESP_RegisterTaskCallback callback);
+void ESP_MessageBrokerTask(void *param);
+
+void ESPNOW_RegisterMasterCallbacks();
+void ESPNOW_RegisterSlaveCallbacks();
+void ESPNOW_RegisterOTAMaster();
+void ESPNOW_RegisterOTASlave();
+
+int init_com(ClientList *clients, uint8_t wifi_channel);
 int getNextFreeClientId();
-void add_peer(uint8_t *macAddr);
+int add_peer(uint8_t *macAddr);
 BaseMessage MessageBuilder(CommandPages commandPage, PayloadUnion payload,
                            size_t payload_size);
 
@@ -81,6 +113,10 @@ void master_receive_callback(const esp_now_recv_info_t *esp_now_info,
 void client_receive_callback(const esp_now_recv_info_t *esp_now_info,
                              const uint8_t *data, int data_len);
 void client_data_sending_task(void *param);
+void client_send_random_data_task(void *param);
+
 void client_monitor_task(void *pvParameters);
 
+void send_ota_block_chunks(uint8_t client_id, uint16_t block_id);
+
 #endif

main/i2c.c

@@ -0,0 +1,278 @@
+#include "i2c.h"
+#include "bma4.h"
+#include "bma456h.h"
+#include "bma4_defs.h"
+#include "driver/gpio.h"
+#include "driver/i2c_master.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "freertos/idf_additions.h"
+#include "hal/gpio_types.h"
+#include "ota_update.h"
+#include <rom/ets_sys.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static i2c_master_bus_handle_t bus_handle;
+static i2c_master_dev_handle_t bma456_dev_handle;
+static struct bma4_dev bma456_struct;
+
+volatile uint8_t interrupt_status = 0;
+uint8_t int_line;
+struct bma4_int_pin_config pin_config = {0};
+uint16_t int_status = 0;
+
+#define BMA4_READ_WRITE_LEN UINT8_C(46)
+#define BMA456W_INT_PIN 7
+
+static void interrupt_callback(void *) {
+  interrupt_status = 1;
+  // ESP_LOGI("INTERRUPT", "STEP DETECTED");
+}
+
+/******************************************************************************/
+/*!                User interface functions                                   */
+
+/*!
+ * I2C read function map to ESP platform
+ */
+BMA4_INTF_RET_TYPE bma4_i2c_read(uint8_t reg_addr, uint8_t *reg_data,
+                                 uint32_t len, void *intf_ptr) {
+  // ESP_ERROR_CHECK(i2c_master_receive(bma456_dev_handle, reg_data, len, -1));
+  esp_err_t err = i2c_master_transmit_receive(bma456_dev_handle, &reg_addr, 1,
+                                              reg_data, len, -1);
+  return (err == ESP_OK) ? BMA4_OK : BMA4_E_COM_FAIL;
+  // return BMA4_OK;
+}
+
+/*!
+ * I2C write function map to ESP platform
+ */
+BMA4_INTF_RET_TYPE bma4_i2c_write(uint8_t reg_addr, const uint8_t *reg_data,
+                                  uint32_t len, void *intf_ptr) {
+  // ESP_ERROR_CHECK(i2c_master_transmit(bma456_dev_handle, reg_data, len, -1));
+  // Bei Bosch muss zuerst das Register, dann die Daten in einem Transfer
+  // gesendet werden
+  uint8_t *buffer = malloc(len + 1);
+  if (!buffer)
+    return BMA4_E_NULL_PTR;
+
+  buffer[0] = reg_addr;
+
+  ESP_LOGI("I2CWrite", "Message Length: %d", len);
+
+  memcpy(&buffer[1], reg_data, len);
+
+  esp_err_t err = i2c_master_transmit(bma456_dev_handle, buffer, len + 1, -1);
+  free(buffer);
+
+  return (err == ESP_OK) ? BMA4_OK : BMA4_E_COM_FAIL;
+  // return BMA4_OK;
+}
+
+/*!
+ * Delay function map to ESP platform
+ */
+void bma4_delay_us(uint32_t period, void *intf_ptr) {
+  uint32_t wait_ms = period / 1000;
+  uint32_t wait_us = period % 1000;
+  if (wait_ms) {
+    vTaskDelay(pdMS_TO_TICKS(wait_ms));
+  }
+  ets_delay_us(wait_us);
+}
+
+/*!
+ *  @brief Prints the execution status of the APIs.
+ */
+void bma4_error_codes_print_result(const char api_name[], int8_t rslt) {
+  if (rslt != BMA4_OK) {
+    ESP_LOGI("BMA4_I2C", "%s\t", api_name);
+    if (rslt == BMA4_E_NULL_PTR) {
+      ESP_LOGI("BMA4_I2C", "Error [%d] : Null pointer\r\n", rslt);
+    } else if (rslt == BMA4_E_COM_FAIL) {
+      ESP_LOGI("BMA4_I2C", "Error [%d] : Communication failure\r\n", rslt);
+    } else if (rslt == BMA4_E_CONFIG_STREAM_ERROR) {
+      ESP_LOGI("BMA4_I2C", "Error [%d] : Invalid configuration stream\r\n",
+               rslt);
+    } else if (rslt == BMA4_E_SELF_TEST_FAIL) {
+      ESP_LOGI("BMA4_I2C", "Error [%d] : Self test failed\r\n", rslt);
+    } else if (rslt == BMA4_E_INVALID_SENSOR) {
+      ESP_LOGI("BMA4_I2C", "Error [%d] : Device not found\r\n", rslt);
+    } else if (rslt == BMA4_E_OUT_OF_RANGE) {
+      ESP_LOGI("BMA4_I2C", "Error [%d] : Out of Range\r\n", rslt);
+    } else if (rslt == BMA4_E_AVG_MODE_INVALID_CONF) {
+      ESP_LOGI("BMA4_I2C",
+               "Error [%d] : Invalid bandwidth and ODR combination in Accel "
+               "Averaging mode\r\n",
+               rslt);
+    } else {
+      /* For more error codes refer "*_defs.h" */
+      ESP_LOGI("BMA4_I2C", "Error [%d] : Unknown error code\r\n", rslt);
+    }
+  }
+}
+
+void init_i2c() {
+  i2c_master_bus_config_t i2c_mst_config = {
+      .clk_source = I2C_CLK_SRC_DEFAULT,
+      .i2c_port = I2C_PORT,
+      .scl_io_num = I2C_MASTER_SCL_IO,
+      .sda_io_num = I2C_MASTER_SDA_IO,
+      .glitch_ignore_cnt = 7,
+      //.flags.enable_internal_pullup = true,
+  };
+
+  ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_mst_config, &bus_handle));
+}
+
+void read_sensor_task(void *params) {
+  int8_t ret;
+  struct bma4_accel sens_data = {0};
+
+  while (1) {
+    ret = bma4_read_accel_xyz(&sens_data, &bma456_struct);
+    bma4_error_codes_print_result("bma4_read_accel_xyz", ret);
+
+    ESP_LOGI("ACC", "X: %d, Y: %d, Z: %d", sens_data.x, sens_data.y,
+             sens_data.z);
+
+    if (interrupt_status) {
+      ESP_LOGI("INTERRUPT", "Da war der Interrupt resetting");
+      interrupt_status = 0;
+      ret = bma456h_read_int_status(&int_status, &bma456_struct);
+      bma4_error_codes_print_result("bma456w_step_counter_output status", ret);
+
+      int8_t rslt;
+      struct bma456h_out_state tap_out = {0};
+
+      rslt = bma456h_output_state(&tap_out, &bma456_struct);
+
+      if (BMA4_OK == rslt) {
+        /* Enters only if the obtained interrupt is single-tap */
+        if (tap_out.single_tap) {
+          ESP_LOGI("INTERRUPT", "Single Tap interrupt occurred\n");
+        }
+        /* Enters only if the obtained interrupt is double-tap */
+        else if (tap_out.double_tap) {
+          ESP_LOGI("INTERRUPT", "Double Tap interrupt occurred\n");
+        }
+        /* Enters only if the obtained interrupt is triple-tap */
+        else if (tap_out.triple_tap) {
+          ESP_LOGI("INTERRUPT", "Triple Tap interrupt occurred\n");
+        }
+      }
+    }
+
+    // ESP_LOGI("i2c", "X:%d, Y%d, Z%d", sens_data.x, sens_data.y, sens_data.z);
+    vTaskDelay(pdMS_TO_TICKS(100));
+  }
+}
+
+void init_bma456() {
+  i2c_device_config_t dev_cfg_bma456 = {
+      .dev_addr_length = I2C_ADDR_BIT_LEN_7,
+      .device_address = BMA456_ADDRESS,
+      .scl_speed_hz = 100000,
+  };
+
+  ESP_ERROR_CHECK(i2c_master_bus_add_device(bus_handle, &dev_cfg_bma456,
+                                            &bma456_dev_handle));
+
+  bma456_struct.intf = BMA4_I2C_INTF;
+  bma456_struct.bus_read = bma4_i2c_read;
+  bma456_struct.bus_write = bma4_i2c_write;
+  bma456_struct.delay_us = bma4_delay_us;
+  bma456_struct.read_write_len = BMA4_READ_WRITE_LEN;
+  bma456_struct.intf_ptr = &bma456_dev_handle;
+
+  int8_t ret;
+  bma456_struct.chip_id = 0;
+
+  ret = bma456h_init(&bma456_struct);
+  bma4_error_codes_print_result("I2C Init", ret);
+
+  ESP_LOGI("I2C", "Chip Init ausgelesene CHIP ID %d", bma456_struct.chip_id);
+
+  ret = bma4_soft_reset(&bma456_struct);
+  bma4_error_codes_print_result("bma4_soft_reset", ret);
+  vTaskDelay(pdMS_TO_TICKS(20)); // Wartezeit nach Reset
+
+  ret = bma4_set_advance_power_save(BMA4_DISABLE, &bma456_struct);
+  bma4_error_codes_print_result("bma4_set_advance_power_save", ret);
+  vTaskDelay(pdMS_TO_TICKS(10));
+
+  ESP_LOGI("I2C", "Config SIZE %d", bma456_struct.config_size);
+  ESP_LOGI("I2C", "Config Pointer %p", bma456_struct.config_file_ptr);
+
+  ESP_LOGI("I2C", "Starte Config-File Upload...");
+  ret = bma456h_write_config_file(&bma456_struct);
+  bma4_error_codes_print_result("bma4_write_config_file", ret);
+
+  struct bma4_accel_config accel_config;
+  bma4_get_accel_config(&accel_config, &bma456_struct);
+  accel_config.range = BMA4_ACCEL_RANGE_2G;
+  ret = bma4_set_accel_config(&accel_config, &bma456_struct);
+  bma4_error_codes_print_result("bma4_set_accel_config status", ret);
+
+  /* Enable the accelerometer */
+  ret = bma4_set_accel_enable(BMA4_ENABLE, &bma456_struct);
+  bma4_error_codes_print_result("bma4_set_accel_enable status", ret);
+
+  struct bma456h_multitap_settings tap_settings = {0};
+  ret = bma456h_tap_get_parameter(&tap_settings, &bma456_struct);
+  bma4_error_codes_print_result("bma456h_tap_get_parameter status", ret);
+  tap_settings.tap_sens_thres = 0;
+  ret = bma456h_tap_set_parameter(&tap_settings, &bma456_struct);
+  bma4_error_codes_print_result("bma456h_tap_set_parameter status", ret);
+
+  ret = bma456h_feature_enable(
+      (BMA456H_SINGLE_TAP_EN | BMA456H_DOUBLE_TAP_EN | BMA456H_TRIPLE_TAP_EN),
+      BMA4_ENABLE, &bma456_struct);
+  bma4_error_codes_print_result("bma456w_feature_enable status", ret);
+
+  /* Setting watermark level 1, the output step resolution is 20 steps.
+   * Eg: 1 means, 1 * 20 = 20. Every 20 steps once output triggers
+   */
+  ret = bma456h_step_counter_set_watermark(1, &bma456_struct);
+  bma4_error_codes_print_result("bma456w_step_counter_set_watermark status",
+                                ret);
+
+  /* Hardware interrupt configuration */
+  int_line = BMA4_INTR2_MAP;
+
+  ret = bma4_get_int_pin_config(&pin_config, int_line, &bma456_struct);
+  bma4_error_codes_print_result("bma4_get_int_pin_config status", ret);
+
+  ret = bma456h_map_interrupt(int_line, BMA456H_TAP_OUT_INT, BMA4_ENABLE,
+                              &bma456_struct);
+
+  bma4_error_codes_print_result("bma456w_map_interrupt status", ret);
+
+  pin_config.edge_ctrl = BMA4_EDGE_TRIGGER;
+  pin_config.output_en = BMA4_OUTPUT_ENABLE;
+  pin_config.lvl = BMA4_ACTIVE_HIGH;
+  pin_config.od = BMA4_PUSH_PULL;
+  pin_config.input_en = BMA4_INPUT_DISABLE;
+
+  ret = bma4_set_int_pin_config(&pin_config, int_line, &bma456_struct);
+  bma4_error_codes_print_result("bma4_set_int_pin_config status", ret);
+
+  gpio_reset_pin(BMA456W_INT_PIN);
+  gpio_set_direction(BMA456W_INT_PIN, GPIO_MODE_INPUT);
+  gpio_set_pull_mode(BMA456W_INT_PIN, GPIO_PULLDOWN_ONLY);
+  gpio_set_intr_type(BMA456W_INT_PIN, GPIO_INTR_POSEDGE);
+  gpio_intr_enable(BMA456W_INT_PIN);
+
+  gpio_install_isr_service(0);
+  gpio_isr_handler_add(BMA456W_INT_PIN, interrupt_callback,
+                       (void *)BMA456W_INT_PIN);
+
+  xTaskCreate(read_sensor_task, "READ_SENSOR", 4096, NULL, 1, NULL);
+}
+
+void init_i2c_with_all_devices() {
+  init_i2c();
+  init_bma456();
+}

main/i2c.h

@@ -0,0 +1,8 @@
+#define I2C_PORT 0
+#define I2C_MASTER_SCL_IO 5
+#define I2C_MASTER_SDA_IO 6
+#define BMA456_ADDRESS 0x18
+
+void init_i2c();
+void init_bma456();
+void init_i2c_with_all_devices();

main/main.c

@@ -1,7 +1,15 @@
 #include "client_handler.h"
 #include "driver/gpio.h"
 #include "driver/uart.h"
+#include "esp_app_desc.h"
+#include "esp_app_format.h"
+#include "esp_err.h"
+#include "esp_flash_partitions.h"
+#include "esp_image_format.h"
 #include "esp_log.h"
+#include "esp_log_buffer.h"
+#include "esp_ota_ops.h"
+#include "esp_partition.h"
 #include "esp_phy_init.h"
 #include "esp_rom_gpio.h"
 #include "esp_timer.h"
@@ -10,34 +18,102 @@
 #include "hal/uart_types.h"
 #include "message_handler.h"
 #include "message_parser.h"
+#include "nvs.h"
 #include "nvs_flash.h"
 
 #include "communication_handler.h"
 #include "main.h"
+#include "ota_update.h"
 #include "uart_handler.h"
+#include <math.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
+#include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
 
 #include "message_builder.h"
+#include "uart_msg_ids.h"
+
+#include "i2c.h"
 
 static const char *TAG = "ALOX - MAIN";
 static const uint16_t version = 0x0001;
 static uint8_t send_message_buffer[1024];
-static uint8_t send_message_payload_buffer[512 - 4];
+static uint8_t send_message_payload_buffer[512];
+uint32_t g_uart_firmware_total_size = 0;
 
 static MessageBrokerTaskParams_t broker_task_params;
+static MasterOTA_TaskParams_t master_ota_task_params;
+static ESP_MessageBrokerTaskParams_t esp_broker_task_params;
 
 ClientList clientList = {.Clients = {{0}}, .ClientCount = 0};
 
+size_t build_ClientInfoPart(uint8_t clientid, float_t lagex, float_t lagey,
+                            int32_t bitmask, uint8_t *outputArray,
+                            size_t outputArrayOffset, size_t outputArraySize) {
+
+  size_t offset = outputArrayOffset;
+  memcpy(&outputArray[offset], &clientid, sizeof(clientid));
+  offset += sizeof(clientid);
+
+  // lagex (typischerweise 4 Bytes)
+  memcpy(&outputArray[offset], &lagex, sizeof(lagex));
+  offset += sizeof(lagex);
+
+  // lagey (typischerweise 4 Bytes)
+  memcpy(&outputArray[offset], &lagey, sizeof(lagey));
+  offset += sizeof(lagey);
+
+  // bitmask (4 Bytes)
+  memcpy(&outputArray[offset], &bitmask, sizeof(bitmask));
+  offset += sizeof(bitmask);
+
+  return offset - outputArrayOffset;
+}
+
+void fakeDataCallback(uint8_t msgid, const uint8_t *payload, size_t payload_len,
+                      uint8_t *send_payload_buffer,
+                      size_t send_payload_buffer_size, uint8_t *send_buffer,
+                      size_t send_buffer_size) {
+
+  uint8_t seed = payload[1];
+  ESP_LOGI(TAG, "Sending Fake Client Infos with seed %d", seed);
+  srand(seed);
+
+  size_t offset = 1;
+  send_payload_buffer[0] = 3; // Client Count
+  offset +=
+      build_ClientInfoPart(1, rand() * 1.0, rand() * 1.0, rand() * 1,
+                           send_payload_buffer, 1, send_payload_buffer_size);
+  offset += build_ClientInfoPart(2, rand() * 2.0, rand() * 2.0, rand() * 2,
+                                 send_payload_buffer, offset,
+                                 send_payload_buffer_size);
+  offset += build_ClientInfoPart(3, rand() * 3.0, rand() * 3.0, rand() * 3,
+                                 send_payload_buffer, offset,
+                                 send_payload_buffer_size);
+
+  int len = build_message(UART_CLIENT_INPUT, send_payload_buffer, offset,
+                          send_buffer, send_buffer_size);
+
+  if (len < 0) {
+    ESP_LOGE(TAG,
+             "Error Building UART Message: payload_len, %d, sendbuffer_size: "
+             "%d, mes_len(error): %d",
+             payload_len, send_buffer_size, len);
+    return;
+  }
+
+  uart_write_bytes(MASTER_UART, send_buffer, len);
+}
+
 void echoCallback(uint8_t msgid, const uint8_t *payload, size_t payload_len,
                   uint8_t *send_payload_buffer, size_t send_payload_buffer_size,
                   uint8_t *send_buffer, size_t send_buffer_size) {
   ESP_LOGI(TAG, "Echo command 0x01...");
-  int len =
+  int len = build_message(UART_ECHO, payload, payload_len, send_buffer,
-      build_message(0x01, payload, payload_len, send_buffer, send_buffer_size);
+                          send_buffer_size);
   if (len < 0) {
     ESP_LOGE(TAG,
              "Error Building UART Message: payload_len, %d, sendbuffer_size: "
@@ -67,7 +143,7 @@ void versionCallback(uint8_t msgid, const uint8_t *payload, size_t payload_len,
   send_payload_buffer[1] = (uint8_t)((version >> 8) & 0xFF);
   memcpy(&send_payload_buffer[2], &BUILD_GIT_HASH, git_build_hash_len);
 
