# 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 pullup resistor between Pico RX pin and 3V3

![front](20220814_231222.MEDIUM.jpeg)
![back](20220814_231229.MEDIUM.jpeg)
![mounted](20220814_231330.MEDIUM.jpeg)