Specification

CM5 & System Support

Feature	Description
Power Input	7V – 28V (3S-6S LiPo), XT30 Connector
Overcurrent Protection	5A Maximum
Power Monitor	Internal Voltage & external I2C Current Monitor
Supported Raspberry Modules	Compute Module 5
Camera Interface	2 × 22-Pin, 0.5 mm pitch CSI
PCIe	M.2 Key-M 2230 & 2242 slot (PCIe Gen2 x1)
USB	2 × USB 3.0 Type-C, Micro USB 2.0 (host)
Ethernet	1 × 8-Pin, 1 Gbps
GPIO	6-Pin
HDMI Output	Mini HDMI
I2C	2 -> I2C1 / I2C3
UART	1 -> UART2
SPI	CAN -> SPI1_CS0
	External -> SPI1_CS1
	BMI270 -> (SPI1_CS2)
FMU ↔ CM5 Communication	FMU USART2 (TELEM3) ↔ UART3 (CM5)
Cooling	Active and Passive

FMU System Support

Feature	Description
Supported Firmware	ArduPilot, PX4
Power Regulation	5V rail, shared 5V bus with CM5 (no separate regulation)
Power Distribution	Onboard regulated
FMU Processor	STM32H753IIK6 (32-bit Arm® Cortex®-M7, 480MHz, 2MB flash memory, 1MB RAM)
IO Processor	STM32F103 (32 Bit Arm® Cortex®-M3, 72MHz, 64KB SRAM)
FMU Status LEDs	3x LEDs (Red, Green, Blue)
IO Status LEDs	3x LEDs (Blue, Amber, Green)
Cooling	No active cooling
TELEM	TELEM1 (UART7)
	TELEM2 (UART5)
GPS	Full 10-pin JST-GH (UART1, I2C1, 5V Out)
	Basic 6-pin JST-GH (UART8, I2C2, 5V Out)
USB	USB Type-C 5V
SD Card	MicroSD SDMMC interface
CAN	1
I2C	I2C2 / I2C3
UART	UART4
External SPI	11-pin JST-GH (SPI6, 2x CS, 2x DRDY, RESET)
RC / SBUS	PPM, S.BUS (5-pin JST-GH)
PWM Outputs	8 Channels FMU + 8 Channels IO (10-pin JST-GH)
Ethernet	4-pin JST-GH (LAN8742AI PHY)
FMU/IO Debug Interface	SWD (10-pin JST-SH)
CM5 Link	UART or Ethernet
FMU Onboard Sensors	IMU: ICM-42670-P (SPI), Barometer: BMP390 (I2C), FRAM: FM25V02A, EEPROM: AT24C02D
Sensor Board	IMU1: BMI270 (SPI), IMU2: ICM-42670-P (SPI), Barometer: BMP390 (I2C), Magnetometer: BMM350 (I2C), EEPROM: 24LC64T