-  int len = build_message(0x02, send_payload_buffer, needed_buffer_size,
+  int len = build_message(UART_VERSION, send_payload_buffer, needed_buffer_size,
                           send_buffer, send_buffer_size);
   if (len < 0) {
     ESP_LOGE(TAG,
@@ -84,7 +160,7 @@ void clientInfoCallback(uint8_t msgid, const uint8_t *payload,
                         size_t send_payload_buffer_size, uint8_t *send_buffer,
                         size_t send_buffer_size) {
   ESP_LOGI(TAG, "Client Info Command 0x03...");
-  static uint8_t entryLength = 17;
+  static uint8_t entryLength = 19;
   uint8_t needed_buffer_size = 1 + entryLength * clientList.ClientCount;
 
   if (send_payload_buffer_size < needed_buffer_size) {
@@ -96,27 +172,9 @@ void clientInfoCallback(uint8_t msgid, const uint8_t *payload,
   send_payload_buffer[0] = clientList.ClientCount;
   uint8_t offsetMult = 0;
 
-  uint8_t used_slots = 0;
   for (int i = 0; i < MAX_CLIENTS; i++) {
     if (clientList.Clients[i].slotIsUsed) {
-      used_slots++;
-    }
-  }
-
-  uint8_t loop_sanity_counter = 0;
-
-  for (int i = 0; i < MAX_CLIENTS; i++) {
-    if (clientList.Clients[i].slotIsUsed) {
-      loop_sanity_counter++;
-      if (loop_sanity_counter > clientList.ClientCount) {
-        ESP_LOGE("SPECIAL",
-                 "ERROR SANITY CHECK FAILED: loop_sanity_count: %d, "
-                 "client_count: %d",
-                 loop_sanity_counter, clientList.ClientCount);
-      }
       size_t offset = 1 + (entryLength * offsetMult++);
-
-      ESP_LOGE("SPECIAL", "OFFSET %d", offset);
       send_payload_buffer[offset] = i;
       send_payload_buffer[offset + 1] = clientList.Clients[i].isAvailable;
       send_payload_buffer[offset + 2] = clientList.Clients[i].slotIsUsed;
@@ -126,11 +184,14 @@ void clientInfoCallback(uint8_t msgid, const uint8_t *payload,
              4);
       memcpy(&send_payload_buffer[offset + 13],
              &clientList.Clients[i].lastSuccessfullPing, 4);
+      memcpy(&send_payload_buffer[offset + 17],
+             &clientList.Clients[i].clientVersion, 2);
     }
   }
 
-  int len = build_message(0x04, send_payload_buffer, needed_buffer_size,
+  int len = build_message(UART_CLIENT_INFO, send_payload_buffer,
-                          send_buffer, send_buffer_size);
+                          needed_buffer_size, send_buffer, send_buffer_size);
+
   if (len < 0) {
     ESP_LOGE(TAG,
              "Error Building UART Message: payload_len, %d, sendbuffer_size: "
@@ -141,6 +202,69 @@ void clientInfoCallback(uint8_t msgid, const uint8_t *payload,
   uart_write_bytes(MASTER_UART, send_buffer, len);
 }
 
+bool g_ota_in_progress = false;
+
+void ota_monitor_task(void *param) {
+  const TickType_t timeout = pdMS_TO_TICKS(10000); // 10 seconds
+
+  while (g_ota_in_progress) {
+    bool all_done = true;
+    for (int i = 0; i < MAX_CLIENTS; i++) {
+      if (clientList.Clients[i].slotIsUsed) {
+        if (clientList.Clients[i].ota_status != OTA_SUCCESS &&
+            clientList.Clients[i].ota_status != OTA_FAILED) {
+          all_done = false;
+
+          if ((xTaskGetTickCount() - clientList.Clients[i].last_seen) >
+              timeout) {
+            ESP_LOGE(TAG, "Client %d timed out", i);
+            clientList.Clients[i].ota_status = OTA_FAILED;
+          }
+        }
+      }
+    }
+
+    if (all_done) {
+      g_ota_in_progress = false;
+    }
+
+    vTaskDelay(pdMS_TO_TICKS(1000));
+  }
+
+  ESP_LOGI(TAG, "OTA Operation Finished.");
+  for (int i = 0; i < MAX_CLIENTS; i++) {
+    if (clientList.Clients[i].slotIsUsed) {
+      ESP_LOGI(TAG, "Client %d [MAC: " MACSTR "]: %s, Resent Chunks: %d", i,
+               MAC2STR(clientList.Clients[i].macAddr),
+               clientList.Clients[i].ota_status == OTA_SUCCESS ? "SUCCESS"
+                                                               : "FAILED",
+               clientList.Clients[i].resent_chunks_counter);
+    }
+  }
+
+  vTaskDelete(NULL);
+}
+
+void send_client_ota_start_message(uint8_t clientID, uint32_t app_size) {
+  BaseMessage message = {};
+  OTA_PREPARE_FOR_UPDATE_Payload ota_payload = {
+      .total_size = app_size,
+  };
+  message = MessageBuilder(OTA_PREPARE_FOR_UPDATE,
+                           *(PayloadUnion *)&ota_payload, sizeof(ota_payload));
+
+  esp_err_t err = esp_now_send(clientList.Clients[clientID].macAddr,
+                               (uint8_t *)&message, sizeof(BaseMessage));
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "Could not send OTA PREPARE FOR UPDATE to " MACSTR ", %s",
+             MAC2STR(clientList.Clients[clientID].macAddr),
+             esp_err_to_name(err));
+  } else {
+    ESP_LOGI(TAG, "Sent OTA PREPARE FOR UPDATE to " MACSTR,
+             MAC2STR(clientList.Clients[clientID].macAddr));
+  }
+}
+
 void app_main(void) {
   ESP_LOGI(TAG, "Starting Alox Powerpod Version %d Build: %s", version,
            BUILD_GIT_HASH);
@@ -153,12 +277,10 @@ void app_main(void) {
   }
   ESP_ERROR_CHECK(ret);
 
-  // GPIO-Pin für Moduserkennung
   gpio_reset_pin(MASTER_MODE_PIN);
   gpio_set_direction(MASTER_MODE_PIN, GPIO_MODE_INPUT);
   bool isMaster = (gpio_get_level(MASTER_MODE_PIN) == 0);
 
-  // ESP-NOW Initialisieren
   ESP_ERROR_CHECK(esp_netif_init());
   ESP_ERROR_CHECK(esp_event_loop_create_default());
   wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
@@ -166,8 +288,7 @@ void app_main(void) {
   wifi_config_t wifi_config = {
       .sta =
           {
-              .channel = 1, // Kanal 1, stelle sicher, dass alle Geräte
+              .channel = 1,
-                            // denselben Kanal verwenden
           },
   };
   ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
@@ -181,25 +302,58 @@ void app_main(void) {
     ESP_ERROR_CHECK(esp_now_register_recv_cb(client_receive_callback));
   }
 
-  init_com(&clientList);
+  ret = init_com(&clientList, 1);
+  if (ret < 0) {
+    ESP_LOGE(TAG, "Could not Init ESP NOW Communication!");
+  }
+
+  const esp_partition_t *running = esp_ota_get_running_partition();
+  ESP_LOGI(TAG, "OTA: Running Partition: %s", running->label);
+
+  esp_ota_img_states_t ota_state;
+  if (esp_ota_get_state_partition(running, &ota_state) == ESP_OK) {
+    if (ota_state == ESP_OTA_IMG_PENDING_VERIFY) {
+      bool diagnostic_is_ok = true; // TODO build in valid diagnostics
+      if (diagnostic_is_ok) {
+        esp_ota_mark_app_valid_cancel_rollback();
+      } else {
+        // esp_ota_mark_app_invalid_rollback(); Put this function at the start
+        // so when the esp crashes it can rollback
+        esp_ota_mark_app_invalid_rollback_and_reboot();
+      }
+    }
+  }
+
+  const esp_partition_t *next_ota_partition =
+      esp_ota_get_next_update_partition(NULL);
+  int app_size = get_app_size(next_ota_partition);
+  ESP_LOGE(TAG, "App Size in Other Partition %d", app_size);
+
+  QueueHandle_t espnow_message_queue =
+      xQueueCreate(10, sizeof(ESPNOW_MessageInfo));
+  ESP_InitMessageBroker(espnow_message_queue);
+
+  esp_broker_task_params.message_queue = espnow_message_queue;
+  xTaskCreate(ESP_MessageBrokerTask, "espnow_message_broker_task", 4096,
+              (void *)&esp_broker_task_params, 4, NULL);
+
+  init_ota();
 
-  // Tasks starten basierend auf Master/Client
   if (isMaster) {
     ESP_LOGI(TAG, "Started in Mastermode");
+    ESPNOW_RegisterMasterCallbacks();
+    ESPNOW_RegisterOTAMaster();
+
     add_peer(broadcast_address);
     xTaskCreate(master_broadcast_task, "MasterBroadcast", 4096, NULL, 1, NULL);
-    //  xTaskCreate(master_ping_task, "MasterPing", 4096, NULL, 1, NULL);
     xTaskCreate(master_broadcast_ping, "MasterBroadcastPing", 4096, NULL, 1,
                 NULL);
-    // xTaskCreate(client_monitor_task, "MonitorClientTask", 4096, NULL, 1,
-    // NULL);
 
     QueueHandle_t parsed_message_queue =
         xQueueCreate(10, sizeof(ParsedMessage_t));
     init_uart(parsed_message_queue);
     InitMessageBroker();
 
-    // Initialisiere die Parameterstruktur
     broker_task_params.message_queue = parsed_message_queue;
     broker_task_params.send_buffer = send_message_buffer;
     broker_task_params.send_buffer_size = sizeof(send_message_buffer);
@@ -207,19 +361,26 @@ void app_main(void) {
     broker_task_params.payload_buffer_size =
         sizeof(send_message_payload_buffer);
 
-    xTaskCreate(MessageBrokerTask, "message_handler_task", 4096,
+    xTaskCreate(MessageBrokerTask, "MessageHandler", 4096,
                 (void *)&broker_task_params, 5, NULL);
 
-    RegisterCallback(0x01, echoCallback);
+    master_ota_task_params.client_list = &clientList;
-    RegisterCallback(0x02, versionCallback);
+    xTaskCreate(MasterOTATask, "MasterOTATask", 4096,
-    RegisterCallback(0x03, clientInfoCallback);
+                (void *)&master_ota_task_params, 4, NULL);
+
+    RegisterCallback(UART_ECHO, echoCallback);
+    RegisterCallback(UART_VERSION, versionCallback);
+    RegisterCallback(UART_CLIENT_INFO, clientInfoCallback);
+    RegisterCallback(UART_CLIENT_INPUT, fakeDataCallback);
+    RegisterCallback(UART_OTA_START_ESPNOW, start_ota_update_espnow);
+    RegisterUART_OTAFunctions();
+
+    // init_i2c_with_all_devices();
 
-    // xTaskCreate(uart_status_task, "MasterUartStatusTask", 4096, NULL, 1,
-    // NULL); xTaskCreate(SendClientInfoTask, "SendCientInfo", 4096, NULL, 1,
-    // NULL);
   } else {
     ESP_LOGI(TAG, "Started in Slavemode");
-    xTaskCreate(client_data_sending_task, "ClientDataSending", 4096, NULL, 1,
+    ESPNOW_RegisterSlaveCallbacks();
-                NULL);
+    xTaskCreate(slave_ota_task, "SlaveOTATask", 4096, NULL, 4, NULL);
+    ESPNOW_RegisterOTASlave();
   }
 }

main/main.h

@@ -19,5 +19,4 @@
 #elif CONFIG_IDF_TARGET_ESP32C3
 #define MASTER_MODE_PIN GPIO_NUM_0 // Jumper-Erkennungspin
 #endif
-
 #endif

main/message_builder.c

@@ -20,8 +20,8 @@ bool add_byte_with_length_check(uint8_t byte, size_t write_index, uint8_t *data,
 int build_message(uint8_t msgid, const uint8_t *payload, size_t payload_len,
                   uint8_t *msg_buffer, size_t msg_buffer_size) {
 
-  ESP_LOGE("BM", "payload_len %d, msg_buffer_size %d", payload_len + 4,
+  //ESP_LOGE("BM", "payload_len %d, msg_buffer_size %d", payload_len + 4,
-           msg_buffer_size);
+  //         msg_buffer_size);
   if (payload_len + 4 > msg_buffer_size) {
     return PayloadBiggerThenBuffer;
   }
@@ -75,6 +75,5 @@ int build_message(uint8_t msgid, const uint8_t *payload, size_t payload_len,
   msg_buffer[write_index++] = checksum;
   msg_buffer[write_index++] = EndByte;
 
-  ESP_LOGE("BM", "MESSAGE FERTIG GEBAUT");
   return write_index;
 }

main/message_handler.c

@@ -13,6 +13,7 @@ void InitMessageBroker() {
 }
 
 void RegisterCallback(uint8_t msgid, RegisterFunctionCallback callback) {
+  ESP_LOGI(TAG, "Registerd Uart Callback for % X", msgid);
   mr.FunctionList[mr.num_direct_callbacks].MSGID = msgid;
   mr.FunctionList[mr.num_direct_callbacks].callback = callback;
   mr.num_direct_callbacks++;
@@ -46,11 +47,13 @@ void MessageBrokerTask(void *param) {
 
   while (1) {
     if (xQueueReceive(msg_queue, &received_msg, portMAX_DELAY)) {
-      ESP_LOGI(TAG, "Received message from queue: MSGID=0x%02X, Length=%u",
+      // ESP_LOGI(TAG, "Received message from queue: MSGID=0x%02X, Length=%u",
-               received_msg.msgid, received_msg.payload_len);
+      //          received_msg.msgid, received_msg.payload_len);
 
       for (int i = 0; i < mr.num_direct_callbacks; i++) {
+        //ESP_LOGI(TAG, "Searching CALLBACK for %d", received_msg.msgid);
         if (mr.FunctionList[i].MSGID == received_msg.msgid) {
+          //ESP_LOGI(TAG, "FOUND CALLBACK");
           mr.FunctionList[i].callback(
               received_msg.msgid, received_msg.data, received_msg.payload_len,
               send_payload_buffer, send_payload_buffer_size,

main/message_parser.h

@@ -4,7 +4,7 @@
 #include <stddef.h>
 #include <stdint.h>
 
-#define MAX_MESSAGE_PAYLOAD_LENGTH 128
+#define MAX_MESSAGE_PAYLOAD_LENGTH 512
 #define MAX_TOTAL_CONTENT_LENGTH (MAX_MESSAGE_PAYLOAD_LENGTH + 1)
 
 enum ParserState {
@@ -33,7 +33,7 @@ struct MessageReceive {
   enum ParserError error;
   uint8_t messageid;
   uint8_t message[MAX_MESSAGE_PAYLOAD_LENGTH];
-  uint8_t index;
+  uint16_t index;
   uint8_t checksum;
 };
 

main/message_structs.h

@@ -0,0 +1,124 @@
+#ifndef MESSAGE_STRUCTS_H
+#define MESSAGE_STRUCTS_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
+#define MACSTR "%02X:%02X:%02X:%02X:%02X:%02X"
+
+typedef enum {
+  OTA_PREPARE_FOR_UPDATE,
+  OTA_PREPARE_ACKNOWLEDGED,
+  OTA_READY_TO_RECEIVE,
+  OTA_CHUNK,
+  OTA_REQUEST_BLOCK_STATUS,
+  OTA_BLOCK_STATUS_REPORT,
+  OTA_COMMIT_BLOCK,
+  OTA_BLOCK_COMMITTED,
+  OTA_FINISH_UPDATE,
+  OTA_UPDATE_STATUS,
+  OTA_UPDATE_SLAVE_ACKED,
+  MASTER_READY_TO_SEND_CHUNKS,
+  StatusPage,
+  GetStatusPage,
+  ConfigPage,
+  PingPage,
+  BroadCastPage,
+  RegisterPage,
+} CommandPages;
+
+typedef struct __attribute__((packed)) {
+  uint32_t total_size;
+  uint32_t block_size;
+} OTA_PREPARE_FOR_UPDATE_Payload;
+
+typedef struct __attribute__((packed)) {
+  // Empty
+} OTA_PREPARE_ACKNOWLEDGED_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint8_t status; // 0 = READY, 1 = ERROR
+} OTA_READY_TO_RECEIVE_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint16_t block_id;
+  uint8_t chunk_id;
+  uint8_t data_len;
+  uint8_t data[200];
+} OTA_CHUNK_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint16_t block_id;
+} OTA_REQUEST_BLOCK_STATUS_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint16_t block_id;
+  uint32_t chunk_bitmask;
+} OTA_BLOCK_STATUS_REPORT_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint16_t block_id;
+} OTA_COMMIT_BLOCK_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint16_t block_id;
+} OTA_BLOCK_COMMITTED_Payload;
+
+typedef struct __attribute__((packed)) {
+  // Empty
+} OTA_FINISH_UPDATE_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint8_t status; // 0 = SUCCESS, 1 = FAILED
+} OTA_UPDATE_STATUS_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint16_t current_block_id;
+  uint16_t update_buffer_write_index;
+  uint32_t update_size;
+  uint16_t sequenz_counter; // how often the update buffer gets written
+  uint8_t status;           // 0 = SUCCESS, 1 = FAILED
+} OTA_UPDATE_ACK_Payload;
+
+typedef struct __attribute__((packed)) {
+  uint16_t version; // software version
+  uint8_t runningPartition;
+  uint8_t status;
+  uint32_t uptime;
+} StatusPayload;
+
+typedef struct __attribute__((packed)) {
+} GetStatusPayload;
+
+typedef struct __attribute__((packed)) {
+  uint8_t timeslot;
+} ConfigPayload;
+
+typedef struct __attribute__((packed)) {
+  uint32_t timestamp;
+} PingPayload;
+
+typedef struct __attribute__((packed)) {
+} BroadCastPayload;
+
+typedef struct __attribute__((packed)) {
+  bool familierClient;
+} RegisterPayload;
+
+// TODO: Check checksum fields
+typedef struct __attribute__((packed)) {
+  uint16_t length;  // length of complete firmware
+  uint8_t checksum; // checksum of firmware
+} FirmwarePrepPayload;
+
+// TODO: Check checksum fields
+typedef struct __attribute__((packed)) {
+  uint8_t length;
+  uint8_t checksum;
+  uint32_t address;
+  uint8_t payload[240]; // TODO: need a way to figure out a safe value for this
+} FirmwarePayload;
+
+#endif // MESSAGE_STRUCTS_H

