Matek AP_Periph CAN Node L431

Description

The Matek AP_Periph CAN Node L431is a powerful DroneCAN adapter nodedesigned to expand ArduPilot-supported peripheralsvia the DroneCAN bus. Built around the STM32L431xC MCU (256KB Flash), this module enables seamless conversion of GNSS, compass, barometer, airspeed sensors, and GPIO-based peripheralsto DroneCAN-compatibledevices.

With high-speed CAN communication (up to 1 Mbit/s), multiple UART, I2C, SPI, and ADC interfaces, and 5 PWM outputs, the CAN-L431is ideal for customizing and optimizing UAV and drone systems. This module supports ArduPilot AP_Periph firmwareand can be easily updated via the DroneCAN GUI Tool.

Designed for reliable performance in extreme conditions (-20°C to 80°C), the CAN-L431is a must-have for advanced drone builders, UAV enthusiasts, and developerslooking to integrate high-precision peripherals into a robust CAN network.

Specifications:

Core Features:

• MCU:STM32L431xC (256KB Flash)
• DroneCAN Protocol:1x CAN bus (2x JST-GH-4P connectors)
• CAN Transceiver:Up to 1 Mbit/s

Interface & Connectivity:

• 3x UART Ports:
  • UART1: Spare
  • UART2: MSP default, DFU
  • UART3: GPS default
• 1x I2C Port:
  • Supports airspeed sensors, barometers, and compass (QMC5883L)
• 1x SPI Port:
  • Supports RM3100 magnetometer
• 4x ADC Inputs:
  • BATT_VOLT (Pin 5), BATT_CURR (Pin 6)
  • BATT2_VOLT (Pin 15), BATT2_CURR (Pin 16)
• 5x PWM Outputs
• 1x GPIO:TIM16 for buzzer/LED notifications
• ST Debugging Ports:SWCLK & SWDIO

Power & Environmental:

• Input Voltage:4.5V – 5.5V (via 5V pad/pin)
• Power Consumption:40mA
• Operating Temperature:-20°C to 80°C

LED Indicators:

• Blue (Fast Blink):Booting
• Blue (Slow Blink):Working
• Red LED:3.3V Power Indicator

Physical Dimensions & Package Contents:

• Board Size:26mm x 26mm x 6mm
• Weight:3.7g
• Included Accessories:
  • 1x CAN-L431 Board
  • 1x JST-GH-4P to JST-GH-4P 20cm Silicon Wire
  • 1x JST-GH-6P to JST-GH-6P 20cm Silicon Wire

Firmware & Compatibility:

• Firmware:ArduPilot AP_Periph(MatekL431-Periph or MatekL431-Airspeed)
• Update Method:DroneCAN GUI Tool
• 3D Model:Available (CAN-L431_STEP.zip)