Holybro Pixhawk 4 FMUv5 Flight Controller, Plastic Case & Cable Set
Holybro Pixhawk 4 FMUv5 Flight Controller Holybro Pixhawk 4 is an FMUv5 autopilot platform for multirotors, fixed-wing aircraft, VTOL systems, rovers, boats, and autonomous-vehicle research. Its STM32F765 main processor, dedicated I/O processor, dual inertial sensor paths, vibration isolation, flexible peripheral buses, and redundant power inputs provide a capable foundation for PX4 or ArduPilot projects. Configuration supplied on this page: Pixhawk 4 with plastic case and Holybro cable set (OpenELAB SKU: Pixhawk-PX4-Plastic; corresponding Holybro controller SKU: 11032). A power module, GPS, telemetry radio, RC system, airframe, battery, and propulsion hardware are not included. Why Choose Pixhawk 4? FMUv5 processing headroom: the 216 MHz Arm Cortex-M7 processor provides 2 MB flash and 512 KB RAM for navigation, control, logging, and custom development workloads. Redundant motion sensing: two accelerometer/gyroscope paths help the flight stack monitor inertial data across separate sensors. Cleaner sensor data: onboard vibration isolation and hardware-timed sensor data-ready signals support accurate sampling and timestamping. Broad actuator support: up to 16 PWM outputs are available through eight I/O outputs and eight FMU outputs. Expandable connectivity: multiple serial, I2C, SPI, CAN, RC, analog, and capture interfaces support navigation modules, telemetry links, payloads, and development hardware. Redundant power architecture: POWER1, POWER2, and USB can provide independent controller power paths for appropriately designed systems. Model and Package Scope Controller Holybro Pixhawk 4, plastic case Holybro controller SKU 11032 OpenELAB SKU Pixhawk-PX4-Plastic Power module Not included GPS / compass Not included Telemetry radio Not included RC transmitter / receiver Not included Core Hardware Hardware architecture Pixhawk FMUv5 Main processor STM32F765, 32-bit Arm Cortex-M7, 216 MHz Main memory 2 MB flash, 512 KB RAM Current I/O processor STM32F103, 32-bit Arm Cortex-M3, 72 MHz, 64 KB SRAM Accelerometer / gyroscope ICM-20689 plus BMI055 or ICM-20602, depending on production revision Magnetometer IST8310 Barometer MS5611 Operating temperature -25 to 85 degrees C Dimensions 44 x 84 x 12 mm Controller weight 33.3 g with plastic case Interfaces and Expansion Up to 16 PWM outputs: 8 I/O PWM and 8 FMU PWM 3 dedicated FMU PWM / capture inputs 5 general-purpose serial ports 4 I2C buses in the Holybro hardware design, including dedicated external buses and buses shared with GPS/serial functions 4 SPI buses, including 2 external SPI buses with multiple chip-select lines Up to 2 CAN buses Dual battery voltage and current monitor inputs when used with compatible power modules Dedicated CPPM input and Spektrum/DSM or S.Bus RC input with analog/PWM RSSI support Dedicated S.Bus servo output USB, microSD, safety-switch, buzzer, FMU debug, and I/O debug connectivity Power Planning POWER1 / POWER2 input: use a compatible regulated power module that supplies the controller within its required voltage range. Power-module output range: 4.9-5.5 V. USB input: 4.75-5.25 V. Servo rail: 0-36 V input range; the actuator rail is electrically separate from controller power. Redundancy: POWER1, POWER2, and USB can form three controller power sources when the system is wired correctly. Important: the FMU PWM and I/O PWM power rails do not power the flight controller, and the controller does not power those actuator rails. Design the controller supply and servo/ESC supply separately, verify every connector pinout, and never connect a battery directly to a signal or receiver port. Firmware and Vehicle Compatibility PX4: Pixhawk 4 is an officially documented FMUv5 controller and is supported by the PX4 maintenance and test workflow. ArduPilot: current FMUv5 firmware builds are available for supported ArduPilot vehicle types. Select the correct vehicle firmware and confirm current feature support before installation. Vehicle types: suitable for compatible