main/ota_update.c

@@ -0,0 +1,678 @@
+#include "ota_update.h"
+#include "client_handler.h"
+#include "communication_handler.h"
+#include "driver/uart.h"
+#include "esp_app_format.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "esp_log_buffer.h"
+#include "esp_now.h"
+#include "esp_ota_ops.h"
+#include "esp_partition.h"
+#include "esp_system.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/queue.h"
+#include "freertos/task.h"
+#include "message_builder.h"
+#include "message_handler.h"
+#include "message_structs.h"
+#include "uart_handler.h"
+#include "uart_msg_ids.h"
+#include <stdbool.h>
+#include <stddef.h>
+#include <string.h>
+
+static const char *TAG = "ALOX - OTA";
+
+static QueueHandle_t ota_task_queue = NULL;
+
+static esp_ota_handle_t update_handle = 0;
+static uint8_t update_buffer[UPDATE_BUFFER_SIZE];
+static uint8_t update_buffer_chunk[250];
+static uint8_t update_buffer_chunk_len;
+static uint32_t chunk_bitmask;
+static uint16_t current_block_id;
+static uint16_t update_buffer_write_index;
+static uint32_t update_size;
+static uint16_t sequenz_counter; // how often the update buffer gets written
+static esp_partition_t partition_to_read_update_from;
+static uint32_t partition_to_read_from_read_index;
+static ClientList *client_list;
+static bool all_chunks_send;
+static bool finished;
+
+uint32_t get_app_size(const esp_partition_t *app_size_partition) {
+  esp_app_desc_t app_desc;
+  esp_ota_get_partition_description(app_size_partition, &app_desc);
+
+  esp_image_header_t header;
+
+  esp_partition_read(app_size_partition, 0, &header, sizeof(header));
+  if (header.magic != ESP_IMAGE_HEADER_MAGIC) {
+    ESP_LOGE(TAG, "KEIN VALIDER HEADER");
+    return 0;
+  }
+
+  uint32_t data_len = sizeof(header);
+
+  for (int i = 0; i < header.segment_count; i++) {
+    esp_image_segment_header_t segment_header;
+    esp_partition_read(app_size_partition, data_len, &segment_header,
+                       sizeof(segment_header));
+    ESP_LOGI(TAG, "SEGMENT %d Address %d, Segment DataLen %d", i,
+             segment_header.load_addr, segment_header.data_len);
+    uint32_t padded_len = (segment_header.data_len + 3) & ~3;
+    data_len += padded_len + sizeof(segment_header);
+  }
+
+  data_len += 1;
+  data_len += 32;
+  uint32_t padding = (16 - (data_len % 16)) % 16;
+  data_len += padding;
+
+  return data_len;
+}
+
+int ota_send_finish(ClientList *client_list) {
+  // read flash and send data
+  BaseMessage replyMessage = {};
+  OTA_FINISH_UPDATE_Payload payload = {};
+
+  ESP_LOGI(TAG, "OTA SEND FINISH");
+
+  replyMessage = MessageBuilder(OTA_FINISH_UPDATE, *(PayloadUnion *)&payload,
+                                sizeof(payload));
+
+  for (int i = 0; i < MAX_CLIENTS; i++) {
+    if (client_list->Clients[i].slotIsUsed) {
+      if (client_list->Clients[i].ota_status == OTA_UPDATING) {
+        esp_now_send(client_list->Clients[i].macAddr, (uint8_t *)&replyMessage,
+                     sizeof(BaseMessage));
+        client_list->Clients[i].ota_status = OTA_AWAITING_ACK;
+      }
+    }
+  }
+  finished = true;
+  return 0;
+}
+
+int ota_send_next_update_chunk(ClientList *client_list) {
+  // read flash and send data
+  BaseMessage replyMessage = {};
+  OTA_CHUNK_Payload payload = {};
+
+  size_t actual_read = 200;
+  if (partition_to_read_from_read_index + actual_read > update_size) {
+    actual_read = update_size - partition_to_read_from_read_index;
+  }
+
+  esp_err_t err = esp_partition_read(&partition_to_read_update_from,
+                                     partition_to_read_from_read_index,
+                                     payload.data, actual_read);
+
+  if (actual_read < 200) {
+    ESP_LOG_BUFFER_HEX(TAG, payload.data, actual_read);
+  }
+
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "Could not read partition");
+  }
+
+  partition_to_read_from_read_index += actual_read;
+  payload.data_len = actual_read;
+
+  ESP_LOGI(TAG, "READ %d Bytes Sendig it to all Clients waiting", actual_read);
+  ESP_LOGI(TAG, "READ PARTITION AT %d Bytes MAX Bytes %d",
+           partition_to_read_from_read_index, update_size);
+
+  replyMessage =
+      MessageBuilder(OTA_CHUNK, *(PayloadUnion *)&payload, sizeof(payload));
+
+  for (int i = 0; i < MAX_CLIENTS; i++) {
+    if (client_list->Clients[i].slotIsUsed) {
+      if (client_list->Clients[i].ota_status == OTA_UPDATING) {
+        esp_now_send(client_list->Clients[i].macAddr, (uint8_t *)&replyMessage,
+                     sizeof(BaseMessage));
+        client_list->Clients[i].ota_status = OTA_AWAITING_ACK;
+      }
+    }
+  }
+
+  if (partition_to_read_from_read_index == update_size)
+    return 1; // last update chunk send now finish it!
+
+  return 0;
+}
+
+void MasterOTATask(void *pvParameter) {
+  ESP_LOGI(TAG, "master_ota_task started");
+  ota_task_queue_message_t msg;
+  MasterOTA_TaskParams_t task_params = *(MasterOTA_TaskParams_t *)pvParameter;
+  client_list = task_params.client_list;
+
+  while (1) {
+    if (xQueueReceive(ota_task_queue, &msg, portMAX_DELAY)) {
+      ESP_LOGI(TAG, "master ota_task received command: %d", msg.command);
+      BaseMessage replyMessage = {};
+
+      switch (msg.command) {
+      case OTA_SEND_SLAVES_PREPARE_MESSAGE: {
+      }
+      case OTA_SLAVE_WILL_PREPARE: {
+        int id = get_client_id(client_list, msg.mac_addr);
+        if (id < 0) {
+          // error
+          ESP_LOGE(TAG, "Error set OTA_PREPARE could not get client id");
+        }
+        // just wait
+        // mark client that it will wait
+        ESP_LOGI(TAG, "MASTER OTA TASK: Marking Client %d as OTA_PREPARING",
+                 id);
+        client_list->Clients[id].ota_status = OTA_PREPARING;
+        break;
+      }
+      case OTA_SLAVE_IS_PREPARED: {
+        // client is prepared check if all clients are preapred to send chunks
+        int id = get_client_id(client_list, msg.mac_addr);
+        if (id < 0) {
+          // error
+        }
+        if (client_list->Clients[id].ota_status == OTA_PREPARING) {
+          ESP_LOGI(TAG, "MASTER OTA TASK: Marking Client %d as OTA_UPDATING",
+                   id);
+          client_list->Clients[id].ota_status = OTA_UPDATING;
+        } else {
+          ESP_LOGE(TAG, "MASTER OTA TASK: Client this should not happend");
+        }
+
+        bool start = true;
+        // check if all clients are prepared
+        for (int i = 0; i < MAX_CLIENTS; i++) {
+          if (client_list->Clients[i].slotIsUsed) {
+            if (client_list->Clients[i].ota_status != OTA_UPDATING)
+              start = false;
+          }
+        }
+        if (start)
+          ota_send_next_update_chunk(client_list);
+        break;
+      }
+      case OTA_SLAVE_ACKED: {
+        // mark client as acked check if all clients acked to send next message
+        int id = get_client_id(client_list, msg.mac_addr);
+        if (id < 0) {
+          // error
+        }
+        if (client_list->Clients[id].ota_status == OTA_AWAITING_ACK) {
+          ESP_LOGI(TAG, "OTA_SLAVE_ACKED Client %d Status Update OTA_UPDATING",
+                   id);
+          client_list->Clients[id].ota_status = OTA_UPDATING;
+        } else {
+          ESP_LOGE(TAG, "OTA_SLAVE_ACKED Client %d Status Should not HAPPEND",
+                   id);
+        }
+
+        bool start = true;
+        // check if all clients are prepared
+        for (int i = 0; i < MAX_CLIENTS; i++) {
+          if (client_list->Clients[i].slotIsUsed) {
+            ESP_LOGI(TAG, "SLOT %d is USED", i);
+            if (client_list->Clients[i].ota_status != OTA_UPDATING)
+              start = false;
+          }
+        }
+        if (start) {
+          if (finished)
+            break; // dont need to send anything else
+          if (all_chunks_send) {
+            ota_send_finish(client_list);
+            break;
+          }
+          ESP_LOGE(TAG, "OTA_SLAVE_ACKED all clients have the status "
+                        "OTA_UPDATING SENDING NEXT CHUNK");
+          int end = ota_send_next_update_chunk(client_list);
+          if (end) {
+            all_chunks_send = true;
+          }
+        }
+
+        break;
+      }
+      case OTA_SLAVE_ERROR:
+        break;
+        // mark client as error
+      case OTA_MASTER_SEND_PREAPRE_REQUEST:
+        break;
+      case OTA_MASTER_SEND_CHUNK:
+        break;
+      case OTA_MASTER_SEND_FINISH:
+        break;
+      }
+    }
+  }
+}
+
+void slave_ota_task(void *pvParameter) {
+  ESP_LOGI(TAG, "slave_ota_task started");
+  ota_task_queue_message_t msg;
+  BaseMessage replyMessage = {};
+  while (1) {
+    if (xQueueReceive(ota_task_queue, &msg, portMAX_DELAY)) {
+      ESP_LOGI(TAG, "slave ota_task received command: %d", msg.command);
+
+      switch (msg.command) {
+      case OTA_SEND_SLAVES_PREPARE_MESSAGE:
+        break;
+      case OTA_SLAVE_WILL_PREPARE:
+        break;
+      case OTA_SLAVE_IS_PREPARED:
+        break;
+      case OTA_SLAVE_ACKED:
+        break;
+      case OTA_SLAVE_ERROR:
+        break;
+      case OTA_MASTER_SEND_PREAPRE_REQUEST: {
+        ESP_LOGE(TAG, "START PREAPRE CALL");
+        int part = prepare_ota_update(); // this part function is blocking
+        OTA_READY_TO_RECEIVE_Payload payload = {};
+        if (part < 0) {
+          payload.status = 1; // ERROR
+        } else {
+          payload.status = 0; // READY
+        }
+        ESP_LOGE(TAG, "PREPARED %d", part);
+
+        replyMessage = MessageBuilder(
+            OTA_READY_TO_RECEIVE, *(PayloadUnion *)&payload, sizeof(payload));
+        esp_now_send(msg.mac_addr, (uint8_t *)&replyMessage,
+                     sizeof(BaseMessage));
+        break;
+      }
+      case OTA_MASTER_SEND_CHUNK: {
+        // TODO: Move Update_buffer_chunk in normal update buffer no need for
+        // the extra step...
+        // TODO: at the moment its just so i can use the write_ota_update
+        // function unmodified
+        ESP_LOGI(TAG, "Master send Chunk writing it!");
+
+        write_ota_update(update_buffer_chunk_len, update_buffer_chunk);
+
+        ESP_LOGI(TAG, "AFTER WRITE_OTA_UPDATE!");
+
+        OTA_UPDATE_ACK_Payload payload = {
+            .update_buffer_write_index = update_buffer_write_index,
+            .current_block_id = current_block_id,
+            .sequenz_counter = sequenz_counter,
+            .status = 0,
+        };
+        replyMessage = MessageBuilder(
+            OTA_UPDATE_SLAVE_ACKED, *(PayloadUnion *)&payload, sizeof(payload));
+        esp_now_send(msg.mac_addr, (uint8_t *)&replyMessage,
+                     sizeof(BaseMessage));
+        break;
+      }
+      case OTA_MASTER_SEND_FINISH: {
+        esp_err_t err = end_ota_update();
+        int status = 0;
+        if (err != ESP_OK) {
+          status = 1; // TODO: Set real error
+        }
+
+        ESP_LOGI(TAG, "UPDATE FERTIG STATUS %d should be 0", status);
+
+        OTA_UPDATE_ACK_Payload payload = {
+            .update_buffer_write_index = update_buffer_write_index,
+            .current_block_id = current_block_id,
+            .sequenz_counter = sequenz_counter,
+            .status = status,
+        };
+        replyMessage = MessageBuilder(
+            OTA_UPDATE_SLAVE_ACKED, *(PayloadUnion *)&payload, sizeof(payload));
+        esp_now_send(msg.mac_addr, (uint8_t *)&replyMessage,
+                     sizeof(BaseMessage));
+        break;
+      }
+      }
+    }
+  }
+}
+
+void start_uart_update(uint8_t msgid, const uint8_t *payload,
+                       size_t payload_len, uint8_t *send_payload_buffer,
+                       size_t send_payload_buffer_size, uint8_t *send_buffer,
+                       size_t send_buffer_size) {
+  ESP_LOGI(TAG, "OTA Update Start Uart Command");
+
+  vTaskPrioritySet(NULL, 2);
+
+  update_size = 0;
+  update_buffer_write_index = 0;
+  sequenz_counter = 0;
+  all_chunks_send = false;
+  finished = false;
+
+  int part = prepare_ota_update();
+
+  uart_ota_start_t *start = (uart_ota_start_t *)send_payload_buffer;
+  start->partition = part & 0xff;
+
+  // TODO: Refine Errors
+  // Set error
+  if (part < 0) {
+    start->error = 0x01;
+  }
+
+  int send_payload_len = sizeof(uart_ota_start_t);
+  int len = build_message(UART_OTA_START, send_payload_buffer, send_payload_len,
+                          send_buffer, send_buffer_size);
+  if (len < 0) {
+    ESP_LOGE(TAG,
+             "Error Building UART Message: payload_len, %d, sendbuffer_size: "
+             "%d, mes_len(error): %d",
+             payload_len, send_buffer_size, len);
+    return;
+  }
+
+  uart_write_bytes(MASTER_UART, send_buffer, len);
+}
+
+esp_err_t write_ota_update(uint32_t write_len, const uint8_t *payload) {
+  // ESP_LOGI(TAG, "write_ota_update: write_len: %d", write_len);
+  // ESP_LOGI(TAG, "write_ota_update: update_buffer_write_index: %d",
+  // update_buffer_write_index);
+  if (update_buffer_write_index + write_len > UPDATE_BUFFER_SIZE) {
+    ESP_LOGI(TAG, "write_ota_update: schreib das update weg!");
+    esp_err_t err =
+        esp_ota_write(update_handle, update_buffer, update_buffer_write_index);
+    if (err != ESP_OK) {
+      return err;
+    }
+    update_buffer_write_index = 0;
+    sequenz_counter++;
+  }
+
+  memcpy(&update_buffer[update_buffer_write_index], payload, write_len);
+  update_buffer_write_index += write_len;
+  return ESP_OK;
+}
+
+void payload_uart_update(uint8_t msgid, const uint8_t *payload_data_from_uart,
+                         size_t total_payload_len_from_uart,
+                         uint8_t *send_payload_buffer,
+                         size_t send_payload_buffer_size, uint8_t *send_buffer,
+                         size_t send_buffer_size) {
+
+  const uint8_t *actual_firmware_data = payload_data_from_uart;
+
+  uint32_t write_len = total_payload_len_from_uart;
+
+  if (update_size == 0) {
+    ESP_LOGI(TAG, "First chunk received. write_len: %d", write_len);
+  }
+
+  update_size += write_len;
+
+  esp_err_t err = write_ota_update(write_len, actual_firmware_data);
+
+  uart_ota_ack_t *ack = (uart_ota_ack_t *)send_payload_buffer;
+  ack->sequence_counter = sequenz_counter;
+  ack->write_index = update_buffer_write_index;
+  ack->error = (err == ESP_OK) ? 0x00 : 0x01;
+
+  size_t send_payload_len = sizeof(uart_ota_ack_t);
+
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "GOT ESP ERROR WRITE OTA %d", err);
+  }
+
+  int len = build_message(UART_OTA_PAYLOAD, send_payload_buffer,
+                          send_payload_len, send_buffer, send_buffer_size);
+  if (len < 0) {
+    ESP_LOGE(TAG,
+             "Error Building UART Message: payload_len, %d, sendbuffer_size: "
+             "%d, mes_len(error): %d",
+             total_payload_len_from_uart, send_buffer_size, len);
+    return;
+  }
+
+  uart_write_bytes(MASTER_UART, send_buffer, len);
+}
+
+void end_uart_update(uint8_t msgid, const uint8_t *payload, size_t payload_len,
+                     uint8_t *send_payload_buffer,
+                     size_t send_payload_buffer_size, uint8_t *send_buffer,
+                     size_t send_buffer_size) {
+  ESP_LOGI(TAG, "OTA Update End Uart Command");
+
+  esp_err_t err = end_ota_update();
+
+  uart_ota_end_t *end = (uart_ota_end_t *)send_payload_buffer;
+  end->error = err & 0xff;
+  int send_payload_len = sizeof(uart_ota_end_t);
+
+  int len = build_message(UART_OTA_END, send_payload_buffer, send_payload_len,
+                          send_buffer, send_buffer_size);
+  if (len < 0) {
+    ESP_LOGE(TAG,
+             "Error Building UART Message: payload_len, %d, sendbuffer_size: "
+             "%d, mes_len(error): %d",
+             payload_len, send_buffer_size, len);
+    return;
+  }
+
+  uart_write_bytes(MASTER_UART, send_buffer, len);
+
+  vTaskPrioritySet(NULL, 1);
+}
+
+void init_ota() {
+  ota_task_queue = xQueueCreate(50, sizeof(ota_task_queue_message_t));
+}
+
+void RegisterUART_OTAFunctions() {
+  RegisterCallback(UART_OTA_START, start_uart_update);
+  RegisterCallback(UART_OTA_PAYLOAD, payload_uart_update);
+  RegisterCallback(UART_OTA_END, end_uart_update);
+}
+
+int prepare_ota_update() {
+  const esp_partition_t *running = esp_ota_get_running_partition();
+  ESP_LOGI(TAG, "Running Partition: %s", running->label);
+  const esp_partition_t *update_partition =
+      esp_ota_get_next_update_partition(NULL);
+  if (update_partition == NULL) {
+    ESP_LOGE(TAG, "Failed to find OTA partition.");
+    return -1;
+  }
+
+  ESP_LOGI(TAG, "Writing OTA Update to Partition: %s", update_partition->label);
+
+  esp_err_t err =
+      esp_ota_begin(update_partition, OTA_SIZE_UNKNOWN, &update_handle);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "esp_ota_begin failed (%s)", esp_err_to_name(err));
+    return -2;
+  }
+
+  if (update_partition->subtype == ESP_PARTITION_SUBTYPE_APP_OTA_0) {
+    return 0;
+  }
+
+  if (update_partition->subtype == ESP_PARTITION_SUBTYPE_APP_OTA_1) {
+    return 1;
+  }
+
+  // TODO: Unknow partition
+  return 2;
+}
+
+esp_err_t end_ota_update() {
+  if (update_buffer_write_index > 0) {
+    ESP_LOG_BUFFER_HEX(TAG, update_buffer, update_buffer_write_index);
+    esp_err_t err =
+        esp_ota_write(update_handle, update_buffer, update_buffer_write_index);
+    vTaskDelay(1);
+    if (err != ESP_OK) {
+      ESP_LOGE(TAG, "Error writing remaining data to partition: %s",
+               esp_err_to_name(err));
+      return err;
+    }
+  }
+
+  esp_err_t err = esp_ota_end(update_handle);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "esp_ota_end failed: %s", esp_err_to_name(err));
+    ESP_LOGI(TAG, "Total blocks written: %u, Last partial block size: %u",
+             sequenz_counter, update_buffer_write_index);
+    return err;
+  }
+
+  const esp_partition_t *update_partition =
+      esp_ota_get_next_update_partition(NULL);
+  err = esp_ota_set_boot_partition(update_partition);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "esp_ota_set_boot_partition failed: %s",
+             esp_err_to_name(err));
+  }
+  return err;
+}
+
+// Acknoledge that the slave should prepare for an update
+// Queues the Prepare Task beacuse it takes like 30 seconds
+void slave_Prep_Upgrade_Callback(const esp_now_recv_info_t *esp_now_info,
+                                 const uint8_t *data, int data_len) {
+  ESP_LOGE(TAG, "SLAVE PREPARE FOR UPDATE Callback");
+
+  update_size = 0;
+  update_buffer_write_index = 0;
+  sequenz_counter = 0;
+
+  const BaseMessage *message = (const BaseMessage *)data;
+  const OTA_PREPARE_FOR_UPDATE_Payload *payload =
+      &message->payload.ota_prepare_for_update_payload;
+  // total_update_size = payload->total_size;
+
+  // Queue Command for Task to call the prepare method
+  ota_task_queue_message_t msg = {.command = OTA_MASTER_SEND_PREAPRE_REQUEST};
+  memcpy(msg.mac_addr, esp_now_info->src_addr, ESP_NOW_ETH_ALEN);
+  if (xQueueSend(ota_task_queue, &msg, pdMS_TO_TICKS(10)) != pdTRUE) {
+    ESP_LOGE(TAG, "Failed to send prepare command to OTA task");
+  }
+  ESP_LOGE(TAG, "SLAVE PREPARE CALLBACK AFTER QUEUE SEND");
+
+  // Tell the master that the slave will preapre
+  OTA_PREPARE_ACKNOWLEDGED_Payload *reply_payload;
+  BaseMessage reply_message =
+      MessageBuilder(OTA_PREPARE_ACKNOWLEDGED, *(PayloadUnion *)&reply_payload,
+                     sizeof(OTA_PREPARE_ACKNOWLEDGED_Payload));
+  ESP_ERROR_CHECK(esp_now_send(esp_now_info->src_addr,
+                               (uint8_t *)&reply_message, sizeof(BaseMessage)));
+}
+
+void slave_Update_Chunk_Callback(const esp_now_recv_info_t *esp_now_info,
+                                 const uint8_t *data, int data_len) {
+  const BaseMessage *message = (const BaseMessage *)data;
+  const OTA_CHUNK_Payload *payload = &message->payload.ota_chunk_payload;
+
+  // copy data to update_buffer_chunk so that the write method can write it
+  // back later
+  memcpy(update_buffer_chunk, payload->data, payload->data_len);
+  update_buffer_chunk_len = payload->data_len;
+
+  ESP_LOGI(TAG, "slave_update_Chunk_Callback got %d bytes from Master",
+           payload->data_len);
+
+  // Queue Command for Task to call the ota_write_message method
+  ota_task_queue_message_t msg = {.command = OTA_MASTER_SEND_CHUNK};
+  memcpy(msg.mac_addr, esp_now_info->src_addr, ESP_NOW_ETH_ALEN);
+  if (xQueueSend(ota_task_queue, &msg, pdMS_TO_TICKS(10)) != pdTRUE) {
+    ESP_LOGE(TAG, "Failed to send prepare command to OTA task");
+  }
+}
+
+void slave_Update_Finished_Callback(const esp_now_recv_info_t *esp_now_info,
+                                    const uint8_t *data, int data_len) {
+  const BaseMessage *message = (const BaseMessage *)data;
+  const OTA_FINISH_UPDATE_Payload *payload =
+      &message->payload.ota_finish_update_payload;
+
+  ESP_LOGI(TAG, "slave_Update_Finished_Callback");
+
+  // Queue Command for Task to call the ota_write_message method
+  ota_task_queue_message_t msg = {.command = OTA_MASTER_SEND_FINISH};
+  memcpy(msg.mac_addr, esp_now_info->src_addr, ESP_NOW_ETH_ALEN);
+  if (xQueueSend(ota_task_queue, &msg, pdMS_TO_TICKS(10)) != pdTRUE) {
+    ESP_LOGE(TAG, "Failed to send prepare command to OTA task");
+  }
+}
+
+void start_ota_update_espnow(uint8_t msgid, const uint8_t *payload,
+                             size_t payload_len, uint8_t *send_payload_buffer,
+                             size_t send_payload_buffer_size,
+                             uint8_t *send_buffer, size_t send_buffer_size) {
+  ESP_LOGI(TAG, "Starting OTA update for all clients");
+
+  const esp_partition_t *ota_update_partition;
+
+  ota_update_partition = esp_ota_get_next_update_partition(NULL);
+  if (ota_update_partition == NULL) {
+    ESP_LOGE(TAG, "Failed to get update partition");
+    return;
+  }
+
+  update_size = get_app_size(ota_update_partition);
+
+  partition_to_read_update_from = *ota_update_partition;
+  partition_to_read_from_read_index = 0;
+
+  BaseMessage replyMessage = {};
+  OTA_PREPARE_FOR_UPDATE_Payload replyPayload = {};
+
+  replyMessage =
+      MessageBuilder(OTA_PREPARE_FOR_UPDATE, *(PayloadUnion *)&replyPayload,
+                     sizeof(replyPayload));
+
+  for (int i = 0; i < MAX_CLIENTS; i++) {
+    if (client_list->Clients[i].slotIsUsed) {
+      esp_now_send(client_list->Clients[i].macAddr, (uint8_t *)&replyMessage,
+                   sizeof(BaseMessage));
+      client_list->Clients[i].ota_status = OTA_READY;
+    }
+  }
+}
+
+void master_ota_prepare_acknowledge_callback(
+    const esp_now_recv_info_t *esp_now_info, const uint8_t *data,
+    int data_len) {
+  ESP_LOGI(TAG, "entering master_ota_prepare_acknowledge_callback");
+  // Queue Command for Task to call the ota_write_message method
+  ota_task_queue_message_t msg = {.command = OTA_SLAVE_WILL_PREPARE};
+  memcpy(msg.mac_addr, esp_now_info->src_addr, ESP_NOW_ETH_ALEN);
+  if (xQueueSend(ota_task_queue, &msg, pdMS_TO_TICKS(10)) != pdTRUE) {
+    ESP_LOGE(TAG, "Failed to send prepare command to OTA task");
+  }
+}
+
+void master_ota_ready_to_recieve_callback(
+    const esp_now_recv_info_t *esp_now_info, const uint8_t *data,
+    int data_len) {
+  ESP_LOGI(TAG, "entering master_ota_ready_to_recieve_callback");
+  // Queue Command for Task to call the ota_write_message method
+  ota_task_queue_message_t msg = {.command = OTA_SLAVE_IS_PREPARED};
+  memcpy(msg.mac_addr, esp_now_info->src_addr, ESP_NOW_ETH_ALEN);
+  if (xQueueSend(ota_task_queue, &msg, pdMS_TO_TICKS(10)) != pdTRUE) {
+    ESP_LOGE(TAG, "Failed to send prepare command to OTA task");
+  }
+}
+
+void master_ota_update_slave_acknowledge_callback(
+    const esp_now_recv_info_t *esp_now_info, const uint8_t *data,
+    int data_len) {
+  ESP_LOGI(TAG, "entering master_ota_update_slave_acknowledge_callback");
+  // Queue Command for Task to call the ota_write_message method
+  ota_task_queue_message_t msg = {.command = OTA_SLAVE_ACKED};
+  memcpy(msg.mac_addr, esp_now_info->src_addr, ESP_NOW_ETH_ALEN);
+  if (xQueueSend(ota_task_queue, &msg, pdMS_TO_TICKS(10)) != pdTRUE) {
+    ESP_LOGE(TAG, "Failed to send prepare command to OTA task");
+  }
+}

