CUAV SKYE 2 — Intelligent Heated Airspeed Sensor

The CUAV SKYE 2 is a professional intelligent airspeed sensor designed for fixed-wing UAVs, VTOL aircraft, and autonomous aerial platforms operating in demanding environmental conditions.

Combining a high-precision differential pressure sensor, integrated Pitot tube, intelligent heating system, temperature and humidity sensors, and DroneCAN communication, the SKYE 2 provides reliable airspeed measurements for professional flight operations.

Its advanced anti-icing technology, automatic water drainage, and vibration-resistant design make it particularly suitable for aircraft operating in cold, humid, or challenging weather conditions.

Intelligent De-Icing System

The SKYE 2 features an integrated 35W heating system designed to prevent ice accumulation inside the Pitot tube.

Powered by CUAV’s M4C intelligent heating strategy, the system automatically manages temperature regulation to maintain suitable operating conditions.

35W Integrated Heating System

Intelligent Temperature Regulation

Automatic De-Icing

Protection Against Ice Accumulation

This technology helps reduce the risk of inaccurate airspeed measurements caused by frozen or obstructed Pitot tubes.

Integrated Water Drainage

The SKYE 2 incorporates a dedicated drainage system designed to evacuate water from the Pitot tube.

Its internal drainage channels help prevent water accumulation during operation in rain, fog, or humid environments.

Combined with intelligent heating, this design improves airspeed measurement reliability in challenging conditions.

High-Precision SM5391 Sensor

The SKYE 2 integrates an SM5391 differential pressure sensor.

This sensor provides accurate airspeed measurements with low temperature drift and high resistance to vibration.

Key measurement capabilities include:

Airspeed Range: 0–106 m/s

Maximum Airspeed: 381.6 km/h

Differential Pressure Range: ±6,895 Pa

Accuracy: ±1% Full Scale

These characteristics make the SKYE 2 suitable for a wide range of fixed-wing and VTOL aircraft.

Integrated Temperature & Humidity Sensors

The SKYE 2 includes dedicated temperature and humidity measurement capabilities.

Temperature Measurement Range: -20°C to +125°C

Humidity Measurement Range: 0–100% RH

These sensors provide environmental information used by the intelligent heating system.

They help optimize heating performance according to operating conditions.

Dual Temperature Compensation

The SKYE 2 features a dual temperature compensation system designed to improve measurement stability.

This technology reduces the influence of temperature variations on differential pressure measurements.

It is especially useful for aircraft operating across changing altitudes, temperatures, and environmental conditions.

STM32F412 Processor

The sensor integrates an STM32F412 microcontroller based on the Arm Cortex-M4 architecture.

Operating at 100 MHz, the processor manages differential pressure measurements, temperature compensation, intelligent heating, and DroneCAN communication.

Its dedicated processing architecture enables reliable sensor operation independently of the flight controller.

DroneCAN Communication

The SKYE 2 communicates through the DroneCAN protocol.

This digital communication system provides reliable transmission of airspeed information to compatible flight controllers.

DroneCAN also offers improved resistance to electromagnetic interference compared with conventional analog sensor connections.

The SKYE 2 is compatible with supported CUAV, Pixhawk, and other DroneCAN-enabled autopilot systems.

Advanced Anti-Vibration Design

The SKYE 2 uses a differential pressure sensor designed for high vibration resistance.

This makes it particularly suitable for fixed-wing UAVs powered by combustion engines, where vibration levels may be higher than on electric aircraft.

The sensor architecture helps maintain consistent airspeed measurements during demanding flight conditions.

Aerodynamic Pitot Tube Design

The SKYE 2 features a streamlined Pitot tube with a linear aerodynamic structure.

Its design reduces aerodynamic resistance while integrating the heating elements, pressure sensor, and drainage system.

This compact architecture simplifies installation compared with conventional Pitot systems using separate pressure sensors and external tubing.

IP54 Protection

The SKYE 2 supports an IP54 protection rating when installed according to CUAV’s requirements.

This provides protection against dust ingress and water splashes.

The protection rating depends on correct installation and does not make the module fully waterproof.

SKYE 2 HV HUB

The SKYE 2 uses a dedicated HV HUB to provide regulated power to the airspeed sensor.

The HV HUB accepts a wide input voltage range of 18–68V and delivers a regulated 16V output.

Input Voltage: 18–68V

Regulated Output: 16V / 3.5A

Weight: 9g

The hub integrates dedicated power and communication interfaces for the SKYE 2.

Important: The SKYE 2 requires the compatible SKYE 2 HV HUB and is not compatible with the previous-generation SKYE HUB.

ArduPilot & PX4 Compatibility

The SKYE 2 supports ArduPilot and PX4 autopilot platforms through DroneCAN communication.

Compatible systems include CUAV flight controllers, Pixhawk autopilots, and other supported UAV control systems.

Its digital airspeed measurements can be used for airspeed monitoring, flight control, navigation, and stall prevention.

Professional UAV Applications

The CUAV SKYE 2 is particularly suitable for:

Fixed-Wing UAVs

VTOL Aircraft

Long-Range UAV Platforms

Industrial Inspection Aircraft

Mapping and Surveying Drones

Agricultural Fixed-Wing UAVs

Combustion-Engine UAVs

Autonomous Aircraft

Research and Development Platforms

Technical Specifications

Product: CUAV SKYE 2
Brand: CUAV
Module Type: Intelligent Heated Airspeed Sensor

Processor: STM32F412
Processor Architecture: Arm Cortex-M4
Processor Frequency: 100 MHz
Flash Memory: 512 KB
RAM: 256 KB

Differential Pressure Sensor: SM5391
Measurement Range: ±6,895 Pa
Airspeed Measurement Range: 0–106 m/s
Maximum Airspeed: 381.6 km/h
Measurement Accuracy: ±1% FS

Temperature Measurement Range: -20°C to +125°C
Humidity Measurement Range: 0–100% RH

Temperature Compensation: Dual Compensation System
Heating Technology: Resistive Heating
Pitot Tube Heating Power: 35W
Intelligent Heating: Supported
Automatic De-Icing: Supported
Water Drainage: Integrated

Communication Protocol: DroneCAN

Operating Voltage — Sensor: 16V
Operating Voltage — HV HUB: 18–68V
HV HUB Regulated Output: 16V / 3.5A

Operating Temperature: -20°C to +85°C
Protection Rating: IP54 — With Correct Installation

Dimensions: Approximately 102 × 28.2 × 30.5 mm
Weight: Approximately 26.1g

Flight Controller Compatibility: CUAV / Pixhawk / Compatible DroneCAN Autopilots
Firmware Compatibility: ArduPilot / PX4

HV HUB Technical Specifications

Module: CUAV SKYE 2 HV HUB

Input Voltage: 18–68V
Output Voltage: 16V
Maximum Output Current: 3.5A

Power Input: 1×
SKYE CAN Interfaces: 2×
CAN Interface: 1× 4-Pin JST-GH 1.25mm

Weight: 9g

What’s Included

1× CUAV SKYE 2 Intelligent Airspeed Sensor

HV HUB, connection cables, and mounting accessories depend on the selected package configuration.

The SKYE 2 requires a compatible SKYE 2 HV HUB for normal operation.

The previous-generation SKYE HUB is not compatible with SKYE 2.

Flight controller, battery, and other UAV accessories are not included unless specified.

The IP54 protection rating is achieved only when the sensor is installed according to the manufacturer’s requirements.