Quick Answer
Pixhawk is an open-source autopilot platform that runs ArduPilot or PX4 firmware, giving drones GPS navigation, autonomous flight modes, and sensor integration. It is the standard choice for builders who need more than basic acro flying.
What is Pixhawk?
Pixhawk is not a single product. It is an open-hardware project that defines a set of standards for autopilot boards. Manufacturers like Holybro take those open designs and build physical boards optimised for different use cases, from surveying drones to racing quadcopters.
The boards run either ArduPilot or PX4 firmware on top of the NuttX real-time operating system. QGroundControl handles firmware updates, calibration, and mission planning through a single application.
If you have used a flight controller like Betaflight for acro or racing, Pixhawk serves a different purpose. Betaflight is built for manual, line-of-sight or FPV freestyle flying. Pixhawk is built for autonomy: GPS hold, waypoint missions, return-to-home, and sensor-driven flight.
What Makes Pixhawk Different?
Open source, widely supported. The hardware schematics are released under CC BY-SA 3.0. Both ArduPilot and PX4 treat Pixhawk boards as their reference platform, so firmware support is the strongest available. Bug fixes, new features, and stability improvements land on Pixhawk hardware first.
Sensor redundancy. Higher-end models like the Pixhawk 6X carry triple IMUs and dual barometers. If one sensor fails mid-flight, the controller switches to a backup without skipping a beat. That matters for surveying rigs and commercial operations where landing is not an option.
Peripheral flexibility. Every Pixhawk board offers multiple UART, CAN, I2C, and SPI ports. You can connect GPS modules, airspeed sensors, telemetry radios, companion computers, and ESCs all through standardised connectors. The Pixhawk Bus standard ensures compatibility between controller modules and baseboards.
DroneCAN and CAN peripherals. The CAN bus lets you daisy-chain compatible devices. A DroneCAN power module like the PM08-CAN can feed voltage and current data to the flight controller over CAN, reducing wiring and improving reliability compared to analog sensing.
Companion computer integration. Pixhawk boards with Ethernet ports can connect directly to Raspberry Pi CM4, Nvidia Jetson, or similar single-board computers. This enables onboard image processing, computer vision, and advanced autonomy that would not be possible on the flight controller alone.
Pixhawk vs FPV Flight Controllers
These are not competing products. Pixhawk handles autonomous missions, GPS navigation, and complex sensor integration. FPV controllers like F4, F7, and H7 boards running Betaflight handle acro racing and freestyle at high update rates. Some builders run both: a Pixhawk for autopilot and a separate FC for stabilisation.
The key difference is firmware philosophy. Betaflight prioritises low latency and direct stick response. ArduPilot and PX4 prioritise mission execution and sensor processing. You would not use Betaflight to fly a surveying grid, and you would not use Pixhawk to freestyle a skate park.
Choosing the Right Pixhawk
The current generation includes the Pixhawk 6X (professional builds, triple redundancy, modular baseboards), the 6C (mid-range, integrated design), and the 6C Mini (compact, fewer ports). For a detailed breakdown, read our Pixhawk 6 vs 6C vs 6X vs Mini comparison.
What to Buy
- Pixhawk 6C Flight Controller — solid mid-range choice with double IMU and CAN support
- PM08-CAN 14S 200A DroneCAN Power Module — high-voltage CAN power monitoring
- Holybro MS4525DO Airspeed Sensor — I2C airspeed for fixed-wing builds
Browse the full range in the Maker collection.
FAQ
Q: Can Pixhawk run Betaflight?
A: No. Pixhawk boards run PX4 or ArduPilot. Betaflight runs on STM32 F4, F7, and H7 boards designed specifically for acro and racing flight.
Q: Do I need programming knowledge to use Pixhawk?
A: Not for basic setup. QGroundControl and Mission Planner provide graphical interfaces for calibration, waypoint planning, and parameter tuning. Advanced customisation does require some technical comfort, but the getting-started guides from both ArduPilot and PX4 are thorough.
Q: Is Pixhawk only for drones?
A: No. Pixhawk is used in rovers, boats, submarines, and stationary antenna trackers. Any autonomous vehicle that needs GPS navigation and sensor integration can run on Pixhawk. The ArduPilot vehicle type list includes multirotors, fixed-wing aircraft, helicopters, ground rovers, and boats.