main/ota_update.h

@@ -0,0 +1,97 @@
+#ifndef OTA_UPDATE_H
+#define OTA_UPDATE_H
+
+#include "client_handler.h"
+#include "esp_err.h"
+#include "esp_now.h"
+#include "esp_partition.h"
+#include "message_structs.h"
+#include <stdint.h>
+#include <sys/types.h>
+
+#define UPDATE_BUFFER_SIZE 4096
+#define UPDATE_PAYLOAD_SIZE 200
+#define UPDATE_MAX_SEQUENZES (UPDATE_BUFFER_SIZE / UPDATE_PAYLOAD_SIZE)
+
+typedef enum {
+  OTA_SEND_SLAVES_PREPARE_MESSAGE,
+  OTA_SLAVE_WILL_PREPARE,
+  OTA_SLAVE_IS_PREPARED,
+  OTA_SLAVE_ACKED,
+  OTA_SLAVE_ERROR,
+  OTA_MASTER_SEND_PREAPRE_REQUEST,
+  OTA_MASTER_SEND_CHUNK,
+  OTA_MASTER_SEND_FINISH,
+} ota_command_t;
+
+typedef struct {
+  ota_command_t command;
+  uint8_t mac_addr[ESP_NOW_ETH_ALEN];
+} ota_task_queue_message_t;
+
+typedef struct {
+  ClientList *client_list;
+} MasterOTA_TaskParams_t;
+
+typedef struct __attribute__((packed)) {
+  uint16_t sequence_counter;
+  uint16_t write_index;
+  uint8_t error;
+} uart_ota_ack_t;
+
+typedef struct __attribute__((packed)) {
+  uint8_t partition;
+  uint8_t error;
+} uart_ota_start_t;
+
+typedef struct __attribute__((packed)) {
+  uint8_t error;
+} uart_ota_end_t;
+
+void init_ota();
+void RegisterUART_OTAFunctions();
+void MasterOTATask(void *pvParameter);
+void slave_ota_task(void *pvParameter);
+
+u_int32_t get_app_size(const esp_partition_t *app_size_partition);
+
+int prepare_ota_update();
+esp_err_t write_ota_update(uint32_t write_len, const uint8_t *payload);
+esp_err_t end_ota_update();
+
+void slave_Prep_Upgrade_Callback(const esp_now_recv_info_t *esp_now_info,
+                                 const uint8_t *data, int data_len);
+void slave_Update_Chunk_Callback(const esp_now_recv_info_t *esp_now_info,
+                                 const uint8_t *data, int data_len);
+void slave_Update_Finished_Callback(const esp_now_recv_info_t *esp_now_info,
+                                    const uint8_t *data, int data_len);
+
+void master_ota_prepare_acknowledge_callback(
+    const esp_now_recv_info_t *esp_now_info, const uint8_t *data, int data_len);
+
+void master_ota_ready_to_recieve_callback(
+    const esp_now_recv_info_t *esp_now_info, const uint8_t *data, int data_len);
+
+void master_ota_update_slave_acknowledge_callback(
+    const esp_now_recv_info_t *esp_now_info, const uint8_t *data, int data_len);
+
+void start_uart_update(uint8_t msgid, const uint8_t *payload,
+                       size_t payload_len, uint8_t *send_payload_buffer,
+                       size_t send_payload_buffer_size, uint8_t *send_buffer,
+                       size_t send_buffer_size);
+void payload_uart_update(uint8_t msgid, const uint8_t *payload_data_from_uart,
+                         size_t total_payload_len_from_uart,
+                         uint8_t *send_payload_buffer,
+                         size_t send_payload_buffer_size, uint8_t *send_buffer,
+                         size_t send_buffer_size);
+void end_uart_update(uint8_t msgid, const uint8_t *payload, size_t payload_len,
+                     uint8_t *send_payload_buffer,
+                     size_t send_payload_buffer_size, uint8_t *send_buffer,
+                     size_t send_buffer_size);
+
+void start_ota_update_espnow(uint8_t msgid, const uint8_t *payload,
+                             size_t payload_len, uint8_t *send_payload_buffer,
+                             size_t send_payload_buffer_size,
+                             uint8_t *send_buffer, size_t send_buffer_size);
+
+#endif

main/uart_handler.c

@@ -18,7 +18,8 @@ static const char *TAG = "ALOX - UART";
 static QueueHandle_t parsed_message_queue;
 
 void init_uart(QueueHandle_t msg_queue_handle) {
-  uart_config_t uart_config = {.baud_rate = 115200,
+  uart_config_t uart_config = {// .baud_rate = 115200, // 921600, 115200
+                               .baud_rate = 921600,
                                .data_bits = UART_DATA_8_BITS,
                                .parity = UART_PARITY_DISABLE,
                                .stop_bits = UART_STOP_BITS_1,
@@ -61,9 +62,9 @@ void send_message_hook(const uint8_t *buffer, size_t length) {
 
 void HandleMessageReceivedCallback(uint8_t msgid, const uint8_t *payload,
                                    size_t payload_len) {
-  ESP_LOGI(TAG, "GOT UART MESSAGE MSGID: %02X, Len: %u bytes \nMSG: ", msgid,
+  /*ESP_LOGI(TAG, "GOT UART MESSAGE MSGID: %02X, Len: %u bytes \nMSG: ", msgid,
            payload_len, payload);
-  ESP_LOG_BUFFER_HEX(TAG, payload, payload_len);
+  ESP_LOG_BUFFER_HEX(TAG, payload, payload_len);*/
 
   ParsedMessage_t msg_to_send;
   msg_to_send.msgid = msgid;

main/uart_msg_ids.h

@@ -0,0 +1,19 @@
+#ifndef UART_MSG_IDS_H
+#define UART_MSG_IDS_H
+
+enum UART_MSG_IDS {
+  // MISC
+  UART_ECHO = 0x01,
+  UART_VERSION = 0x02,
+  UART_CLIENT_INFO = 0x03,
+  UART_CLIENT_INPUT = 0x04,
+
+  // OTA
+  UART_OTA_START = 0x10,
+  UART_OTA_PAYLOAD = 0x11,
+  UART_OTA_END = 0x12,
+  UART_OTA_STATUS = 0x13,
+  UART_OTA_START_ESPNOW = 0x14,
+};
+
+#endif

readme.md

@@ -1,55 +1,150 @@
+# Conventions
+
+## Naming
+
+### Filenames: snake_case (ota_master.c, ota_slave.c, com_handler.c)
+
+### Functions: module_submodule_action()
+- OTA Master = ota_m_send_chunk(), ota_m_init()
+- OTA Slave = ota_s_handle_chunk(), ota_s_prepare_flash()
+- com_init(), msg_parse()
+
+### Variables:
+- Global: g_ (g_client_list)
+- Statics: s_ (s_update_handle)
+- Constants: UPPER_SNAKE_CASE (UPDATE_BUFFER_SIZE)
+
+### Types:
+- Typedefs: Ends with _t (ota_payload_t)
+- Struct-Tags: Ends with _t or spezifik name (struct ota_context)
+- Unions: Ends with _u (msg_payload_u)
+- Callbacks: End with _cb (com_m_rx_cb)
+
+### FreeRTOS-Objects
+- x for Basetypes (x_ota_queue, x_status_semaphor)
+- v for void return (v_ota_task)
+
 # UART Protokoll
 
 ## Struktur einer Nachricht
 
-    0xAA = Startbyte  
+- Control Bytes:
-    checksum = XOR über alle Bytes (ohne Startbyte und Checksum-Byte)
+    - 0xAA = Startbyte  
+    - 0xBB = EscapeByte
+    - 0xCC = EndByte
     
-## Nachrichtenaufbau (Message Frame)
+checksum = XOR über alle Bytes (ohne Control Bytes und Checksum-Byte)
 
-[ Startbyte ] [ Length ] [ CommandPage ] [ Payload (variabel) ] [ Checksum ]
+Command, Payload und Checksum werden Escaped sollten sie einem Control Byte ensteprechend
+| Startbyte | Command | Payload (variable) | Checksum | Endbyte |
+|-----------|---------|--------------------|----------|---------|
 
 ### Felder im Detail:
 
-- **Length** (`uint8_t`):  
+- **Command** (`uint8_t`):  
-  Gibt die Gesamtlänge der Nachricht **ab `CommandPage` bis einschließlich `Payload`** an.  
+  Gibt an, welcher Nachrichtentyp gesendet wird.
-
-- **CommandPage** (`uint8_t`):  
-  Gibt an, welcher Nachrichtentyp oder Befehl gesendet wird.
 
 - **Payload** (`variabel`):  
-  Datenfeld mit variabler Länge, abhängig vom `CommandPage`.
+  Datenfeld mit variabler Länge, abhängig vom `Command`.
 
