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- laurigates/mcu-tinkering-lab
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- April 6, 2026 at 11:17
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SKILL.md
Source instructions · Read-only preview- name
- flash
- description
- Flash firmware to an ESP32 device
- argument-hint
- [project-name] [port]
- allowed-tools
- Bash(just:*), Bash(esptool*), Bash(ls:*)
# Flash Firmware to ESP32 Device
Flash compiled firmware to an ESP32 device. Flashing runs natively (not in container).
## Parse Arguments
$ARGUMENTS may contain:
- Project name (first word)
- Serial port (second word, or auto-detected)
## Available Projects
- `robocar-main` or `main`, `robocar-cam` or `cam`
- `webserver`, `i2s-audio` or `audio`, `telegram`
- `kids-audio`, `xbox`, `wifitest`
## Port Auto-Detection
Ports are auto-detected by `tools/esp32.just`:
- USB-serial adapters (CH340/CP2102): `ls /dev/cu.usbserial-*`
- ESP32-S3 native USB: detected by Espressif VID `0x303a`
- Override with: `PORT=/dev/... just <module>::flash`
## Flash Commands
Based on $ARGUMENTS:
- `robocar-main`: `just robocar::flash-main`
- `robocar-cam`: `just robocar::flash-cam`
- `webserver`: `just webserver::flash`
- `i2s-audio`: `just i2s-audio::flash`
- `telegram`: `just telegram::flash`
- `kids-audio`: `just kids-audio::flash`
- `xbox`: `just xbox::flash`
- `wifitest`: `just wifitest::flash`
## ESP32-CAM Note
For ESP32-CAM projects (robocar-cam, webserver, i2s-audio, telegram):
- Remind the user: "Connect GPIO0 to GND before flashing"
- After successful flash: "Disconnect GPIO0 from GND and reset the device"
## Error Handling
If flashing fails:
1. Check if port exists and is accessible
2. Suggest checking USB connection
3. For permission errors, suggest: `sudo chmod 666 /dev/xxx`
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