CUAV X25 EVO — Professional Intelligent Autopilot Flight Controller

The CUAV X25 EVO is a next-generation industrial-grade autopilot designed for professional UAVs, fixed-wing aircraft, VTOL platforms, multirotors, helicopters, and autonomous robotic systems.

Powered by a high-performance STM32H753 processor operating at 480 MHz, the X25 EVO combines triple redundant industrial-grade IMUs, dual barometers, an RM3100 electronic compass, and advanced vibration isolation technology.

Featuring 16 PWM outputs, dual CAN buses, 100 Mbps Ethernet connectivity, and a wide-range power supply architecture, the X25 EVO delivers a versatile flight-control solution for demanding autonomous applications.

Fully compatible with ArduPilot and PX4, it provides extensive connectivity, advanced sensor redundancy, and flexible integration into professional unmanned platforms.

High-Performance STM32H7 Processor

The X25 EVO integrates an STM32H753 processor based on the Arm Cortex-M7 architecture.

Operating at 480 MHz, it provides the processing performance required for advanced flight-control algorithms, sensor fusion, autonomous navigation, and complex UAV applications.

The processor supports demanding autopilot functions, including:

Advanced Sensor Fusion

FFT-Based Filtering

IMU Temperature Learning

Lua Scripting

Non-GPS Navigation

Autonomous Flight Control

Its advanced processing architecture provides additional flexibility for firmware development and future system integration.

Triple Redundant Industrial-Grade IMUs

The X25 EVO features three independent TDK industrial-grade inertial measurement units:

2× IIM-42653 Accelerometer & Gyroscope

1× IIM-42652 Accelerometer & Gyroscope

This redundant architecture improves measurement reliability and allows compatible autopilot firmware to detect sensor inconsistencies.

The IIM-42653 sensors provide a gyroscope measurement range of ±4,000°/s and an accelerometer measurement range of ±32 g.

The IIM-42652 provides a gyroscope measurement range of ±2,000°/s and an accelerometer measurement range of ±16 g.

Together, these sensors deliver reliable inertial measurements for demanding UAV operations.

Fourth-Generation Vibration Isolation

The X25 EVO incorporates CUAV’s patented fourth-generation tilt-symmetric damping matrix.

This advanced vibration isolation system reduces the transmission of mechanical vibrations to the internal inertial sensors.

It helps minimize disturbances caused by:

Electric Motors

Propellers

Aircraft Structures

Combustion Engines

High-Frequency Mechanical Vibrations

The controller also supports an additional external vibration isolation system for more demanding installations.

Dual Temperature Compensation

The X25 EVO features an advanced dual temperature compensation system.

The integrated IMU temperature control and motherboard thermal regulation work together to maintain stable operating conditions for critical components.

This architecture helps reduce temperature-related measurement drift and improves sensor consistency during operation in changing environmental conditions.

Industrial RM3100 Electronic Compass

The controller integrates an industrial-grade RM3100 three-axis magnetometer.

This high-sensitivity compass provides magnetic field measurements for aircraft heading estimation.

Its industrial design makes it suitable for professional UAV applications requiring reliable magnetic measurements.

External compass modules can also be connected when required.

Dual Barometer System

The X25 EVO incorporates two independent barometric pressure sensors:

TDK ICP-20100

Bosch BMP581

This dual-sensor architecture provides additional redundancy for altitude estimation and atmospheric pressure measurements.

The redundant configuration helps improve measurement reliability during professional autonomous operations.

16 PWM Outputs

The X25 EVO provides 16 PWM outputs for motors, ESCs, servos, and actuators.

Its integrated bidirectional level converter supports configurable PWM signal voltages:

3.3 V PWM

5 V PWM

The 5 V configuration can improve signal compatibility when using long wiring, capacitive loads, or high-impedance equipment.

This flexibility makes the X25 EVO suitable for complex multirotor, fixed-wing, and VTOL configurations.

Dual CAN Bus Connectivity

The X25 EVO features two independent CAN buses with five physical CAN connections.

