PX4 and 3D Robotics present Pixhawk: An Advanced, User-Friendly Autopilot

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.

Views: 70778

Comment by Gary Mortimer on August 29, 2013 at 1:55pm

Wow looks slick that's for sure any setup or in flight video?

Ready at the end of October, the letter starts Dear Father Christmas does it not...

Comment by Lorenz Meier on August 29, 2013 at 1:58pm

Gary, we will post much more material in the coming days.

Comment by John Church on August 29, 2013 at 2:07pm

Just when I was thinking that edge connectors are in my future...

Looks nice though. The spec. is very nice.

Comment by Gary McCray on August 29, 2013 at 2:07pm

Really happy to see this, features and IO look really good.

Really happy to see you guys getting this one out there, the rumored FMU-2 I'll bet.

Is this what is in the Iris?

And happy to see the CAN bus made it too. 

Comment by LanMark on August 29, 2013 at 2:16pm

sBUS nice..  excited as my opinion of APM has been not so great especially to my out of box Wookong or Naza boards..  hopefully this will change my opinion... looks awesome.

Comment by Lorenz Meier on August 29, 2013 at 2:33pm

@Gary Yes, this is what will ship with Iris.

Comment by cirilo on August 29, 2013 at 2:43pm

Any ideas of the price yet ?

Comment by Roberto Navoni on August 29, 2013 at 2:50pm

The design is very nice .. but i'm not agree on the sensor ... and connector i'd like other option. 

  • ST Micro L3GD20H 16 bit gyroscope.

  • ST Micro LSM303D 14 bit accelerometer / magnetometer.

I try it on VRBrain 4.0 but I prefer the MPU6000 + HMC5883 .

I think that on sensor need to invest more money for a good result .... 

Why you don't support PPM but only PPMSUM that could be a limit.

The STM32F427 is nice , but is only a 407 with more RAM and FLASH or there are also more advantages ?, i see on datasheet that is pin to pin compatible with 407 so i can upgrade my 407 on VRBrain 4.5 if we need more flash and ram resource that's good.



Comment by Jason Wise on August 29, 2013 at 2:52pm

Wow this is awesome, didnt make the jump from APM 2.5 to the PX4 or VRbrain, gotta love the new toys!, Well done!

Comment by Mike Boland on August 29, 2013 at 2:53pm

Great to see S-bus in there.

So I can start saving to buy a few, any idea on price yet?

Comparable to current APM's ?


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