The MATEKSYS CAN-G474 enhances drone communication with its high-speed 5 Mbit/s CAN transceiver and STM32G474 MCU, built on ArduPilot’s AP_Periph firmware. It supports seamless integration of ArduPilot peripherals like GNSS, Compass, Barometer, and Rangefinders into DroneCAN systems, as well as GPIO-based devices such as PWM and LED notify modules, offering a simple solution for expanding drone functionality.

• ArduPilot Driver Library Compatibility
• ArduPilot AP_Periph Firmware
• 5 Mbit/s CAN Transceiver
• STM32G474 MCU
• CANFD Capability

• UART1 (TX1, RX1): supports firmware updates in DFU mode
• ST debug: SWC & SWD (on the bottom side)
• CAN transceiver: Data rates up to 5 Mbit/s
• Input voltage range: 4.55.5V @5V pad/pin
• MCU: STM32G474CE, 512KB Flash
• Operating temperature: -3085°C
• Power consumption: 62mA
• CAN bus: 2x
• UARTs: 4X
  • Supports GNSS, Compass, and Barometer sensors over MSP protocol. MSP is enabled on TX3 by default
  • For peripheral GNSS, Rangefinder, Proximity, EFI, RC input (receiver)
• SPI: 1x
  • SPI pads for RM3100 are on the bottom side, with “CS, MOSI, MISO, SCK” silk print
  • For peripheral RM3100
• I2C bus: 2x
  • For peripheral I2C Airspeed sensor, Barometer, Compass
• PWM outputs: 11x
  • For Servos and ESC; all PWMs support DMA/DShot
  • PWM11 pad is on the bottom side, with an “11” silkprint
  • PWM1-10 on DuPont 2.54mm holes

PHYSICAL

• 5x JST-GH-4P (SM04B-GHS-TB): CAN1, CAN2, I2C1, UART1, and UART4
• 1x JST-GH-6P (SM06B-GHS-TB):UART3 + I2C2
• Board size: 36mm x 36mm x 6mm, 5.2g
• Mounting: 30.5mm, 4x Dia. 3mm
• Holes: 18x DuPont 2.54mm hole

LED

• Blue, Slow blinking: Communicating with the flight controller
• Blue, Fast blinking: Booting
• Red: 3.3V indicator

• ArduPilot AP_Periph Manual for peripheral Sensors
• ArduPilot AP_Periph Manual for DroneCAN Output

• 1x MATEKSYS AP Periph Adapter Node – CAN-G474
• 2x JST-GH-4P to JST-GH-4P 20cm silicon wire
• 1x JST-GH-6P to JST-GH-6P 20cm silicon wire