CAN1: 3 Connections

CAN2: 2 Connections

These interfaces allow integration with compatible professional UAV equipment, including:

DroneCAN GNSS Modules

RTK Positioning Systems

Electronic Compasses

Intelligent ESCs

Smart Batteries

Airspeed Sensors

CAN Power Modules

This architecture enables communication with multiple onboard devices and supports advanced system monitoring.

100 Mbps Ethernet Connectivity

The X25 EVO includes a 100 Mbps Ethernet interface.

This high-speed connection supports communication with compatible onboard computers, intelligent payloads, and network-based equipment.

Potential applications include:

Companion Computers

AI Processing Systems

IP Cameras

Intelligent Gimbals

Autonomous Navigation Systems

Industrial Network Devices

Ethernet connectivity makes the X25 EVO suitable for advanced unmanned systems requiring high-speed data exchange.

Wide-Range Power Supply Architecture

Unlike conventional 5 V flight controllers, the X25 EVO features an upgraded 10–18 V power supply architecture.

This design improves power regulation efficiency and provides additional flexibility for professional UAV integration.

The baseboard incorporates a high-power DC-DC converter and supports regulated 5 V output for compatible external equipment.

PMU 2 Lite Power Management

The X25 EVO is supplied with CUAV’s PMU 2 Lite power management module.

This intelligent CAN-based module provides high-precision battery voltage and current monitoring.

Its main features include:

Input Voltage: 20–70 V

Current Measurement Range: Up to 220 A

Digital CAN Communication

High-Precision Voltage & Current Monitoring

Temperature Compensation

The PMU 2 Lite provides regulated power to the X25 EVO and transmits electrical measurements to the flight controller.

The standard configuration uses the compatible 15 V PMU 2 Lite version.

Detachable CORE Architecture

The X25 EVO features a detachable CORE module design.

This modular architecture simplifies maintenance and provides flexibility for professional system integration.

The CORE and baseboard architecture also allows CUAV to offer different hardware configurations for specialized unmanned applications.

Integrated RGB Status Indicator

The controller includes a multifunction RGB LED indicator.

It provides visual feedback for important system information, including:

Flight Controller Status

Aircraft Arming Status

GNSS Positioning

Battery Status

System Warnings

Device Faults

This simplifies aircraft preparation, diagnostics, and maintenance.

Extensive Peripheral Connectivity

The X25 EVO provides a comprehensive selection of interfaces for professional UAV integration.

16× PWM Outputs

2× GPS Interfaces

2× Telemetry Interfaces

1× UART4 Interface

2× CAN Buses — 5 Physical Connections

3× I2C Interfaces

1× Ethernet Interface

1× SPI6 Expansion Interface

2× CAN Power Inputs

1× RC Receiver Input

1× RSSI Input

1× ADC 3.3 V Input

1× ADC 6.6 V Input

1× Debug Interface

1× USB Type-C Interface

These connections allow integration with navigation systems, telemetry equipment, receivers, sensors, power management modules, and professional UAV payloads.

ArduPilot & PX4 Compatibility

The X25 EVO supports both ArduPilot and PX4 autopilot firmware.

Compatible vehicle categories include:

Multirotor UAVs

Fixed-Wing Aircraft

VTOL Platforms

Helicopters

Unmanned Ground Vehicles

Unmanned Surface Vehicles

Autonomous Robotic Systems

The controller supports advanced autonomous navigation and flight-control functions available through compatible firmware.

Professional UAV Applications

The CUAV X25 EVO is particularly suitable for:

Industrial Multirotor UAVs

Professional VTOL Aircraft

Long-Range Fixed-Wing Platforms

Agricultural Drones

Mapping and Surveying UAVs

Industrial Inspection Platforms

Autonomous Ground Vehicles

Research and Development Systems

Its combination of industrial-grade sensors, advanced vibration isolation, Ethernet connectivity, and high-current power monitoring makes it an excellent choice for professional UAV integration.

