feat: implement DHT22 temperature/humidity sensor driver #2
Description
Description
Create a driver for the DHT22 temperature and humidity sensor 鈥?the most common sensor in Clawland kits.
Requirements
- Read temperature and humidity from DHT22
- Configurable GPIO pin
- Error handling for sensor read failures
- JSON output format compatible with PicoClaw reporting
Skills
C/C++, ESP32, sensor interfacing