han-mqtt-adapter/README.md

Han Mqtt Adapter

Han port pinout:

1. 5V
2. Data request (connect to 5V to enable)
3. GND
4. NC
5. DATA (TX 115200 inverted)
6. GND

Add voltage divider to Pico RX pin:

• 10k between pico RX pin and GND
• 10k between HAN pin 5 and pico RX pin