40 Pin GPIO
The full Raspberry Pi 40 pin GPIO is available through pads on the main board. Please note that there are some specific changes implemented that may cause issues with some hats. The UART is normally connected to the flight controller (if jumper fitted) and the I2C lines have been used for dual cameras. For more information see
Please orient using the silk screen. Designed for a 40 pin FPC 0.5mm pitch connector (not populated). Manufacturer: HDGC, Part Number: 0.5K-A-40PB, LCSC Part Number: C2914160.
3v3
5v
GPIO 2
5v
GPIO 3
GND
GPIO 4
Tx
GND
Rx
GPIO 17
GPIO 18
GPIO 27
GND
GPIO 22
GPIO 23
3v3
GPIO 24
GPIO 10
GND
GPIO 9
GPIO 25
GPIO 11
GPIO 8
GND
GPIO 7
ID_SD
ID_SC
GPIO 5
GND
GPIO 6
GPIO 12
GPIO 13
GND
GPIO 19
GPIO 16
GPIO 26
GPIO 20
GND
GPIO 21
If you are using a CBU-CM405-FC-ESC-**** Board it will cover the pads and make them not accessible. If you require use of the GPIO please use the CBU-CM405-BO which will leave them exposed.
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