simon
6cdca4f3ad
Slaves send HEARTBEAT every 1s; the master marks clients inactive after 3s without traffic and reactivates on reconnect. CLIENT_INFO reports last_ping as milliseconds since the last packet, not uptime. Co-authored-by: Cursor <cursoragent@cursor.com>
44 lines
1.1 KiB
Markdown
44 lines
1.1 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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`clients` requires slaves to have responded to master discover broadcasts first.
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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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