multicopters, fixed-wing aircraft, VTOL platforms, rovers, boats, and research vehicles that use supported PWM, S.Bus, CAN, or other documented interfaces. Available outputs do not guarantee compatibility with every airframe or peripheral. Confirm the required number and type of actuator outputs, receiver protocol, power architecture, connector pinout, and firmware target before ordering. What's Included 1 x Holybro Pixhawk 4 flight controller in plastic case 3 x 6-pin to 6-pin 26 AWG power cables, 150 mm 2 x 4-pin to 4-pin 26 AWG CAN cables, 150 mm 2 x 10-pin to 10-pin 26 AWG PWM cables, 150 mm 1 x 8-pin to 8-pin 26 AWG AUX cable, 150 mm 1 x 7-pin to 7-pin 26 AWG SPI cable, 150 mm 1 x PPM / S.Bus output cable, 150 mm 1 x XSR receiver cable, 150 mm 1 x DSMX receiver cable, 150 mm 1 x S.Bus receiver cable, 150 mm Package contents are based on Holybro's current Pixhawk 4 controller and cable-set listings. Production packaging may be updated by the manufacturer without notice. Documentation and Setup Resources Holybro Pixhawk 4 Quick Start Guide Holybro Pixhawk 4 Datasheet Holybro Pixhawk 4 Pinout Reference PX4 Pixhawk 4 Hardware Guide PX4 Pixhawk 4 Wiring Quick Start Installation and Safety Notes Mount the controller securely with its orientation arrow aligned to the vehicle, or configure board rotation correctly in firmware. Keep the controller isolated from excessive vibration, heat, high-current wiring, magnets, and radio transmitters. Check the official pinout before connecting any third-party cable; matching connector shapes do not guarantee matching wiring. Connect a compatible power module to POWER1 or POWER2 and provide a separate actuator supply where required. Install the correct PX4 or ArduPilot firmware, then calibrate sensors, radio, battery monitoring, and flight modes. Perform motor-order, direction, failsafe, and control-surface tests with propellers removed. Use a microSD card for flight logs and post-flight analysis where supported by the selected firmware. FAQ Which Pixhawk 4 version is sold on this page? This is the plastic-case controller configuration corresponding to Holybro SKU 11032, supplied with the Pixhawk 4 cable set. Does it include a PM02 or PM07 power module? No. This is the controller-only package with cables. Select a compatible power module separately for the vehicle's battery voltage, current requirement, connector type, and power-distribution design. Are GPS and telemetry modules included? No. GPS, compass, telemetry radio, RC transmitter, and RC receiver are not included. Does Pixhawk 4 support both PX4 and ArduPilot? Yes. PX4 officially documents Pixhawk 4 as an FMUv5 controller, and ArduPilot publishes FMUv5 firmware builds. Always use the correct current firmware for the selected vehicle type. How many PWM outputs are available? Up to 16 outputs are available: eight from the I/O processor and eight from the FMU. Actual output use depends on the selected firmware, airframe, and output mapping. Can the servo rail power the flight controller? No. The PWM actuator rails and flight-controller power inputs are separate. Power the controller through POWER1, POWER2, or USB as documented. Can USB be used as a backup power source? Yes, USB is one of the documented controller power paths. A flight-ready installation should still use a properly designed primary and, where appropriate, backup power system. What vehicles can use Pixhawk 4? It can be used with supported multirotors, airplanes, VTOL aircraft, rovers, boats, and research platforms when the airframe, actuator count, interfaces, and firmware are compatible. Is a microSD card required? A microSD card is strongly recommended for flight logging, analysis, and functions that depend on onboard storage. Confirm whether one is present before commissioning the system. What should I verify before ordering? Confirm the required firmware, number and type of outputs, receiver protocol, power module, GPS, telemetry link, cable pinouts, actuator-rail voltage, airframe compatibility, and local radio or aircraft requirements.