 - **Checksum** (`uint8_t`):  
-  XOR über alle Bytes ab `Length` bis einschließlich `Payload`.  
+  XOR über aller Bytes von `Command` und `Payload`.  
-
-### Nachrichten von PC zu ESP:
-
-clientid: 0x00 für master, 0xFF für broadcast, ansonsten 0xA0-0xB3 // 19 Clients
-
-### RequestPing 0xE1
-Payload: byte: clientid
-### RequestInfo 0xE2
-Payload: byte: clientid
-### RequestRestart 0xE3
-Payload: byte: clientid
-### PrepareFirmwareUpdate 0xF1
-Payload: none 
-### FirmwareUpdateLine 0xF2
-Payload: firmware line 240Bytes MAX 
-### ExecuteFirmwareUpdate 0xF3
-Payload: none 
-
-### Nachrichten von ESP zu PC:
 
 
+### Messages
 
----
+Command: 
+- UART_ECHO        = 0x01
+- UART_VERSION     = 0x02
+- UART_CLIENT_INFO = 0x03
 
-# Roadmap 
+Grundlegend sind alle Zahlenwerte im LittleEndian format!
-- [ ] SEND STATUS OF DEVICE OVER UART
+
-- [ ] CONFIGURE PEERS OVER MASTER
+#### UART_ECHO:
-- [ ] SAVE PIN CONFIG ON PEERS
+
+- Send Message: AA 01 01 CC
+- Message Received: AA 01 01 CC
+
+Sendet zurück was geschickt wird.
+
+#### UART_VERSION:
+
+| Offset | Länge (Bytes) | Bezeichnung | Beschreibung     |
+|--------|---------------|-------------|------------------|
+| 0      | 2             | Version     | Software Version |
+| 2      | 7             | BuildHash   | Git Hash         |
+
+
+- Send Message: AA 02 02 CC
+- Message Received: AA 02 01 00 33 62 35 36 30 37 39 6F CC
+
+| Version | Buildhash |
+|---------|-----------|
+| 1       | 3b56078   |
+
+
+Sendet die Version und den Buildhash vom Master zurück.
+
+#### UART_CLIENT_INFO:
+
+Das erste Datenbyte nach dem Commando gibt an wie viele Client Infos in dieser Nachricht vorhanden sind.
+
+Danach teilt sich ein Eintrag wie Folgt auf:
+| Offset | Länge (Bytes) | Bezeichnung                | Beschreibung                                                  |
+|--------|---------------|----------------------------|---------------------------------------------------------------|
+| 0      | 1             | Client ID                  | Eindeutige ID des Clients.                                    |
+| 1      | 1             | Ist verfügbar              | Boolean-Wert (0 = nein, 1 = ja), ob der Client verfügbar ist. |
+| 2      | 1             | Slot genutzt               | Boolean-Wert (0 = nein, 1 = ja), ob der Slot belegt ist.      |
+| 3      | 6             | MAC-Adresse                | Die Hardware-Adresse des Clients.                             |
+| 9      | 4             | Letzter Ping               | Zeit in Millisekunden seit dem letzten Ping.                  |
+| 13     | 4             | Letzter erfolgreicher Ping | Zeit in Millisekunden seit dem letzten erfolgreichen Ping.    |
+| 17     | 2             | Version                    | Versionsnummer des Clients.                                   |
+
+##### Ein Client
+
+- Send Message: AA 03 03 CC
+- Message Received: AA 03 01 00 01 01 50 78 7D 18 89 F8 34 00 00 00 61 1F 00 00 02 00 76 CC
+
+| Client ID | Verfügbar | Genutzt | MAC-Adresse       | Last Ping | Last Successful Ping | Version |
+|-----------|-----------|---------|-------------------|-----------|----------------------|---------|
+| 0         | 1         | 1       | 50:78:7D:18:89:F8 | 52        | 8033                 | 2       |
+
+##### Zwei Clients
+
+- Send Message: AA 03 03 CC
+- Message Received: AA 03 02 00 01 01 50 78 7D 18 89 F8 22 00 00 00 F4 2A 01 00 02 00 01 01 01 50 78 7D 18 0C B4 10 00 00 00 F1 2A 01 00 02 00 FE CC
+
+| Client ID | Verfügbar | Genutzt | MAC-Adresse       | Last Ping | Last Successful Ping | Version |
+|-----------|-----------|---------|-------------------|-----------|----------------------|---------|
+| 0         | 1         | 1       | 50:78:7D:18:89:F8 | 34        | 76532                | 2       |
+| 1         | 1         | 1       | 50:78:7D:18:C:B4  | 16        | 76529                | 2       |
+
+#### UART_CLIENT_INPUT:
+
+Die Identifizierung wird hier anhand der vorher gesendeten ClientID gemacht also muss einmal vorher `UART_CLIENT_INFO` aufgerufen werden.
+
+Das erste Datenbyte nach dem Commando gibt an wie viele Client Infos in dieser Nachricht vorhanden sind.
+
+Danach teilt sich ein Eintrag wie Folgt auf:
+| Offset | Länge (Bytes) | Bezeichnung | Beschreibung                                                                     |
+|--------|---------------|-------------|----------------------------------------------------------------------------------|
+| 0      | 1             | Client ID   | Eindeutige ID des Clients.                                                       |
+| 1      | 4             | LageX       | Float Wert von der X Lage.                                                       |
+| 5      | 4             | LageY       | Float Wert von der Y Lage.                                                       |
+| 9      | 4             | InputMaske  | Int32 Wert der als Bitmaske genutzt wird um bis zu 32 Boolische Werte anzugeben. |
+
+Inputmaske:
+Taster1, Taster2, IOError1, IOErro2, AkkuStand1, AkkuStand2 (2 Bit kodiert für 25%,50%,75%,100%), rest unbelegt, default 0
+
+| Bit1 | Bit2 | Akkustand |
+|------|------|-----------|
+| 0    | 0    | 25%       |
+| 0    | 1    | 50%       |
+| 1    | 0    | 75%       |
+| 1    | 1    | 100%      |
+
+
+<div style="page-break-after: always;"></div>
 
 # Machbarkeits-Studie
 
@@ -177,3 +272,55 @@ techn. Anforderungen hinreichend gut umsetzen lassen.
 und ob diese den ursprünglichen Anforderungen entsprechen.
 
 
+
+## OTA-Update Technische Umsetzung:
+
+### Vorrausetzung:
+- Update File steht bereit und ist unter 2MB groß.
+- UART Verbindung steht
+- ESP Funktioniert einwandfrei
+- ESP Läuft auf Partition A, Partition B soll geupdated werden
+
+### Erste Schritt:
+- Update in 200Byte stücke zerhacken und stück für stück per UART an den Master schicken
+- Uart Protokol hat schon eine fehlercheck für die Übertragung drinnen
+- Firmware wird in Partition B geschrieben
+- OTA API Validiert Firmware am ende
+
+#### Hier könnte man schon einen Neustart machen und Validieren ob die Firmware für den Master läuft!
+#### Denn angeblich kann man beim ESP die aktuell laufende Partition auslesen
+
+### Zweiter Schritt:
+- Master liest in 200Byte stücken die Firmware aus seiner Partition B aus
+- Und schickt per Broadcast die ersten 20 Packete an die Clients
+- Die clients haben 4KB Buffer vorgesehen wo sie die 20 Packete unterbringen können
+- Master Forder Ack Bitmaske an zur Validierung das alle 20 Packete da sind
+- Sollten in der Bitmaske zeilen fehlen gibt der Master per unicast die fehlenden Zeilen an die Entsprechend Clients erneut
+- ESP NOW kümmert sich hier um die Datenintigrität
+- Wenn alle ihre ersten 20 packete haben gibt der master das go und alle schreiben die ersten 20 packete weg.
+- Der master aktuallisiert den fortschritt für alle clients -> dann kann man das auch abfragen per uart und hat eine Fortschrittsanzeige
+- Alle melden sich zurück wenn sie fertig sind mit dem schreiben per ota und der buffer leer ist.
+- Repeat bis alle Daten da sind
+
+Hier hab ich mal grob gerechnet:
+2MB in 200Byte Schritten -> 10.000 Packete
+10.000 Packete in 20er Schritten -> 500 Sequencen
+Retries und Acks mal aussen vor hab ich leider keinen richtigen anhaltspunkt wie lang das dauern kann.
+Aber 500* ca 300ms => ist schonmal 150sekunden nur für das acken das die Packete da sind. Annahme hier das die maximal latenz beim Ping mit 16 Clients ca 300ms sind.
+Entsprechend mit Daten und retries... ja kp, Gemini schätzt max 10min. Wird sich zeigen. Da addiert sich zu viel auf.
+
+- Alle Clients validieren ihren firmware
+- Sollte das bei einem nicht klappen muss man hier nochmal gucken ob man den ganzen process nochmal von vorne anstößt nur mit dem fehlenden client...
+
+### Dritter Schritt:
+- Alle Clients rebooten
+- Clients geben rückmeldung ob das Update funktioniert
+
+#### Hier müssten war noch entscheiden was passiert wenn das Update bei nur ein paar funktionert hat?
+#### Was passiert wenn das Update garnicht funktioniert hat, behält der master dann auch seinen stand?
+#### Entsprechend hätte man ihn vorher auch nicht neustarten dürfen
+
+- Sollten alle Clients ihr go geben startet der Master auch neu
+#### Wenn das Master Update jetzt fehlschlägt sagt er den clients bescheid und die booten auch wieder um?
+
+Gibt halt noch ein zwar sachen die man sich überlegen muss aber ich denke den rest hab ich soweit ausgearbeitet

sdkconfig

@@ -1,6 +1,6 @@
 #
 # Automatically generated file. DO NOT EDIT.
-# Espressif IoT Development Framework (ESP-IDF) 5.5.0 Project Configuration
+# Espressif IoT Development Framework (ESP-IDF) 5.5.1 Project Configuration
 #
 CONFIG_SOC_ADC_SUPPORTED=y
 CONFIG_SOC_UART_SUPPORTED=y
@@ -9,9 +9,11 @@ CONFIG_SOC_PHY_SUPPORTED=y
 CONFIG_SOC_WIFI_SUPPORTED=y
 CONFIG_SOC_TWAI_SUPPORTED=y
 CONFIG_SOC_GDMA_SUPPORTED=y
+CONFIG_SOC_UHCI_SUPPORTED=y
 CONFIG_SOC_AHB_GDMA_SUPPORTED=y
 CONFIG_SOC_GPTIMER_SUPPORTED=y
 CONFIG_SOC_LCDCAM_SUPPORTED=y
+CONFIG_SOC_LCDCAM_CAM_SUPPORTED=y
 CONFIG_SOC_LCDCAM_I80_LCD_SUPPORTED=y
 CONFIG_SOC_LCDCAM_RGB_LCD_SUPPORTED=y
 CONFIG_SOC_MCPWM_SUPPORTED=y
@@ -100,7 +102,7 @@ CONFIG_SOC_CPU_HAS_FPU=y
 CONFIG_SOC_HP_CPU_HAS_MULTIPLE_CORES=y
 CONFIG_SOC_CPU_BREAKPOINTS_NUM=2
 CONFIG_SOC_CPU_WATCHPOINTS_NUM=2
-CONFIG_SOC_CPU_WATCHPOINT_MAX_REGION_SIZE=64
+CONFIG_SOC_CPU_WATCHPOINT_MAX_REGION_SIZE=0x40
 CONFIG_SOC_SIMD_PREFERRED_DATA_ALIGNMENT=16
 CONFIG_SOC_DS_SIGNATURE_MAX_BIT_LEN=4096
 CONFIG_SOC_DS_KEY_PARAM_MD_IV_LENGTH=16
@@ -211,7 +213,7 @@ CONFIG_SOC_RTCIO_INPUT_OUTPUT_SUPPORTED=y
 CONFIG_SOC_RTCIO_HOLD_SUPPORTED=y
 CONFIG_SOC_RTCIO_WAKE_SUPPORTED=y
 CONFIG_SOC_LP_IO_CLOCK_IS_INDEPENDENT=y
-CONFIG_SOC_SDM_GROUPS=y
+CONFIG_SOC_SDM_GROUPS=1
 CONFIG_SOC_SDM_CHANNELS_PER_GROUP=8
 CONFIG_SOC_SDM_CLK_SUPPORT_APB=y
 CONFIG_SOC_SPI_PERIPH_NUM=3
@@ -255,7 +257,7 @@ CONFIG_SOC_LP_TIMER_BIT_WIDTH_LO=32
 CONFIG_SOC_LP_TIMER_BIT_WIDTH_HI=16
 CONFIG_SOC_TOUCH_SENSOR_VERSION=2
 CONFIG_SOC_TOUCH_SENSOR_NUM=15
-CONFIG_SOC_TOUCH_MIN_CHAN_ID=y
+CONFIG_SOC_TOUCH_MIN_CHAN_ID=1
 CONFIG_SOC_TOUCH_MAX_CHAN_ID=14
 CONFIG_SOC_TOUCH_SUPPORT_BENCHMARK=y
 CONFIG_SOC_TOUCH_SUPPORT_SLEEP_WAKEUP=y
@@ -266,6 +268,7 @@ CONFIG_SOC_TOUCH_PROXIMITY_CHANNEL_NUM=3
 CONFIG_SOC_TOUCH_PROXIMITY_MEAS_DONE_SUPPORTED=y
 CONFIG_SOC_TOUCH_SAMPLE_CFG_NUM=1
 CONFIG_SOC_TWAI_CONTROLLER_NUM=1
+CONFIG_SOC_TWAI_MASK_FILTER_NUM=1
 CONFIG_SOC_TWAI_CLK_SUPPORT_APB=y
 CONFIG_SOC_TWAI_BRP_MIN=2
 CONFIG_SOC_TWAI_BRP_MAX=16384
@@ -280,6 +283,7 @@ CONFIG_SOC_UART_SUPPORT_APB_CLK=y
 CONFIG_SOC_UART_SUPPORT_RTC_CLK=y
 CONFIG_SOC_UART_SUPPORT_XTAL_CLK=y
 CONFIG_SOC_UART_WAKEUP_SUPPORT_ACTIVE_THRESH_MODE=y
+CONFIG_SOC_UHCI_NUM=1
 CONFIG_SOC_USB_OTG_PERIPH_NUM=1
 CONFIG_SOC_SHA_DMA_MAX_BUFFER_SIZE=3968
 CONFIG_SOC_SHA_SUPPORT_DMA=y
@@ -349,7 +353,7 @@ CONFIG_SOC_SPI_MEM_SUPPORT_AUTO_WAIT_IDLE=y
 CONFIG_SOC_SPI_MEM_SUPPORT_AUTO_SUSPEND=y
 CONFIG_SOC_SPI_MEM_SUPPORT_AUTO_RESUME=y
 CONFIG_SOC_SPI_MEM_SUPPORT_SW_SUSPEND=y
-CONFIG_SOC_SPI_MEM_SUPPORT_OPI_MODE=y
+CONFIG_SOC_SPI_MEM_SUPPORT_FLASH_OPI_MODE=y
 CONFIG_SOC_SPI_MEM_SUPPORT_TIMING_TUNING=y
 CONFIG_SOC_SPI_MEM_SUPPORT_CONFIG_GPIO_BY_EFUSE=y
 CONFIG_SOC_SPI_MEM_SUPPORT_WRAP=y
@@ -378,6 +382,9 @@ CONFIG_SOC_BLE_DEVICE_PRIVACY_SUPPORTED=y
 CONFIG_SOC_BLUFI_SUPPORTED=y
 CONFIG_SOC_ULP_HAS_ADC=y
 CONFIG_SOC_PHY_COMBO_MODULE=y
+CONFIG_SOC_LCDCAM_CAM_SUPPORT_RGB_YUV_CONV=y
+CONFIG_SOC_LCDCAM_CAM_PERIPH_NUM=1
+CONFIG_SOC_LCDCAM_CAM_DATA_WIDTH_MAX=16
 CONFIG_IDF_CMAKE=y
 CONFIG_IDF_TOOLCHAIN="gcc"
 CONFIG_IDF_TOOLCHAIN_GCC=y
@@ -418,9 +425,9 @@ CONFIG_BOOTLOADER_PROJECT_VER=1
 # end of Application Rollback
 
 #
-# Bootloader Rollback
+# Recovery Bootloader and Rollback
 #
-# end of Bootloader Rollback
+# end of Recovery Bootloader and Rollback
 
 CONFIG_BOOTLOADER_OFFSET_IN_FLASH=0x0
 CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_SIZE=y
@@ -436,10 +443,10 @@ CONFIG_BOOTLOADER_LOG_VERSION=1
 # CONFIG_BOOTLOADER_LOG_LEVEL_NONE is not set
 # CONFIG_BOOTLOADER_LOG_LEVEL_ERROR is not set
 # CONFIG_BOOTLOADER_LOG_LEVEL_WARN is not set
-CONFIG_BOOTLOADER_LOG_LEVEL_INFO=y
+# CONFIG_BOOTLOADER_LOG_LEVEL_INFO is not set
-# CONFIG_BOOTLOADER_LOG_LEVEL_DEBUG is not set
+CONFIG_BOOTLOADER_LOG_LEVEL_DEBUG=y
 # CONFIG_BOOTLOADER_LOG_LEVEL_VERBOSE is not set
-CONFIG_BOOTLOADER_LOG_LEVEL=3
+CONFIG_BOOTLOADER_LOG_LEVEL=4
 
 #
 # Format
@@ -447,6 +454,13 @@ CONFIG_BOOTLOADER_LOG_LEVEL=3
 # CONFIG_BOOTLOADER_LOG_COLORS is not set
 CONFIG_BOOTLOADER_LOG_TIMESTAMP_SOURCE_CPU_TICKS=y
 # end of Format
+
+#
+# Settings
+#
+CONFIG_BOOTLOADER_LOG_MODE_TEXT_EN=y
+CONFIG_BOOTLOADER_LOG_MODE_TEXT=y
+# end of Settings
 # end of Log
 
 #
@@ -506,6 +520,7 @@ CONFIG_ESP_ROM_HAS_HAL_WDT=y
 CONFIG_ESP_ROM_NEEDS_SWSETUP_WORKAROUND=y
 CONFIG_ESP_ROM_HAS_LAYOUT_TABLE=y
 CONFIG_ESP_ROM_HAS_SPI_FLASH=y
+CONFIG_ESP_ROM_HAS_SPI_FLASH_MMAP=y
 CONFIG_ESP_ROM_HAS_ETS_PRINTF_BUG=y
 CONFIG_ESP_ROM_HAS_NEWLIB=y
 CONFIG_ESP_ROM_HAS_NEWLIB_NANO_FORMAT=y
@@ -641,6 +656,7 @@ CONFIG_APPTRACE_LOCK_ENABLE=y
 # Common Options
 #
 # CONFIG_BT_BLE_LOG_SPI_OUT_ENABLED is not set
+# CONFIG_BT_BLE_LOG_UHCI_OUT_ENABLED is not set
 # end of Common Options
 # end of Bluetooth
 
@@ -655,11 +671,11 @@ CONFIG_APPTRACE_LOCK_ENABLE=y
 #
 
 #
-# TWAI Configuration
+# Legacy TWAI Driver Configurations
 #
-# CONFIG_TWAI_ISR_IN_IRAM is not set
+# CONFIG_TWAI_SKIP_LEGACY_CONFLICT_CHECK is not set
 CONFIG_TWAI_ERRATA_FIX_LISTEN_ONLY_DOM=y
-# end of TWAI Configuration
+# end of Legacy TWAI Driver Configurations
 