Technical Specifications

Product: CUAV X25 EVO
Brand: CUAV
Module Type: Industrial-Grade Intelligent Autopilot Flight Controller

Main Processor: STM32H753
Processor Architecture: Arm Cortex-M7
Processor Frequency: 480 MHz

Primary IMU: IIM-42653
Secondary IMU: IIM-42652
Third IMU: IIM-42653
IMU Configuration: Triple Redundant

IIM-42653 Gyroscope Range: ±4,000°/s
IIM-42653 Accelerometer Range: ±32 g

IIM-42652 Gyroscope Range: ±2,000°/s
IIM-42652 Accelerometer Range: ±16 g

Electronic Compass: RM3100

Primary Barometer: TDK ICP-20100
Secondary Barometer: Bosch BMP581

Vibration Isolation: Fourth-Generation Tilt-Symmetric Damping Matrix
External Vibration Isolation: Supported
IMU Temperature Compensation: Dual Temperature Compensation System

PWM Outputs: 16
PWM Signal Voltage: Selectable 3.3 V / 5 V

CAN Buses: 2
CAN1 Connections: 3
CAN2 Connections: 2

GPS Interfaces: 2
Telemetry Interfaces: 2
UART4 Interface: 1
I2C Interfaces: 3
SPI6 Expansion Interface: 1

Ethernet Interface: 100 Mbps

RC Input: PPM / SBUS / DSM
RSSI Input: 1
ADC 3.3 V Input: 1
ADC 6.6 V Input: 1

CAN Power Inputs: 2
Debug Interface: DSU
USB Interface: USB Type-C

Flight Controller Power Input: 10–18 V
USB Input Voltage: 4.75–5.25 V

Standard Power Module: CUAV PMU 2 Lite — 15 V Version
PMU 2 Lite Input Voltage: 20–70 V
PMU 2 Lite Current Measurement Range: Up to 220 A

Operating Temperature: -20°C to +85°C

Dimensions: 76.5 × 45.45 × 32.2 mm
Weight: 110 g — Flight Controller

Architecture: Detachable CORE / Baseboard

Firmware Compatibility: ArduPilot / PX4

Available Configurations

X25 EVO — Standard Controller

Includes the X25 EVO flight controller and PMU 2 Lite power management module.

X25 EVO + NEO 3 Pro

Includes the standard controller configuration with a CUAV NEO 3 Pro GNSS module.

X25 EVO + NEO 3X

Includes the standard controller configuration with a CUAV NEO 3X GNSS module.

X25 EVO + NEO 4 SE

Includes the standard controller configuration with a CUAV NEO 4 SE GNSS module.

X25 EVO + NEO 4 Nano

Includes the standard controller configuration with a CUAV NEO 4 Nano GNSS module.

X25 EVO + C-RTK 9Ps

Includes the standard controller configuration with the selected C-RTK 9Ps positioning solution.

X25 EVO + C-RTK 2HP

Includes the standard controller configuration with the selected high-precision RTK positioning and heading solution.

X25 EVO + C-RTK 3 G5

Includes the standard controller configuration with the selected C-RTK 3 G5 RTK positioning system.

X25 EVO + C-RTK 3 X20P

Includes the standard controller configuration with the selected C-RTK 3 X20P RTK positioning system.

What’s Included

Standard X25 EVO Package

1× CUAV X25 EVO Flight Controller

1× CUAV PMU 2 Lite — 15 V Version

1× CAN Expansion Board

2× CAN Cables — 35 cm

1× USB Type-C Cable — 100 cm

2× TELEM Cables — 30 cm

1× RSSI Cable — 25 cm

1× RC IN Cable — 30 cm

1× PMU 2 Lite Power Cable — 30 cm

1× GPS Connection Cable — 30 cm

1× UART4 Cable — 30 cm

1× Ethernet Cable — 40 cm

1× ADC 3.3 V Cable — 25 cm

1× ADC 6.6 V Cable — 25 cm

1× TF / MicroSD Memory Card

4× Flat-Head Hex Socket Screws

4× Socket Head Cap Screws

4× Silicone Mounting Supports

GNSS modules, RTK equipment, and additional accessories are included only when explicitly selected in the corresponding bundle.

Flight controller firmware must be installed and configured before operation.

The X25 EVO requires a regulated 10–18 V power supply. Do not connect the aircraft battery directly to the controller unless an appropriate power regulation system is used.

The 220 A specification refers to the PMU 2 Lite current measurement range, not the continuous current rating of the flight controller.

The 110 g weight refers to the X25 EVO flight controller and excludes the external power module and accessories.