Matek Digital Airspeed Sensor ASPD-AUAV

The ASPD-AUAV Digital AirSpeed Sensor delivers accurate and responsive airspeed data for fixed-wing flight controllers. Compact and lightweight, it ensures reliable readings across a wide range of conditions, making it ideal for precision flight, navigation, and autopilot systems.

Specifications

• ArduPilot AP_Periph L431 CAN node
• All sensors AUAV-L30D
• CAN & I2C Interface
• CAN JST-GH connector, DroneCAN Protocol
• I2C JST-GH connector, AUAV-L30D I2C mode
• TX2, MSP protocol
• CAN bootloader LED, Blue
  • Fast blinking, AP_Periph bootloader
  • Slow blinking, CAN Node ready
• 3.3V Power LED, Red
• Input voltage range: 4.5~5.5V
• Power consumption: 26mA
• Operating Temperatures: -30C to 85C
• Pressure Range: 7500Pa ( 30 inH2O)
• Burst Pressure: 103kPa
• Speed Range: 400 km/h(111 m/s)
• 36mm*32mm*7.3mm
• 5g
• 3D step file ASPD-AUAV_STEP.zip

Includes

• 1x ASPD-AUAV
• 2x JST-GH-4P to JST-GH-4P 20cm silicon wire
• Pitot Tube
• Clear silicon tubing 40cm

AP_Periph & DroneCAN protocol

• Firmware https://firmware.ardupilot.org/AP_Periph/latest/MatekL431-AUAV/
• AP_Periph https://github.com/ArduPilot/ardupilot/blob/master/Tools/AP_Periph/README.md
• DroneCAN protocol https://dronecan.github.io/

Wiring and AP Parameters

CAN	or	I2C	or	UART
ASPD-AUAV	FC		ASPD-DUAV	FC		ASPD-DUAV	FC
5V CANH CANL G	4.5-5.5V CAN High CAN Low GND		5V SCL SDA G	4.5-5.5V SCL SDA GND		5V G TX2	4.5-5.5V GND spare UART_RX
ARSPD*_USE ARSPD*_TYPE	1 8 (UAVCAN)		ARSPD*_USE ARSPD*_TYPE	1 19 (AUAV-30in)		ARSPD*_USE ARSPD*_TYPE	1 14 (MSP)
				SERIAL*_BAUD SERIAL*_PROTOCOL	115 (115200) 32 (MSP)

Tips

• CAN Baro is enabled by default, If you dont use the Baro integrated in AUAV, set BARO_ENABLE = 0 in Mission Planner->Initial Setup->Optional Hardware->UAVCAN->MAVlink CANx -> Menu Parameters
• ArduPilot has removed AUAV I2C support by default on flight controller with 1MB flash MCU(such as F405, F745 series).

AUAV vs DLVR

• Speed range 400km/h vs 227km/h
• AUAV has better offset in still air.

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