Almost exactly one year after the first PX4 announcement, we would like to introduce our newest member of the family, Pixhawk! For those familiar with the existing PX4 electronics, it is the all-in-one board combining PX4FMU + PX4IO, combined with a processor and sensor update and a number of new features. The current board revisions will however remain in full service and active development and are fully compatible. Pixhawk is designed for improved ease of use and reliability while offering unprecedented safety features compared to existing solutions.

Pixhawk is designed by the PX4 open hardware project and manufactured by 3D Robotics. It features the latest processor and sensor technology from ST Microelectronics which delivers incredible performance and reliability at low price points.

The flexible PX4 middleware running on the NuttX Real-Time Operating System brings multithreading and the convenience of a Unix / Linux like programming environment to the open source autopilot domain, while the custom PX4 driver layer ensures tight timing. These facilities and additional headroom on RAM and flash will allow Pixhawk the addition of completely new functionalities like programmatic scripting of autopilot operations.

The PX4 project offers its own complete flight control stack, and projects such as APM:Copter and APM:Plane have ported their software to run as flight control applications. This allows existing APM users to seamlessly transition to the new Pixhawk hardware and lowers the barriers to entry for new users to participate in the exciting world of autonomous vehicles.

The flagship Pixhawk module will be accompanied by new peripheral options, including a digital airspeed sensor, support for an external multi-color LED indicator and an external magnetometer. All peripherals are automatically detected and configured.


  • 32 bit ARM Cortex M4 Processor running NuttX RTOS

  • 14 PWM / Servo outputs (8 with failsafe and manual override, 6 auxiliary,

    high-power compatible)

  • Abundant connectivity options for additional peripherals (UART, I2C, CAN)

  • Integrated backup system for in-flight recovery and manual override with

    dedicated processor and stand-alone power supply

  • Backup system integrates mixing, providing consistent autopilot and manual

    override mixing modes

  • Redundant power supply inputs and automatic failover

  • External safety switch

  • Multicolor LED main visual indicator

  • High-power, multi-tone piezo audio indicator

  • microSD card for long-time high-rate logging

  • 32bit STM32F427 Cortex M4 core with FPU

  • 168 MHz

  • 256 KB RAM

  • 2 MB Flash

  • 32 bit STM32F103 failsafe co-processor

  • ST Micro L3GD20H 16 bit gyroscope

  • ST Micro LSM303D 14 bit accelerometer / magnetometer

  • MEAS MS5611 barometer

  • 5x UART (serial ports), one high-power capable, 2x with HW flow control

  • 2xCAN

  • Spektrum DSM / DSM2 / DSM-X® Satellite compatible input

  • Futaba S.BUS® compatible input and output

  • PPM sum signal

  • RSSI (PWM or voltage) input

  • I2C®

  • SPI

  • 3.3 and 6.6V ADC inputs

  • External microUSB port

Power System and Protection

  • Ideal diode controller with automatic failover

  • Servo rail high-power (up to 10V) and high-current ready (10A +)

  • All peripheral outputs over-current protected, all inputs ESD protected

  • Monitoring of system and servo rails, over current status monitoring of peripherals


  • Weight: 38g (1.31oz)

  • Width: 50mm (1.96")

  • Thickness: 15.5mm (.613")

  • Length: 81.5mm (3.21") 


This announcement is a service to our users and developers to allow them to plan their hardware roadmaps in time, and to show what we're currently working on. The board will not be immediately available, but 3D Robotics is taking pre-orders for Pixhawk now, and will begin shipping in late October [Update 11/11: the current expected ship date is late Nov]. The price is $199.99.

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  • T3

    Hi 3DR, just wanted to preorder one. But:


    to Germany for 38g? Sure?

  • Am I correct in saying that this unit has no normal RC PWM inputs?

    Yes.  Down with PPM!  

  • 3D Robotics

    Greg: Yes, it will support all 3DR boards, old and new. 

  • 3D Robotics

    Yes, Chris R is correct. A PWM-to-PPM cable will be available as an option for people without PPM receivers. It's a good solution and not much bigger than the regular cables you'd be using to connect a PWM receiver anyway. 

  • Nice! I really like the tempo of progress at 3DR!

    Will there be also a possibility to connect an APM to this new GCS or it's dedicated to Pixhawk?

    I hope FightingWalrus the best, they are doing a very cool project.

  • @Dwgsparky

    Yes. Chris Anderson answered my question about this earlier. They will be offering a PPM encoder cable at some point to interface between a PWM receiver and the Pixhawk.

  • Moderator

    Am I correct in saying that this unit has no normal RC PWM inputs?

  • 3D Robotics

    Greg: it will look a lot like the Mission Planner, but the guts are closer to QGroundControl in multi-UAV architecture and code. The iPad and other iOS apps are complicated by Apple's restrictions on what devices can plug into Apple hardware. The FightingWalrus guys should have a solution to that soon. 

  • Chris Anderson wrote:

    "One additional note: Pixhawk will be supported by a brand-new cross-platform (Mac, Windows, Linux) GCS/Setup application, which will be announced in a few weeks."

    This is great news for all Mac users.Will it be a new app or updated Mission Planner?

    Does it mean we can also expect iPad app? I almost bought an Android tablet only for Droid Planner. 

    And about the df-13 plugs, i think it would be a fair and simple solution to support a Pixhawk cable set in a low price. I would feel much better knowing i have a spare cable, or two.

    Anyway, can't wait for GCS for mac!

  • R_Lefebvre, Thanks for the clarification regarding the mounting holes, I agree the case would be better with mounting tabs, those that don't need the tabs can simply cut them off.

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