Holybro DroneCAN Airspeed Sensor DLVR-L10D

The Holybro DroneCAN Airspeed Sensor reads differential pressure from a pitot tube and reports airspeed to the flight controller over DroneCAN, the input ArduPilot and PX4 use for airspeed-based speed control and stall protection on planes and VTOLs. This version carries the DLVR-L10D sensor, with a 2500 Pa range covering airspeeds up to 226.8 km/h.

Key features

• DLVR-L10D digital pressure sensor with CoBeam technology: under 1% error and low temperature drift
• 14-bit pressure resolution
• STM32G473CE processor running ArduPilot AP_Periph firmware, so it shows up as a standard DroneCAN airspeed node
• Works with any ArduPilot or PX4 flight controller that has a CAN port
• Durable aluminium shell

Specifications

• MCU: STM32G473CE, 170 MHz, 128 KB RAM, 512 KB flash
• Sensor: DLVR-L10D
• Pressure range: 2500 Pa
• Burst pressure: 75 kPa
• Airspeed range: 0–226.8 km/h (141 mph)
• Accuracy: under 1% error
• Firmware: AP_Periph (DroneCAN)
• Interface: CAN, standard 4-pin connector
• Supply: 4.75–5.25 V, about 100 mA
• Operating temperature: −20 to 85 °C
• Dimensions: 29 × 35.5 × 16.5 mm (module); 91.5 × 28 × 30 mm (pitot tube)
• Weight: 38.3 g with pitot tube and tubing

Mount the pitot tube where it sees clean, undisturbed airflow, away from propeller wash. For airframes that fly faster than 226 km/h, Holybro's DLVR-L20D version extends the range to 5000 Pa and 320 km/h.