 #
 # Legacy ADC Driver Configuration
@@ -757,6 +773,7 @@ CONFIG_ESP_TLS_USE_DS_PERIPHERAL=y
 # CONFIG_ESP_TLS_SERVER_MIN_AUTH_MODE_OPTIONAL is not set
 # CONFIG_ESP_TLS_PSK_VERIFICATION is not set
 # CONFIG_ESP_TLS_INSECURE is not set
+CONFIG_ESP_TLS_DYN_BUF_STRATEGY_SUPPORTED=y
 # end of ESP-TLS
 
 #
@@ -782,6 +799,12 @@ CONFIG_ESP_COEX_ENABLED=y
 CONFIG_ESP_ERR_TO_NAME_LOOKUP=y
 # end of Common ESP-related
 
+#
+# ESP-Driver:Camera Controller Configurations
+#
+# CONFIG_CAM_CTLR_DVP_CAM_ISR_CACHE_SAFE is not set
+# end of ESP-Driver:Camera Controller Configurations
+
 #
 # ESP-Driver:GPIO Configurations
 #
@@ -823,8 +846,10 @@ CONFIG_I2C_MASTER_ISR_HANDLER_IN_IRAM=y
 #
 # ESP-Driver:MCPWM Configurations
 #
-# CONFIG_MCPWM_ISR_IRAM_SAFE is not set
+CONFIG_MCPWM_ISR_HANDLER_IN_IRAM=y
+# CONFIG_MCPWM_ISR_CACHE_SAFE is not set
 # CONFIG_MCPWM_CTRL_FUNC_IN_IRAM is not set
+CONFIG_MCPWM_OBJ_CACHE_SAFE=y
 # CONFIG_MCPWM_ENABLE_DEBUG_LOG is not set
 # end of ESP-Driver:MCPWM Configurations
 
@@ -839,11 +864,15 @@ CONFIG_I2C_MASTER_ISR_HANDLER_IN_IRAM=y
 #
 # ESP-Driver:RMT Configurations
 #
-CONFIG_RMT_ISR_HANDLER_IN_IRAM=y
+CONFIG_RMT_ENCODER_FUNC_IN_IRAM=y
+CONFIG_RMT_TX_ISR_HANDLER_IN_IRAM=y
+CONFIG_RMT_RX_ISR_HANDLER_IN_IRAM=y
 # CONFIG_RMT_RECV_FUNC_IN_IRAM is not set
-# CONFIG_RMT_ISR_CACHE_SAFE is not set
+# CONFIG_RMT_TX_ISR_CACHE_SAFE is not set
+# CONFIG_RMT_RX_ISR_CACHE_SAFE is not set
 CONFIG_RMT_OBJ_CACHE_SAFE=y
 # CONFIG_RMT_ENABLE_DEBUG_LOG is not set
+# CONFIG_RMT_ISR_IRAM_SAFE is not set
 # end of ESP-Driver:RMT Configurations
 
 #
@@ -877,12 +906,28 @@ CONFIG_SPI_SLAVE_ISR_IN_IRAM=y
 # CONFIG_TEMP_SENSOR_ENABLE_DEBUG_LOG is not set
 # end of ESP-Driver:Temperature Sensor Configurations
 
+#
+# ESP-Driver:TWAI Configurations
+#
+# CONFIG_TWAI_ISR_IN_IRAM is not set
+# CONFIG_TWAI_ISR_CACHE_SAFE is not set
+# CONFIG_TWAI_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:TWAI Configurations
+
 #
 # ESP-Driver:UART Configurations
 #
 # CONFIG_UART_ISR_IN_IRAM is not set
 # end of ESP-Driver:UART Configurations
 
+#
+# ESP-Driver:UHCI Configurations
+#
+# CONFIG_UHCI_ISR_HANDLER_IN_IRAM is not set
+# CONFIG_UHCI_ISR_CACHE_SAFE is not set
+# CONFIG_UHCI_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:UHCI Configurations
+
 #
 # ESP-Driver:USB Serial/JTAG Configuration
 #
@@ -1032,16 +1077,18 @@ CONFIG_RTC_CLK_CAL_CYCLES=1024
 #
 # Peripheral Control
 #
-# CONFIG_PERIPH_CTRL_FUNC_IN_IRAM is not set
+CONFIG_ESP_PERIPH_CTRL_FUNC_IN_IRAM=y
+CONFIG_ESP_REGI2C_CTRL_FUNC_IN_IRAM=y
 # end of Peripheral Control
 
 #
 # GDMA Configurations
 #
 CONFIG_GDMA_CTRL_FUNC_IN_IRAM=y
-# CONFIG_GDMA_ISR_IRAM_SAFE is not set
+CONFIG_GDMA_ISR_HANDLER_IN_IRAM=y
 CONFIG_GDMA_OBJ_DRAM_SAFE=y
 # CONFIG_GDMA_ENABLE_DEBUG_LOG is not set
+# CONFIG_GDMA_ISR_IRAM_SAFE is not set
 # end of GDMA Configurations
 
 #
@@ -1072,6 +1119,7 @@ CONFIG_ESP_BROWNOUT_USE_INTR=y
 # end of Power Supplier
 
 CONFIG_ESP_SPI_BUS_LOCK_ISR_FUNCS_IN_IRAM=y
+CONFIG_ESP_INTR_IN_IRAM=y
 # end of Hardware Settings
 
 #
@@ -1123,15 +1171,19 @@ CONFIG_ESP_PHY_RF_CAL_PARTIAL=y
 # CONFIG_ESP_PHY_RF_CAL_NONE is not set
 # CONFIG_ESP_PHY_RF_CAL_FULL is not set
 CONFIG_ESP_PHY_CALIBRATION_MODE=0
+CONFIG_ESP_PHY_PLL_TRACK_PERIOD_MS=1000
 # CONFIG_ESP_PHY_PLL_TRACK_DEBUG is not set
 # CONFIG_ESP_PHY_RECORD_USED_TIME is not set
+CONFIG_ESP_PHY_IRAM_OPT=y
+# CONFIG_ESP_PHY_DEBUG is not set
 # end of PHY
 
 #
 # Power Management
 #
+CONFIG_PM_SLEEP_FUNC_IN_IRAM=y
 # CONFIG_PM_ENABLE is not set
-# CONFIG_PM_SLP_IRAM_OPT is not set
+CONFIG_PM_SLP_IRAM_OPT=y
 CONFIG_PM_POWER_DOWN_CPU_IN_LIGHT_SLEEP=y
 CONFIG_PM_RESTORE_CACHE_TAGMEM_AFTER_LIGHT_SLEEP=y
 # end of Power Management
@@ -1148,6 +1200,12 @@ CONFIG_PM_RESTORE_CACHE_TAGMEM_AFTER_LIGHT_SLEEP=y
 # CONFIG_RINGBUF_PLACE_FUNCTIONS_INTO_FLASH is not set
 # end of ESP Ringbuf
 
+#
+# ESP-ROM
+#
+CONFIG_ESP_ROM_PRINT_IN_IRAM=y
+# end of ESP-ROM
+
 #
 # ESP Security Specific
 #
@@ -1200,6 +1258,7 @@ CONFIG_ESP32S3_DATA_CACHE_LINE_SIZE=32
 CONFIG_ESP32S3_TRACEMEM_RESERVE_DRAM=0x0
 # end of Trace memory
 
+CONFIG_ESP_SYSTEM_IN_IRAM=y
 # CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT is not set
 CONFIG_ESP_SYSTEM_PANIC_PRINT_REBOOT=y
 # CONFIG_ESP_SYSTEM_PANIC_SILENT_REBOOT is not set
@@ -1254,6 +1313,7 @@ CONFIG_ESP_SYSTEM_BBPLL_RECALIB=y
 #
 # IPC (Inter-Processor Call)
 #
+CONFIG_ESP_IPC_ENABLE=y
 CONFIG_ESP_IPC_TASK_STACK_SIZE=1280
 CONFIG_ESP_IPC_USES_CALLERS_PRIORITY=y
 CONFIG_ESP_IPC_ISR_ENABLE=y
@@ -1262,6 +1322,7 @@ CONFIG_ESP_IPC_ISR_ENABLE=y
 #
 # ESP Timer (High Resolution Timer)
 #
+CONFIG_ESP_TIMER_IN_IRAM=y
 # CONFIG_ESP_TIMER_PROFILING is not set
 CONFIG_ESP_TIME_FUNCS_USE_RTC_TIMER=y
 CONFIG_ESP_TIME_FUNCS_USE_ESP_TIMER=y
@@ -1304,10 +1365,12 @@ CONFIG_ESP_WIFI_IRAM_OPT=y
 CONFIG_ESP_WIFI_RX_IRAM_OPT=y
 CONFIG_ESP_WIFI_ENABLE_WPA3_SAE=y
 CONFIG_ESP_WIFI_ENABLE_SAE_PK=y
+CONFIG_ESP_WIFI_ENABLE_SAE_H2E=y
 CONFIG_ESP_WIFI_SOFTAP_SAE_SUPPORT=y
 CONFIG_ESP_WIFI_ENABLE_WPA3_OWE_STA=y
 # CONFIG_ESP_WIFI_SLP_IRAM_OPT is not set
 CONFIG_ESP_WIFI_SLP_DEFAULT_MIN_ACTIVE_TIME=50
+# CONFIG_ESP_WIFI_BSS_MAX_IDLE_SUPPORT is not set
 CONFIG_ESP_WIFI_SLP_DEFAULT_MAX_ACTIVE_TIME=10
 CONFIG_ESP_WIFI_SLP_DEFAULT_WAIT_BROADCAST_DATA_TIME=15
 # CONFIG_ESP_WIFI_FTM_ENABLE is not set
@@ -1391,6 +1454,14 @@ CONFIG_FATFS_VFS_FSTAT_BLKSIZE=0
 # CONFIG_FATFS_IMMEDIATE_FSYNC is not set
 # CONFIG_FATFS_USE_LABEL is not set
 CONFIG_FATFS_LINK_LOCK=y
+# CONFIG_FATFS_USE_DYN_BUFFERS is not set
+
+#
+# File system free space calculation behavior
+#
+CONFIG_FATFS_DONT_TRUST_FREE_CLUSTER_CNT=0
+CONFIG_FATFS_DONT_TRUST_LAST_ALLOC=0
+# end of File system free space calculation behavior
 # end of FAT Filesystem support
 
 #
@@ -1461,6 +1532,7 @@ CONFIG_FREERTOS_DEBUG_OCDAWARE=y
 CONFIG_FREERTOS_ENABLE_TASK_SNAPSHOT=y
 CONFIG_FREERTOS_PLACE_SNAPSHOT_FUNS_INTO_FLASH=y
 CONFIG_FREERTOS_NUMBER_OF_CORES=2
+CONFIG_FREERTOS_IN_IRAM=y
 # end of FreeRTOS
 
 #
@@ -1532,6 +1604,15 @@ CONFIG_LOG_TAG_LEVEL_IMPL_CACHE_SIZE=31
 CONFIG_LOG_TIMESTAMP_SOURCE_RTOS=y
 # CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM is not set
 # end of Format
+
+#
+# Settings
+#
+CONFIG_LOG_MODE_TEXT_EN=y
+CONFIG_LOG_MODE_TEXT=y
+# end of Settings
+
+CONFIG_LOG_IN_IRAM=y
 # end of Log
 
 #
@@ -1575,7 +1656,7 @@ CONFIG_LWIP_DHCP_DOES_ARP_CHECK=y
 # CONFIG_LWIP_DHCP_DISABLE_CLIENT_ID is not set
 CONFIG_LWIP_DHCP_DISABLE_VENDOR_CLASS_ID=y
 # CONFIG_LWIP_DHCP_RESTORE_LAST_IP is not set
-CONFIG_LWIP_DHCP_OPTIONS_LEN=68
+CONFIG_LWIP_DHCP_OPTIONS_LEN=69
 CONFIG_LWIP_NUM_NETIF_CLIENT_DATA=0
 CONFIG_LWIP_DHCP_COARSE_TIMER_SECS=1
 
@@ -1705,6 +1786,9 @@ CONFIG_LWIP_HOOK_ND6_GET_GW_NONE=y
 CONFIG_LWIP_HOOK_IP6_SELECT_SRC_ADDR_NONE=y
 # CONFIG_LWIP_HOOK_IP6_SELECT_SRC_ADDR_DEFAULT is not set
 # CONFIG_LWIP_HOOK_IP6_SELECT_SRC_ADDR_CUSTOM is not set
+CONFIG_LWIP_HOOK_DHCP_EXTRA_OPTION_NONE=y
+# CONFIG_LWIP_HOOK_DHCP_EXTRA_OPTION_DEFAULT is not set
+# CONFIG_LWIP_HOOK_DHCP_EXTRA_OPTION_CUSTOM is not set
 CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_NONE=y
 # CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_DEFAULT is not set
 # CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_CUSTOM is not set
@@ -1738,6 +1822,7 @@ CONFIG_MBEDTLS_SSL_OUT_CONTENT_LEN=4096
 # CONFIG_MBEDTLS_X509_TRUSTED_CERT_CALLBACK is not set
 # CONFIG_MBEDTLS_SSL_CONTEXT_SERIALIZATION is not set
 CONFIG_MBEDTLS_SSL_KEEP_PEER_CERTIFICATE=y
+# CONFIG_MBEDTLS_SSL_KEYING_MATERIAL_EXPORT is not set
 CONFIG_MBEDTLS_PKCS7_C=y
 # end of mbedTLS v3.x related
 
@@ -1771,6 +1856,7 @@ CONFIG_MBEDTLS_HAVE_TIME=y
 # CONFIG_MBEDTLS_PLATFORM_TIME_ALT is not set
 # CONFIG_MBEDTLS_HAVE_TIME_DATE is not set
 CONFIG_MBEDTLS_ECDSA_DETERMINISTIC=y
+CONFIG_MBEDTLS_SHA1_C=y
 CONFIG_MBEDTLS_SHA512_C=y
 # CONFIG_MBEDTLS_SHA3_C is not set
 CONFIG_MBEDTLS_TLS_SERVER_AND_CLIENT=y
@@ -1852,6 +1938,7 @@ CONFIG_MBEDTLS_ECP_NIST_OPTIM=y
 # CONFIG_MBEDTLS_THREADING_C is not set
 CONFIG_MBEDTLS_ERROR_STRINGS=y
 CONFIG_MBEDTLS_FS_IO=y
+# CONFIG_MBEDTLS_ALLOW_WEAK_CERTIFICATE_VERIFICATION is not set
 # end of mbedTLS
 
 #
@@ -1874,6 +1961,7 @@ CONFIG_MQTT_TRANSPORT_WEBSOCKET_SECURE=y
 # LibC
 #
 CONFIG_LIBC_NEWLIB=y
+CONFIG_LIBC_MISC_IN_IRAM=y
 CONFIG_LIBC_LOCKS_PLACE_IN_IRAM=y
 CONFIG_LIBC_STDOUT_LINE_ENDING_CRLF=y
 # CONFIG_LIBC_STDOUT_LINE_ENDING_LF is not set
@@ -1992,13 +2080,13 @@ CONFIG_SPI_FLASH_WRITE_CHUNK_SIZE=8192
 #
 # Auto-detect flash chips
 #
-CONFIG_SPI_FLASH_VENDOR_XMC_SUPPORTED=y
+CONFIG_SPI_FLASH_VENDOR_XMC_SUPPORT_ENABLED=y
-CONFIG_SPI_FLASH_VENDOR_GD_SUPPORTED=y
+CONFIG_SPI_FLASH_VENDOR_GD_SUPPORT_ENABLED=y
-CONFIG_SPI_FLASH_VENDOR_ISSI_SUPPORTED=y
+CONFIG_SPI_FLASH_VENDOR_ISSI_SUPPORT_ENABLED=y
-CONFIG_SPI_FLASH_VENDOR_MXIC_SUPPORTED=y
+CONFIG_SPI_FLASH_VENDOR_MXIC_SUPPORT_ENABLED=y
-CONFIG_SPI_FLASH_VENDOR_WINBOND_SUPPORTED=y
+CONFIG_SPI_FLASH_VENDOR_WINBOND_SUPPORT_ENABLED=y
-CONFIG_SPI_FLASH_VENDOR_BOYA_SUPPORTED=y
+CONFIG_SPI_FLASH_VENDOR_BOYA_SUPPORT_ENABLED=y
-CONFIG_SPI_FLASH_VENDOR_TH_SUPPORTED=y
+CONFIG_SPI_FLASH_VENDOR_TH_SUPPORT_ENABLED=y
 CONFIG_SPI_FLASH_SUPPORT_ISSI_CHIP=y
 CONFIG_SPI_FLASH_SUPPORT_MXIC_CHIP=y
 CONFIG_SPI_FLASH_SUPPORT_GD_CHIP=y
@@ -2081,6 +2169,7 @@ CONFIG_UNITY_ENABLE_DOUBLE=y
 CONFIG_UNITY_ENABLE_IDF_TEST_RUNNER=y
 # CONFIG_UNITY_ENABLE_FIXTURE is not set
 # CONFIG_UNITY_ENABLE_BACKTRACE_ON_FAIL is not set
+# CONFIG_UNITY_TEST_ORDER_BY_FILE_PATH_AND_LINE is not set
 # end of Unity unit testing library
 
