simon
c4696657a7
Serve polls the master over UART and pushes live state via WebSocket; reopens the serial port when the device is unplugged and comes back. Co-authored-by: Cursor <cursoragent@cursor.com>
81 lines
2.6 KiB
Markdown
81 lines
2.6 KiB
Markdown
# goTool
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Host-side UART client for the Powerpod **master** ESP.
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Full system documentation (roles, ESP-NOW, framing, protobuf): [`../main/README.md`](../main/README.md).
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## Usage
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```bash
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cd goTool
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go mod tidy
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go run . -port /dev/ttyUSB0 version
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go run . -port /dev/ttyUSB0 clients
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```
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| Flag | Default | Description |
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|------|---------|-------------|
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| `-port` | (required) | Serial port on master UART (GPIO2/3 adapter) |
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| `-baud` | `921600` | Must match firmware `UART_BAUD_RATE` |
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### Commands
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| Command | UART payload | Description |
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|---------|--------------|-------------|
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| `version` | `0x03` | Prints `version` and `git_hash` from firmware |
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| `clients` | `0x04` | Lists slaves registered on the master via ESP-NOW |
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| `unicast-test` | `0x07` | Sends ESP-NOW unicast test to one slave (`-client`, `-seq`) |
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| `test` | — | Run an automated scenario (JSON configs under `testdata/`) |
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| `serve` | — | Web dashboard at `http://localhost:8080` (WebSocket live updates) |
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`clients` requires slaves to have responded to master discover broadcasts first.
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### Automated tests
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Bench **configs** (`testdata/configs/`) list network, MACs, and serial ports (`uart.master` for commands, `*_console` for esptool reset). **Scenarios** run UART commands plus optional `reset` steps.
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```bash
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go run . test -list-configs
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go run . test -config example-lab -scenario smoke
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go run . test -config my-lab -scenario smoke -port /dev/ttyUSB1 -v
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```
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With a complete bench config, `-port` is optional for `test` (uses `uart.master` from JSON).
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See [`testdata/README.md`](testdata/README.md) for the JSON schema.
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### Web dashboard
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Polls the master over UART and pushes state to the browser via WebSocket (Alpine.js + Bootstrap 5).
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```bash
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go run . -port /dev/ttyUSB0 serve
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go run . -port /dev/ttyUSB0 serve -addr :8080 -interval 2s
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make gotool-serve PORT=/dev/ttyUSB0
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```
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Open [http://localhost:8080](http://localhost:8080) — shows master firmware info and the ESP-NOW client table from `CLIENT_INFO`.
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If the UART device is unplugged or the port disappears, `serve` keeps running and retries on each poll interval; the UI shows **UART off** until the port is available again.
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```bash
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go run . -port /dev/ttyUSB0 unicast-test -client 16 -seq 42
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```
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On success the slave serial log should show `UNICAST TEST OK from master … seq=42`.
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Example output:
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```
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clients (2):
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[0] id=42 mac=aabbccddeeff ver=1 available=true used=false last_ping=250 last_success_ping=250
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```
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## Regenerate protobuf
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```bash
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protoc --go_out=./pb --go_opt=paths=source_relative \
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--go_opt=Muart_messages.proto=powerpod/gotool/pb \
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-I ../main/proto ../main/proto/uart_messages.proto
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```
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