CAN transceivers

The RDDRONE-FMUK66 features two CAN (Controller Area Network) busses. PX4 implements the UAVCAN protocol, and supports some motor controllers, sensors and GPS solutions with a CAN interface. The current HoverGames kit does not include any hardware with a CAN interface, except the FMU itself.

https://dev.px4.io/en/uavcan/dev.px4.io

Connector pinout

Pin	Signal	Voltage
1	VCC	+5.0V
2	CAN H	+3.3V
3	CAN L	+3.3V
4	GND	GND

RDDRONE-FMUK66 Rev. C schematics

RDDRONE-FMUK66 Rev. B schematic

Rev. B (and older boards) are not supported anymore. This information is left for reference.