han-mqtt-adapter/README.md

Han Mqtt Adapter

Protocol

link to HAN protocol

Hardware

Han port pinout (RJ12):

1. 5V (max 250mA)
2. Data request (connect to 5V to enable)
3. Data GND
4. NC
5. Data (TX 115200 inverted open drain)
6. GND

PicoW connection:

• Connect HAN port pin 1 and 2 to pico 5V
• Connect HAN port pin 3 and 6 to pico GND
• Connect HAN port pin 5 to pico 1 (RX)
• Add pullup resistor (15k) between Pico RX pin and 3V3