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
USB-TTL Port
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
GND
-
Ground