 #
@@ -2158,10 +2247,10 @@ CONFIG_WIFI_PROV_STA_ALL_CHANNEL_SCAN=y
 # CONFIG_LOG_BOOTLOADER_LEVEL_NONE is not set
 # CONFIG_LOG_BOOTLOADER_LEVEL_ERROR is not set
 # CONFIG_LOG_BOOTLOADER_LEVEL_WARN is not set
-CONFIG_LOG_BOOTLOADER_LEVEL_INFO=y
+# CONFIG_LOG_BOOTLOADER_LEVEL_INFO is not set
-# CONFIG_LOG_BOOTLOADER_LEVEL_DEBUG is not set
+CONFIG_LOG_BOOTLOADER_LEVEL_DEBUG=y
 # CONFIG_LOG_BOOTLOADER_LEVEL_VERBOSE is not set
-CONFIG_LOG_BOOTLOADER_LEVEL=3
+CONFIG_LOG_BOOTLOADER_LEVEL=4
 # CONFIG_FLASH_ENCRYPTION_ENABLED is not set
 # CONFIG_FLASHMODE_QIO is not set
 # CONFIG_FLASHMODE_QOUT is not set
@@ -2188,9 +2277,9 @@ CONFIG_ESP32_APPTRACE_DEST_NONE=y
 CONFIG_ESP32_APPTRACE_LOCK_ENABLE=y
 # CONFIG_EXTERNAL_COEX_ENABLE is not set
 # CONFIG_ESP_WIFI_EXTERNAL_COEXIST_ENABLE is not set
+# CONFIG_CAM_CTLR_DVP_CAM_ISR_IRAM_SAFE is not set
 # CONFIG_GPTIMER_ISR_IRAM_SAFE is not set
-# CONFIG_MCPWM_ISR_IN_IRAM is not set
+# CONFIG_MCPWM_ISR_IRAM_SAFE is not set
-# CONFIG_RMT_ISR_IRAM_SAFE is not set
 # CONFIG_EVENT_LOOP_PROFILING is not set
 CONFIG_POST_EVENTS_FROM_ISR=y
 CONFIG_POST_EVENTS_FROM_IRAM_ISR=y
@@ -2205,6 +2294,7 @@ CONFIG_ESP32S3_RTC_CLK_SRC_INT_RC=y
 # CONFIG_ESP32S3_RTC_CLK_SRC_EXT_OSC is not set
 # CONFIG_ESP32S3_RTC_CLK_SRC_INT_8MD256 is not set
 CONFIG_ESP32S3_RTC_CLK_CAL_CYCLES=1024
+CONFIG_PERIPH_CTRL_FUNC_IN_IRAM=y
 CONFIG_BROWNOUT_DET=y
 CONFIG_ESP32S3_BROWNOUT_DET=y
 CONFIG_BROWNOUT_DET_LVL_SEL_7=y

sdkconfig.old

@@ -436,10 +436,10 @@ CONFIG_BOOTLOADER_LOG_VERSION=1
 # CONFIG_BOOTLOADER_LOG_LEVEL_NONE is not set
 # CONFIG_BOOTLOADER_LOG_LEVEL_ERROR is not set
 # CONFIG_BOOTLOADER_LOG_LEVEL_WARN is not set
-CONFIG_BOOTLOADER_LOG_LEVEL_INFO=y
+# CONFIG_BOOTLOADER_LOG_LEVEL_INFO is not set
-# CONFIG_BOOTLOADER_LOG_LEVEL_DEBUG is not set
+CONFIG_BOOTLOADER_LOG_LEVEL_DEBUG=y
 # CONFIG_BOOTLOADER_LOG_LEVEL_VERBOSE is not set
-CONFIG_BOOTLOADER_LOG_LEVEL=3
+CONFIG_BOOTLOADER_LOG_LEVEL=4
 
 #
 # Format
@@ -548,14 +548,14 @@ CONFIG_ESPTOOLPY_FLASHFREQ_80M=y
 # CONFIG_ESPTOOLPY_FLASHFREQ_20M is not set
 CONFIG_ESPTOOLPY_FLASHFREQ="80m"
 # CONFIG_ESPTOOLPY_FLASHSIZE_1MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE_2MB=y
+# CONFIG_ESPTOOLPY_FLASHSIZE_2MB is not set
-# CONFIG_ESPTOOLPY_FLASHSIZE_4MB is not set
+CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
 # CONFIG_ESPTOOLPY_FLASHSIZE_8MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_16MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_32MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_64MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_128MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE="2MB"
+CONFIG_ESPTOOLPY_FLASHSIZE="4MB"
 # CONFIG_ESPTOOLPY_HEADER_FLASHSIZE_UPDATE is not set
 CONFIG_ESPTOOLPY_BEFORE_RESET=y
 # CONFIG_ESPTOOLPY_BEFORE_NORESET is not set
@@ -1499,17 +1499,20 @@ CONFIG_LOG_VERSION=1
 #
 # Log Level
 #
-# CONFIG_LOG_DEFAULT_LEVEL_NONE is not set
+CONFIG_LOG_DEFAULT_LEVEL_NONE=y
 # CONFIG_LOG_DEFAULT_LEVEL_ERROR is not set
 # CONFIG_LOG_DEFAULT_LEVEL_WARN is not set
-CONFIG_LOG_DEFAULT_LEVEL_INFO=y
+# CONFIG_LOG_DEFAULT_LEVEL_INFO is not set
 # CONFIG_LOG_DEFAULT_LEVEL_DEBUG is not set
 # CONFIG_LOG_DEFAULT_LEVEL_VERBOSE is not set
-CONFIG_LOG_DEFAULT_LEVEL=3
+CONFIG_LOG_DEFAULT_LEVEL=0
 CONFIG_LOG_MAXIMUM_EQUALS_DEFAULT=y
+# CONFIG_LOG_MAXIMUM_LEVEL_ERROR is not set
+# CONFIG_LOG_MAXIMUM_LEVEL_WARN is not set
+# CONFIG_LOG_MAXIMUM_LEVEL_INFO is not set
 # CONFIG_LOG_MAXIMUM_LEVEL_DEBUG is not set
 # CONFIG_LOG_MAXIMUM_LEVEL_VERBOSE is not set
-CONFIG_LOG_MAXIMUM_LEVEL=3
+CONFIG_LOG_MAXIMUM_LEVEL=0
 
 #
 # Level Settings

tools/main.py

@@ -1,248 +0,0 @@
-import queue  # Zum sicheren Datenaustausch zwischen Threads
-import serial
-import time
-import threading
-import sys
-from parser import UartMessageParser, ParserError
-from message_builder import MessageBuilder, MessageBuilderError, PayloadTooLargeError, BufferOverflowError
-import payload_parser
-from rich.console import Console
-from rich.table import Table
-
-SERIAL_PORT = "/dev/ttyUSB0"
-BAUDRATE = 115200
-WRITE_TIMEOUT = 1.5
-READ_TIMEOUT = 2.0
-
-payload_parser = payload_parser.PayloadParser()
-
-
-def on_message_received_from_uart(parsed_message):
-    print(f"[CALLBACK] Nachricht empfangen: MSGID=0x{
-          parsed_message.msgid:02X}, Length={parsed_message.payload_len}")
-    received_message_queue.put(parsed_message)
-
-
-def on_message_fail_from_uart(error_message):
-    print(f"[CALLBACK] Fehler beim Parsen: {error_message}")
-
-
-class ParsedMessage:
-    def __init__(self, msgid, payload_len):
-        self.msgid = msgid
-        self.payload_len = payload_len
-
-
-received_message_queue = queue.Queue()
-
-
-class SerialReader(threading.Thread):
-    # Ändere den Konstruktor, um eine bereits geöffnete serielle Instanz zu akzeptieren
-    def __init__(self, ser_instance, read_timeout, parser):
-        super().__init__()
-        # Speichere die übergebene serielle Instanz
-        self.ser = ser_instance
-        self.read_timeout = read_timeout
-        self.parser = parser
-        self.running = False
-        self.daemon = True  # Thread beendet sich mit dem Hauptprogramm
-
-    def run(self):
-        # Überprüfe, ob die serielle Schnittstelle wirklich offen ist, bevor du beginnst
-        if not self.ser or not self.ser.is_open:
-            print(
-                f"[{self.name}] Fehler: Serielle Schnittstelle ist nicht geöffnet.")
-            return
-
-        print(f"[{self.name}] Lese-Thread gestartet. Überwache {self.ser.port}...")
-        self.ser.timeout = self.read_timeout  # Setze den Timeout für byteweises Lesen
-        self.running = True
-
-        while self.running:
-            try:
-                byte = self.ser.read(1)
-                if byte:
-                    self.parser.parse_byte(byte[0])
-                else:
-                    pass  # Timeout, kein Byte verfügbar, Thread läuft weiter
-            except serial.SerialException as e:
-                print(f"[{self.name}] Lesefehler: {e}")
-                self.running = False
-            except Exception as e:
-                print(f"[{self.name}] Unerwarteter Fehler im Lese-Thread: {e}")
-                self.running = False
-
-        # Der Thread schließt den Port NICHT mehr, das ist Aufgabe des Hauptprogramms.
-        print(f"[{self.name}] Lese-Thread beendet.")
-
-    def stop(self):
-        self.running = False
-        print(f"[{self.name}] Lese-Thread wird beendet...")
-
-
-def on_message_received_from_uart(message_id: int, payload: bytes, payload_length: int):
-    """
-    Callback-Funktion, die aufgerufen wird, wenn der Parser eine vollständige,
-    gültige Nachricht empfangen hat.
-    """
-    print(f"\n[MAIN] Nachricht erfolgreich empfangen! ID: 0x{
-          message_id:02X}")
-    print(f"[MAIN]    Payload ({payload_length} Bytes): {
-          payload[:payload_length].hex().upper()}")
-
-    parsed_object = payload_parser.parse_payload(
-        message_id, payload[:payload_length])
-
-    if message_id == 0x04:
-        print(parsed_object)
-        table = Table(title="Clients")
-        columns = ["ClientId", "IsAvailable",
-                   "IsSlotUsed", "MAC", "LastPing", "LastSuccesfullPing"]
-
-        rows = []
-        for x in parsed_object.clients:
-            mac_string = ':'.join(f'{byte:02x}' for byte in x.mac_address)
-            rows.append([str(x.client_id), str(x.is_available), str(x.is_slot_used), mac_string,
-                        str(x.last_ping), str(x.last_successfull_ping)])
-
-        for column in columns:
-            table.add_column(column)
-
-        for row in rows:
-            table.add_row(*row, style='bright_green')
-
-        console = Console()
-        console.print(table)
-
-
-def on_message_fail_from_uart(message_id: int, current_message_buffer: bytes,
-                              current_index: int, error_type: ParserError):
-    """
-    Callback-Funktion, die aufgerufen wird, wenn der Parser einen Fehler
-    beim Empfang einer Nachricht feststellt.
-    """
-    print(f"\n[MAIN] Fehler beim Parsen der Nachricht! ID: 0x{
-          message_id:02X}")
-    print(f"[MAIN]    Fehler: {error_type.name}")
-    print(f"[MAIN]    Bisheriger Puffer ({current_index} Bytes): {
-          current_message_buffer[:current_index].hex().upper()}")
-
-
-def run_uart_test():
-    """
-    Führt den UART-Test durch: Sendet eine Nachricht und liest alle Antworten.
-    """
-    ser = None
-
-    parser = UartMessageParser(
-        on_message_received_callback=on_message_received_from_uart,
-        on_message_fail_callback=on_message_fail_from_uart
-    )
-    message_builder = MessageBuilder()
-
-    try:
-        ser = serial.Serial(
-            port=SERIAL_PORT,
-            baudrate=BAUDRATE,
-            timeout=READ_TIMEOUT,
-            write_timeout=WRITE_TIMEOUT
-        )
-        print(f"Serielle Schnittstelle {
-              SERIAL_PORT} mit Baudrate {BAUDRATE} geöffnet.")
-
-        reader_thread = SerialReader(
-            ser_instance=ser,
-            read_timeout=10,
-            parser=parser
-        )
-        reader_thread.start()  # Starte den Lese-Thread
-
-        while not reader_thread.running:
-            time.sleep(0.1)
-
-        print("\n--- UART Testkonsole ---")
-        print("Gib eine Zahl (1-10) ein, um eine Nachricht zu senden.")
-        print("Gib 'q' oder 'exit' ein, um das Programm zu beenden.")
-
-        while True:
-            # Warte auf Benutzereingabe
-            user_input = sys.stdin.readline().strip().lower()
-
-            if user_input in ('q', 'exit'):
-                break
-
-            try:
-                choice = int(user_input)
-                if choice in MESSAGES:
-                    msg_info = MESSAGES[choice]
-                    print(f"\n[MAIN] Sende Nachricht für Option {
-                          choice} (MSGID: 0x{msg_info['msg_id']:02X})...")
-                    try:
-                        message_to_send = message_builder.build_message(
-                            msg_info["msg_id"],
-                            msg_info["payload"],
-                            255  # Max Payload Length
-                        )
-                        print(f"[MAIN] Gebaute Nachricht zum Senden: {
-                              message_to_send.hex().upper()}")
-                        bytes_written = ser.write(message_to_send)
-                        print(f"[MAIN] {bytes_written} Bytes gesendet.")
-                    except (PayloadTooLargeError, BufferOverflowError) as e:
-                        print(f"[MAIN] Fehler beim Bauen der Nachricht: {e}")
-                    except Exception as e:
-                        print(
-                            f"[MAIN] Ein unerwarteter Fehler beim Senden der Nachricht ist aufgetreten: {e}")
-                else:
-                    print(
-                        "Ungültige Option. Bitte gib eine Zahl zwischen 1 und 10 ein.")
-            except ValueError:
-                print("Ungültige Eingabe. Bitte gib eine Zahl oder 'q' ein.")
-            except Exception as e:
-                print(
-                    f"[MAIN] Ein unerwarteter Fehler bei der Eingabeverarbeitung ist aufgetreten: {e}")
-
-            # Verarbeite empfangene Nachrichten, die sich in der Queue angesammelt haben
-            while not received_message_queue.empty():
-                msg = received_message_queue.get()
-                print(
-                    f"  > [MAIN-Loop] Verarbeitet: MSGID=0x{msg.msgid:02X}, Length={msg.payload_len}")
-                received_message_queue.task_done()
-
-    except serial.SerialException as e:
-        print(f"Fehler beim Zugriff auf die serielle Schnittstelle: {e}")
-        print(f"Stelle sicher, dass '{
-              SERIAL_PORT}' der korrekte Port ist und nicht von einer anderen Anwendung verwendet wird.")
-    except KeyboardInterrupt:
-        print("\n[MAIN] Test durch Benutzer abgebrochen (Ctrl+C).")
-    except Exception as e:
-        print(f"Ein unerwarteter Fehler im Hauptprogramm ist aufgetreten: {e}")
-    finally:
-        if 'reader_thread' in locals() and reader_thread.is_alive():
-            reader_thread.stop()
-            reader_thread.join(timeout=5)
-            if reader_thread.is_alive():
-                print(
-                    "[MAIN] Warnung: Lese-Thread konnte nicht sauber beendet werden.")
-        if ser and ser.is_open:
-            ser.close()
-            print("Serielle Schnittstelle geschlossen.")
-        print("[MAIN] Programm beendet.")
-
-
-# Nachrichten-Mapping
-MESSAGES = {
-    1: {"msg_id": 0x01, "payload": b"Echo Message 1"},
-    2: {"msg_id": 0x02, "payload": b"Version Request"},
-    3: {"msg_id": 0x03, "payload": b"Client Info Request"},
-    4: {"msg_id": 0x04, "payload": b"Custom Data 4"},
-    5: {"msg_id": 0x05, "payload": b"Custom Data 5"},
-    6: {"msg_id": 0x06, "payload": b"Custom Data 6"},
-    7: {"msg_id": 0x07, "payload": b"Custom Data 7"},
-    8: {"msg_id": 0x08, "payload": b"Custom Data 8"},
-    9: {"msg_id": 0x09, "payload": b"Custom Data 9"},
-    10: {"msg_id": 0x0A, "payload": b"Custom Data 10 - Last One!"},
-}
-
-# Führe den Test aus
-if __name__ == "__main__":
-    run_uart_test()

tools/message_builder.py

@@ -1,115 +0,0 @@
-import enum
-
-START_BYTE = 0xAA
-ESCAPE_BYTE = 0xBB
-END_BYTE = 0xCC
-
-
-class MessageBuilderError(Exception):
-    """Basisklasse für Fehler des Message Builders."""
-    pass
-
-
-class PayloadTooLargeError(MessageBuilderError):
-    """Ausnahme, wenn der Payload zu groß für den Puffer ist."""
-
-    def __init__(self, required_size, buffer_size):
-        super().__init__(f"Payload ({
-            required_size} bytes) ist größer als der verfügbare Puffer ({buffer_size} bytes).")
-        self.required_size = required_size
-        self.buffer_size = buffer_size
-
-
-class BufferOverflowError(MessageBuilderError):
-    """Ausnahme, wenn der Puffer während des Bauens überläuft."""
-
-    def __init__(self, current_size, max_size, byte_to_add=None):
-        msg = f"Pufferüberlauf: Aktuelle Größe {
-            current_size}, Max. Größe {max_size}."
-        if byte_to_add is not None:
-            msg += f" Versuch, Byte 0x{byte_to_add:02X} hinzuzufügen."
-        super().__init__(msg)
-        self.current_size = current_size
-        self.max_size = max_size
-        self.byte_to_add = byte_to_add
-
-
-class MessageBuilder:
-    """
-    Klasse zum Aufbau von UART-Nachrichten gemäß dem definierten Protokoll,
-    inklusive Stuffing und Checksummenberechnung.
-    """
-
-    def __init__(self):
-        pass
-
-    def _needs_stuffing_byte(self, byte: int) -> bool:
-        """
-        Prüft, ob ein Byte ein Stuffing-Byte benötigt (d.h. ob es ein Steuerbyte ist).
-        """
-        return (byte == START_BYTE or byte == ESCAPE_BYTE or byte == END_BYTE)
-
-    def _add_byte_with_length_check(self, byte: int, buffer: bytearray, max_length: int):
-        """
-        Fügt ein Byte zum Puffer hinzu und prüft auf Pufferüberlauf.
-        Löst BufferOverflowError aus, wenn der Puffer voll ist.
-        """
-        if len(buffer) >= max_length:
-            raise BufferOverflowError(len(buffer), max_length, byte)
-        buffer.append(byte)
-
-    def build_message(self, msgid: int, payload: bytes, msg_buffer_size: int) -> bytes:
-        """
-        Baut eine vollständige UART-Nachricht.
-
-        Args:
-            msgid (int): Die Message ID (0-255).
-            payload (bytes): Die Nutzdaten der Nachricht als Byte-Objekt.
-            msg_buffer_size (int): Die maximale Größe des Ausgabepuffers.
-                                   Dies ist die maximale Länge der *fertigen* Nachricht.
-
-        Returns:
-            bytes: Die fertig aufgebaute Nachricht als Byte-Objekt.
-
-        Raises:
-            PayloadTooLargeError: Wenn der Payload (mit Overhead) den Puffer überschreiten würde.
-            BufferOverflowError: Wenn während des Bauens ein Pufferüberlauf auftritt.
-        """
-
-        if len(payload) + 4 > msg_buffer_size:
-            raise PayloadTooLargeError(len(payload) + 4, msg_buffer_size)
-
-        checksum = 0
-        msg_buffer = bytearray()
-
-        # 1. StartByte hinzufügen
-        self._add_byte_with_length_check(
-            START_BYTE, msg_buffer, msg_buffer_size)
-
-        # 2. Message ID hinzufügen (mit Stuffing)
-        if self._needs_stuffing_byte(msgid):
-            self._add_byte_with_length_check(
-                ESCAPE_BYTE, msg_buffer, msg_buffer_size)
-        self._add_byte_with_length_check(msgid, msg_buffer, msg_buffer_size)
-        checksum ^= msgid
-
-        # 3. Payload-Bytes hinzufügen (mit Stuffing)
-        for byte_val in payload:
-            if self._needs_stuffing_byte(byte_val):
-                self._add_byte_with_length_check(
-                    ESCAPE_BYTE, msg_buffer, msg_buffer_size)
-            self._add_byte_with_length_check(
-                byte_val, msg_buffer, msg_buffer_size)
-            checksum ^= byte_val
-
-        # 4. Checksumme hinzufügen (mit Stuffing)
-        if self._needs_stuffing_byte(checksum):
-            self._add_byte_with_length_check(
-                ESCAPE_BYTE, msg_buffer, msg_buffer_size)
-        self._add_byte_with_length_check(checksum, msg_buffer, msg_buffer_size)
-
-        # 5. EndByte hinzufügen
-        self._add_byte_with_length_check(END_BYTE, msg_buffer, msg_buffer_size)
-
-        # Konvertiere bytearray zu unveränderlichem bytes-Objekt
-        return bytes(msg_buffer)

