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Holybro Digital Air Speed Sensor (MS5525DSO) with PT40 Pitot Tube

₹10,039.00 (Inclusive of all taxes)
Out of Stock

The Holybro Digital Air Speed Sensor (MS5525DSO) is a high-precision, low-noise sensor designed for accurate airspeed measurement in UAVs, integrating a 24-bit ΔΣ ADC and a PT40 pitot tube for compatibility with ArduPilot and PX4 flight stacks.

Features

  • Integrated 24-bit ΔΣ ADC for high-resolution pressure measurement.
  • Low-noise digital output eliminates signal degradation over long cables.
  • Wide operating voltage range from 1.8V to 3.6V with ultra-low power consumption.
  • Includes PT40 pitot tube and 40cm rubber tubing for direct installation.
  • Fully compatible with Holybro autopilots running ArduPilot or PX4 firmware.

Out of stock

Description

The Holybro Digital Air Speed Sensor utilizes the MS5525DSO digital pressure sensor, which provides a significant advantage over traditional analog sensors by outputting digital pressure and temperature data directly. This design eliminates the noise and offset errors commonly induced by long cable runs and ratiometric signal conditioning, ensuring reliable airspeed data for autonomous navigation and flight stabilization.

Engineered for integration with professional UAV platforms, the sensor features barbed pressure ports for secure tubing connections and supports both I2C and SPI communication protocols. Its small outline IC package and low-power operation make it suitable for long-endurance flights where accurate airspeed feedback is critical for efficient flight path management and wind estimation.

Key Features

  • High-resolution 24-bit delta-sigma ADC for precise differential pressure measurement.
  • Digital output eliminates analog signal noise and ground offset issues.
  • Ultra-low power operation with standby current under 0.15 µA.
  • Fast conversion time down to 1 ms for real-time airspeed feedback.
  • Robust barbed pressure ports ensure a secure, leak-free connection to the pitot tube.
  • Wide pressure measurement range from 1 to 30 PSI.
  • Dual communication interface support for I2C and SPI protocol flexibility.
  • Direct plug-and-play compatibility with Holybro flight controllers via included 4-pin GH cable.

Applications

  • Fixed-wing UAVs requiring precise airspeed data for autonomous navigation and stall prevention.
  • VTOL (Vertical Take-Off and Landing) platforms integrating airspeed feedback for transition control.
  • Mapping and surveying drones utilizing wind estimation for improved flight efficiency.
  • Racing or long-range FPV aircraft where airspeed is used for telemetry and performance logging.
  • Research and development platforms running ArduPilot or PX4 for advanced flight control algorithms.

Technical Specifications

Sensor ModelMS5525DSO
Pressure Range1 to 30 PSI
Operating Voltage1.8V to 3.6V
ADC Resolution24-bit ΔΣ
Conversion TimeDown to 1 ms
Standby Current< 0.15 µA
Communication InterfaceI2C, SPI
Included Pitot TubePT40
Included Tubing40cm Rubber
Included CableGH 4-Pin

Frequently Asked Questions

What flight controllers is this Holybro airspeed sensor compatible with?

The sensor is designed for direct compatibility with Holybro's range of autopilot flight controllers, such as the Pixhawk 6X, running ArduPilot or PX4 firmware. It connects via the provided GH 4-pin cable to dedicated airspeed sensor ports or any available I2C/SPI telemetry port. Ensure your flight controller firmware is configured to read from the correct sensor bus.

What is the operating voltage range, and how is it powered?

The MS5525DSO sensor operates from 1.8V to 3.6V. It is typically powered from a regulated 3.3V rail on the flight controller. The included cable connects directly to compatible ports on Holybro boards. For other controllers, ensure you provide a clean 3.3V supply and connect the I2C or SPI lines accordingly.

How do I install and calibrate the PT40 pitot tube with this sensor?

Connect the PT40 pitot tube to the sensor's barbed ports using the included 40cm rubber tubing, ensuring the static and dynamic pressure ports are correctly oriented (usually marked). Mount the pitot tube in clean airflow, away from prop wash. Calibration is performed within ArduPilot or PX4 Ground Control Station (GCS) software by following the airspeed sensor calibration wizard, which zeroes the sensor and sets scaling.

Package Includes

  • 1x Digital Air Speed Sensor (MS5525DSO)
  • 1x PT40 Pitot Tube
  • 1x 40cm Rubber Tubing
  • 1x GH 4-Pin Cable

Additional Information

Weight 0.03 kg
Dimensions 17 × 15 × 3 cm