Matek AP Periph CAN Node CAN-G474 DroneCAN Adapter Board, STM32G474CE 512KB, CANFD 5Mbit/s

Overview

This AP Periph CAN Node, the Matek AP Periph CAN Node CAN-G474, is an ArduPilot AP_Periph adapter node designed to add peripherals to a DroneCAN bus using a 5Mbit/s CAN transceiver and an STM32G474 MCU. It enables ArduPilot-supported sensors and GPIO-based peripherals (such as PWM outputs and LED notify modules) to be integrated through DroneCAN.

Key Features

• Adapter node based on ArduPilot AP_Periph firmware
• STM32G474CE MCU with 512KB Flash
• CANFD-capable hardware with CAN/CANFD support from 1Mbit ~ 5Mbit
• 2x CAN bus
• 4x UARTs for GNSS, Rangefinder, Proximity, EFI, RC input (receiver); MSP enabled on TX3 by default for GNSS, Compass, Barometer over MSP
• 2x I2C bus for I2C peripherals (Airspeed sensor, Barometer, Compass)
• 1x SPI for RM3100 (SPI pads on bottom side with “CS, MOSI, MISO, SCK” silkprint)
• 11x PWM outputs for Servos and ESC; all PWMs support DMA/DShot (PWM1-10 on DuPont 2.54mm holes; PWM11 pad on bottom side with “11” silkprint)
• Firmware update support via DroneCAN GUI Tool / Mission Planner (DroneCAN Tab) and via STM32CubeProgrammer DFU mode (UART1)

Specifications

What’s Included

• 1x CAN-G474 board
• 2x JST-GH-4P to JST-GH-4P 20cm silicon wire
• 1x JST-GH-6P to JST-GH-6P 20cm silicon wire

Customer service: https://rcdrone.top/ or support@rcdrone.top

Applications

• Convert ArduPilot-supported peripherals to DroneCAN bus peripherals (GNSS, Compass, Barometer, Airspeed sensor, Rangefinder, Proximity sensor, Electronic Fuel Injectors)
• GPIO-based peripherals on DroneCAN, including PWM and LED notify modules
• Example peripheral connections shown: Rangefinder, GPS & Compass, AirSpeed Sensor, RC INPUT, I2C BATT_MONITOR
• Redundancy option: connect either one CAN bus to the flight controller, or connect both

Manuals

• Firmware downloads (ArduPilot AP_Periph): https://firmware.ardupilot.org/AP_Periph/
  • MatekG474-Periph (for peripheral sensors)
  • MatekG474-DShot (for DroneCAN-PWM output)
• Update methods
  • DroneCAN GUI Tool or Mission Planner – DroneCAN Tab, load “AP_Periph.bin”
  • STM32CubeProgrammer DFU mode: connect USB-TTL module to UART1, plug USB while holding the DFU button, load “AP_Periph_with_bl.hex”
• 3D file: CAN-G474_STEP.zip
• Tutorial: Using MatekL431 adapters for PWM and DShot

Details

The Matek CAN-G474 board provides a DroneCAN/CAN port alongside UART, I2C, and PWM pads for connecting common autopilot peripherals.

The Matek CAN-G474 board connects to a CAN/DroneCAN bus and breaks out up to 10 PWM outputs for servos or ESCs.