tools/parser.py

@@ -1,170 +0,0 @@
-import enum
-
-# --- Konstanten für das UART-Protokoll ---
-# Diese Werte müssen mit denen auf deinem Embedded-System übereinstimmen
-START_BYTE = 0xAA
-END_BYTE = 0xCC
-ESCAPE_BYTE = 0x7D # Beispielwert, bitte an dein Protokoll anpassen
-
-MAX_PAYLOAD_LENGTH = 255 # Maximale Länge des Nachrichten-Payloads (ohne Message ID und Checksumme)
-# MAX_TOTAL_CONTENT_LENGTH in C beinhaltet Message ID, Payload und Checksumme.
-# Hier definieren wir MAX_PAYLOAD_LENGTH, da der Parser den Payload sammelt.
-# Die Gesamtgröße des empfangenen Puffers (message + checksum) darf MAX_PAYLOAD_LENGTH + 1 nicht überschreiten,
-# da die Checksumme als letztes Byte des Payloads behandelt wird.
-
-# --- Enumerationen für Parser-Zustände und Fehler ---
-class ParserState(enum.Enum):
-    WAITING_FOR_START_BYTE = 0
-    GET_MESSAGE_TYPE = 1
-    ESCAPED_MESSAGE_TYPE = 2
-    IN_PAYLOAD = 3
-    ESCAPE_PAYLOAD_BYTE = 4
-
-class ParserError(enum.Enum):
-    NO_ERROR = 0
-    UNEXPECTED_COMMAND_BYTE = 1
-    WRONG_CHECKSUM = 2
-    MESSAGE_TOO_LONG = 3
-
-class UartMessageParser:
-    """
-    Ein State-Machine-Parser für UART-Nachrichten basierend auf der bereitgestellten C-Logik.
-
-    Nachrichtenformat (angenommen):
-    [START_BYTE] [MESSAGE_ID] [PAYLOAD_BYTES...] [CHECKSUM_BYTE] [END_BYTE]
-
-    Escape-Sequenzen:
-    Wenn START_BYTE, END_BYTE oder ESCAPE_BYTE im MESSAGE_ID oder PAYLOAD vorkommen,
-    werden sie durch ESCAPE_BYTE gefolgt vom ursprünglichen Byte (nicht XORed) ersetzt.
-    Die Checksumme wird über die unescaped Bytes berechnet.
-    """
-
-    def __init__(self, on_message_received_callback=None, on_message_fail_callback=None):
-        """
-        Initialisiert den UART-Nachrichten-Parser.
-
-        Args:
-            on_message_received_callback (callable, optional): Eine Funktion, die aufgerufen wird,
-                wenn eine gültige Nachricht empfangen wurde.
-                Signatur: on_message_received(message_id: int, payload: bytes, payload_length: int)
-            on_message_fail_callback (callable, optional): Eine Funktion, die aufgerufen wird,
-                wenn ein Nachrichtenfehler auftritt.
-                Signatur: on_message_fail(message_id: int, current_message_buffer: bytes,
-                                          current_index: int, error_type: ParserError)
-        """
-        self.state = ParserState.WAITING_FOR_START_BYTE
-        self.index = 0
-        self.checksum = 0
-        self.message_id = 0
-        self.message_buffer = bytearray(MAX_PAYLOAD_LENGTH + 1) # +1 für Checksummen-Byte
-        self.error = ParserError.NO_ERROR
-
-        # Callbacks für die Anwendung. Standardmäßig None oder einfache Print-Funktionen.
-        self.on_message_received = on_message_received_callback if on_message_received_callback else self._default_on_message_received
-        self.on_message_fail = on_message_fail_callback if on_message_fail_callback else self._default_on_message_fail
-
-    def _default_on_message_received(self, message_id, payload, payload_length):
-        """Standard-Callback für empfangene Nachrichten, falls keiner angegeben ist."""
-        print(f"Parser: Nachricht empfangen! ID: 0x{message_id:02X}, "
-              f"Payload ({payload_length} Bytes): {payload[:payload_length].hex().upper()}")
-
-    def _default_on_message_fail(self, message_id, current_message_buffer, current_index, error_type):
-        """Standard-Callback für Nachrichtenfehler, falls keiner angegeben ist."""
-        print(f"Parser: Fehler bei Nachricht! ID: 0x{message_id:02X}, "
-              f"Fehler: {error_type.name}, "
-              f"Bisheriger Puffer ({current_index} Bytes): {current_message_buffer[:current_index].hex().upper()}")
-
-    def parse_byte(self, pbyte: int):
-        """
-        Verarbeitet ein einzelnes empfangenes Byte.
-
-        Args:
-            pbyte (int): Das empfangene Byte (0-255).
-        """
-        # Sicherstellen, dass pbyte ein Integer im Bereich 0-255 ist
-        if not isinstance(pbyte, int) or not (0 <= pbyte <= 255):
-            print(f"Parser: Ungültiges Byte empfangen: {pbyte}. Muss ein Integer von 0-255 sein.")
-            return
-
-        current_state = self.state # Für bessere Lesbarkeit
-
-        if current_state == ParserState.WAITING_FOR_START_BYTE:
-            if pbyte == START_BYTE:
-                self.index = 0
-                self.checksum = 0
-                self.message_id = 0 # Reset message_id
-                self.error = ParserError.NO_ERROR # Reset error
-                self.state = ParserState.GET_MESSAGE_TYPE
-            # Andernfalls ignorieren wir Bytes, bis ein Start-Byte gefunden wird
-
-        elif current_state == ParserState.ESCAPED_MESSAGE_TYPE:
-            self.message_id = pbyte
-            self.checksum ^= pbyte
-            self.state = ParserState.IN_PAYLOAD
-
-        elif current_state == ParserState.GET_MESSAGE_TYPE:
-            if pbyte == ESCAPE_BYTE:
-                self.state = ParserState.ESCAPED_MESSAGE_TYPE
-                return # Dieses Byte wurde als Escape-Sequenz verarbeitet, nicht zum Payload hinzufügen
-            if pbyte == START_BYTE or pbyte == END_BYTE:
-                self.state = ParserState.WAITING_FOR_START_BYTE
-                self.error = ParserError.UNEXPECTED_COMMAND_BYTE
-                self.on_message_fail(self.message_id, self.message_buffer, self.index, self.error)
-                return
-            self.message_id = pbyte
-            self.checksum ^= pbyte
-            self.state = ParserState.IN_PAYLOAD
-
-        elif current_state == ParserState.ESCAPE_PAYLOAD_BYTE:
-            # Das escapte Byte ist Teil des Payloads
-            if self.index < MAX_PAYLOAD_LENGTH + 1: # +1 für Checksummen-Byte
-                self.message_buffer[self.index] = pbyte
-                self.index += 1
-                self.checksum ^= pbyte
-                self.state = ParserState.IN_PAYLOAD
-            else:
-                self.state = ParserState.WAITING_FOR_START_BYTE
-                self.error = ParserError.MESSAGE_TOO_LONG
-                self.on_message_fail(self.message_id, self.message_buffer, self.index, self.error)
-                return
-
-        elif current_state == ParserState.IN_PAYLOAD:
-            if pbyte == ESCAPE_BYTE:
-                self.state = ParserState.ESCAPE_PAYLOAD_BYTE
-                return # Dieses Byte wurde als Escape-Sequenz verarbeitet
-            if pbyte == START_BYTE:
-                self.state = ParserState.WAITING_FOR_START_BYTE
-                self.error = ParserError.UNEXPECTED_COMMAND_BYTE
-                self.on_message_fail(self.message_id, self.message_buffer, self.index, self.error)
-                return
-            if pbyte == END_BYTE:
-                if self.checksum != 0x00:
-                    # Checksummenfehler: Die Checksumme wurde bis zum End-Byte XORed.
-                    # Wenn die empfangene Checksumme korrekt war, sollte das Ergebnis 0 sein.
-                    self.state = ParserState.WAITING_FOR_START_BYTE
-                    self.error = ParserError.WRONG_CHECKSUM
-                    self.on_message_fail(self.message_id, self.message_buffer, self.index, self.error)
-                    return
-                
-                # Erfolgreich empfangen! Die Checksumme ist das letzte Byte im Puffer.
-                # Die Länge des Payloads ist index - 1 (da das letzte Byte die Checksumme war).
-                payload_length = self.index - 1
-                if payload_length < 0: # Falls nur Message ID und Checksumme, aber kein Payload
-                    payload_length = 0
-
-                self.on_message_received(self.message_id, self.message_buffer, payload_length)
-                self.state = ParserState.WAITING_FOR_START_BYTE
-                return # EndByte wurde verarbeitet, nicht zum Payload hinzufügen
-
-            # Normales Payload-Byte
-            if self.index < MAX_PAYLOAD_LENGTH + 1: # +1 für Checksummen-Byte
-                self.message_buffer[self.index] = pbyte
-                self.index += 1
-                self.checksum ^= pbyte
-            else:
-                # Nachricht zu lang
-                self.state = ParserState.WAITING_FOR_START_BYTE
-                self.error = ParserError.MESSAGE_TOO_LONG
-                self.on_message_fail(self.message_id, self.message_buffer, self.index, self.error)
-                return
-

tools/payload_parser.py

@@ -1,192 +0,0 @@
-import dataclasses
-import struct
-from typing import Optional, Union, List
-
-
-@dataclasses.dataclass
-class StatusMessage:
-    """
-    Repräsentiert eine Status-Nachricht (z.B. Message ID 0x01).
-    Payload-Format: [status_code: uint8], [battery_level: uint8], [uptime_seconds: uint16]
-    """
-    status_code: int
-    battery_level: int  # 0-100%
-    uptime_seconds: int
-
-
-@dataclasses.dataclass
-class SensorDataMessage:
-    """
-    Repräsentiert eine Sensor-Daten-Nachricht (z.B. Message ID 0x02).
-    Payload-Format: [temperature_celsius: int16], [humidity_percent: uint16]
-    """
-    temperature_celsius: int  # signed short
-    humidity_percent: int    # unsigned short
-
-
-@dataclasses.dataclass
-class ClientEntry:
-    """
-    Repräsentiert die Informationen für einen einzelnen Client innerhalb der ClientInfoMessage.
-    Payload-Format:
-    [client_id: uint8]
-    [is_available: uint8] (0=false, >0=true)
-    [is_slot_used: uint8] (0=false, >0=true)
-    [mac_address: bytes (6)]
-    [unoccupied_value_1: uint32]
-    [unoccupied_value_2: uint32]
-    Gesamt: 1 + 1 + 1 + 6 + 4 + 4 = 17 Bytes pro Eintrag.
-    """
-    client_id: int
-    is_available: bool
-    is_slot_used: bool
-    mac_address: bytes  # 6 Bytes MAC-Adresse
-    last_ping: int  # 4 Bytes, unbelegt
-    last_successfull_ping: int  # 4 Bytes, unbelegt
-
-
-@dataclasses.dataclass
-class ClientInfoMessage:
-    """
-    Repräsentiert eine Nachricht mit Client-Informationen (Message ID 0x03).
-    Payload-Format:
-    [num_clients: uint8]
-    [client_entry_1: ClientEntry]
-    [client_entry_2: ClientEntry]
-    ...
-    """
-    num_clients: int
-    clients: List[ClientEntry]
-
-
-@dataclasses.dataclass
-class UnknownMessage:
-    """
-    Repräsentiert eine Nachricht mit unbekannter ID oder fehlerhaftem Payload.
-    """
-    message_id: int
-    raw_payload: bytes
-    error_message: str
-
-# --- Payload Parser Klasse ---
-
-
-class PayloadParser:
-    """
-    Interpretiert den Payload einer UART-Nachricht basierend auf ihrer Message ID
-    und wandelt ihn in ein strukturiertes Python-Objekt (dataclass) um.
-    """
-
-    def __init__(self):
-        # Ein Dictionary, das Message IDs auf ihre entsprechenden Parsing-Funktionen abbildet.
-        self._parser_map = {
-            0x01: self._parse_status_message,
-            0x02: self._parse_sensor_data_message,
-            # Aktualisiert für die neue 0x03 Struktur
-            0x03: self._parse_client_info_message,
-            0x04: self._parse_client_info_message,
-            # Füge hier weitere Message IDs und ihre Parsing-Funktionen hinzu
-        }
-
-    def _parse_status_message(self, payload: bytes) -> Union[StatusMessage, UnknownMessage]:
-        """Parsen des Payloads für Message ID 0x01 (StatusMessage)."""
-        # Erwartetes Format: 1 Byte Status, 1 Byte Battery, 2 Bytes Uptime (Little-Endian)
-        if len(payload) != 4:
-            return UnknownMessage(0x01, payload, f"Falsche Payload-Länge für StatusMessage: Erwartet 4, Got {len(payload)}")
-        try:
-            # '<BBH' bedeutet: Little-Endian, Byte (unsigned char), Byte (unsigned char), Half-word (unsigned short)
-            status_code, battery_level, uptime_seconds = struct.unpack(
-                '<BBH', payload)
-            return StatusMessage(status_code, battery_level, uptime_seconds)
-        except struct.error as e:
-            return UnknownMessage(0x01, payload, f"Fehler beim Entpacken der StatusMessage: {e}")
-
-    def _parse_sensor_data_message(self, payload: bytes) -> Union[SensorDataMessage, UnknownMessage]:
-        """Parsen des Payloads für Message ID 0x02 (SensorDataMessage)."""
-        # Erwartetes Format: 2 Bytes Temperatur (signed short), 2 Bytes Feuchtigkeit (unsigned short) (Little-Endian)
-        if len(payload) != 4:
-            return UnknownMessage(0x02, payload, f"Falsche Payload-Länge für SensorDataMessage: Erwartet 4, Got {len(payload)}")
-        try:
-            # '<hH' bedeutet: Little-Endian, short (signed), unsigned short
-            temperature_celsius, humidity_percent = struct.unpack(
-                '<hH', payload)
-            return SensorDataMessage(temperature_celsius, humidity_percent)
-        except struct.error as e:
-            return UnknownMessage(0x02, payload, f"Fehler beim Entpacken der SensorDataMessage: {e}")
-
-    def _parse_client_info_message(self, payload: bytes) -> Union[ClientInfoMessage, UnknownMessage]:
-        """Parsen des Payloads für Message ID 0x03 (ClientInfoMessage)."""
-        if not payload:
-            # Wenn der Payload leer ist, aber num_clients erwartet wird, ist das ein Fehler
-            return UnknownMessage(0x03, payload, "Payload für ClientInfoMessage ist leer, aber num_clients erwartet.")
-
-        try:
-            # Das erste Byte ist die Anzahl der Clients
-            num_clients = payload[0]
-            # Die restlichen Bytes sind die Client-Einträge
-            client_data_bytes = payload[1:]
-
-            # 1 (ID) + 1 (Avail) + 1 (Used) + 6 (MAC) + 4 (Val1) + 4 (Val2)
-            EXPECTED_CLIENT_ENTRY_SIZE = 17
-
-            if len(client_data_bytes) != num_clients * EXPECTED_CLIENT_ENTRY_SIZE:
-                return UnknownMessage(0x03, payload,
-                                      f"Falsche Payload-Länge für Client-Einträge: Erwartet {
-                                          num_clients * EXPECTED_CLIENT_ENTRY_SIZE}, "
-                                      f"Got {len(client_data_bytes)} nach num_clients.")
-
-            clients_list: List[ClientEntry] = []
-            # Formatstring für einen Client-Eintrag:
-            # < : Little-Endian
-            # B : uint8 (client_id, is_available, is_slot_used)
-            # 6s: 6 Bytes (mac_address)
-            # I : uint32 (unoccupied_value_1, unoccupied_value_2)
-            CLIENT_ENTRY_FORMAT = '<BBB6sII'
-
-            for i in range(num_clients):
-                start_index = i * EXPECTED_CLIENT_ENTRY_SIZE
-                end_index = start_index + EXPECTED_CLIENT_ENTRY_SIZE
-                entry_bytes = client_data_bytes[start_index:end_index]
-
-                # Entpacke die Daten für einen Client-Eintrag
-                client_id, is_available_byte, is_slot_used_byte, mac_address, val1, val2 = \
-                    struct.unpack(CLIENT_ENTRY_FORMAT, entry_bytes)
-
-                # Konvertiere 0/1 Bytes zu boolschen Werten
-                is_available = bool(is_available_byte)
-                is_slot_used = bool(is_slot_used_byte)
-
-                clients_list.append(ClientEntry(
-                    client_id=client_id,
-                    is_available=is_available,
-                    is_slot_used=is_slot_used,
-                    mac_address=mac_address,
-                    last_ping=val1,
-                    last_successfull_ping=val2
-                ))
-
-            return ClientInfoMessage(num_clients=num_clients, clients=clients_list)
-
-        except struct.error as e:
-            return UnknownMessage(0x03, payload, f"Fehler beim Entpacken der ClientInfoMessage-Einträge: {e}")
-        except Exception as e:
-            return UnknownMessage(0x03, payload, f"Unerwarteter Fehler beim Parsen der ClientInfoMessage: {e}")
-
-    def parse_payload(self, message_id: int, payload: bytes) -> Union[StatusMessage, SensorDataMessage, ClientInfoMessage, UnknownMessage]:
-        """
-        Interpretiert den gegebenen Payload basierend auf der Message ID.
-
-        Args:
-            message_id (int): Die ID der Nachricht.
-            payload (bytes): Die rohen Nutzdaten der Nachricht.
-
-        Returns:
-            Union[StatusMessage, SensorDataMessage, ClientInfoMessage, UnknownMessage]:
-            Ein dataclass-Objekt, das die dekodierten Daten repräsentiert,
-            oder ein UnknownMessage-Objekt bei unbekannter ID oder Parsing-Fehler.
-        """
-        parser_func = self._parser_map.get(message_id)
-        if parser_func:
-            return parser_func(payload)
-        else:
-            return UnknownMessage(message_id, payload, "Unbekannte Message ID.")