Pinout

UART / I2C Port

The module uses a 6-pin and 4-pin JST-GH connector following the Pixhawk standard.

Pin	Name	Direction	Description
1	5V	Input	Power input (regulated 5V)
2	RX	Input	UART RX (to GNSS module)
3	TX	Output	UART TX (from GNSS module)
4	SCL	Output	I²C Clock for BMM350 (3.3V logic)
5	SDA	Bidirectional	I²C Data for BMM350 (3.3V logic)
6	GND	—	Ground