skruecken/powerpods
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Stream slave accel via ESP-NOW with master snapshot cache.

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Slaves push BMA456 samples at 16ms when enabled; the master caches per
client and exposes ACCEL_SNAPSHOT and ACCEL_STREAM over UART. goTool adds
dashboard stream controls, HTTP accel-stream routes, and an external
WebSocket API with per-connection receive/interval and slave stream commands.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
skruecken
2026-05-29 19:11:36 +02:00
co-authored by Cursor
parent ba20544762
commit 47c75110c9
35 changed files with 2409 additions and 300 deletions
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goTool/cmd_serve.go
+18 -5
View File
@@ -21,7 +21,9 @@ var wsUpgrader = websocket.Upgrader{
func runServe(portName string, baud int, args []string) error {
serveFlags := flag.NewFlagSet("serve", flag.ExitOnError)
addr := serveFlags.String("addr", ":8080", "HTTP listen address")
addr := serveFlags.String("addr", ":8080", "dashboard HTTP listen address")
apiAddr := serveFlags.String("api-addr", ":8081", "external API HTTP listen address (empty to disable)")
accelInterval := serveFlags.Duration("accel-interval", defaultAccelStreamInterval, "accel WebSocket sample period on API server")
interval := serveFlags.Duration("interval", 2*time.Second, "UART poll interval")
if err := serveFlags.Parse(args); err != nil {
return err
@@ -35,12 +37,20 @@ func runServe(portName string, baud int, args []string) error {
defer link.Close()
hub := newWSHub()
streamCtl := newAccelStreamCtl()
stop := make(chan struct{})
defer close(stop)
go runPoller(link, portName, hub, *interval, stop)
go runPoller(link, portName, hub, streamCtl, *interval, stop)
go runAccelDashboardPoller(link, hub, *accelInterval, stop)
var apiSrv *http.Server
if *apiAddr != "" {
apiSrv = runAPIServer(portName, link, *apiAddr, *accelInterval, hub, streamCtl, stop)
defer shutdownAPIServer(apiSrv)
}
mux := http.NewServeMux()
mountServeAPI(mux, link, hub)
mountServeAPI(mux, link, hub, streamCtl)
mux.HandleFunc("/ws", func(w http.ResponseWriter, r *http.Request) {
conn, err := wsUpgrader.Upgrade(w, r, nil)
if err != nil {
@@ -64,7 +74,10 @@ func runServe(portName string, baud int, args []string) error {
}
mux.Handle("/", http.FileServer(http.FS(ui)))
log.Printf("dashboard http://localhost%s (UART %s @ %d baud, poll %s, auto-reconnect)",
*addr, portName, baud, interval.String())
log.Printf("dashboard http://localhost%s (UART %s @ %d baud, poll %s, accel %s, auto-reconnect)",
*addr, portName, baud, interval.String(), accelInterval.String())
if *apiAddr == "" {
log.Printf("external API disabled (-api-addr \"\")")
}
return http.ListenAndServe(*addr, mux)
}