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: 70268

Comment by renaud barbier on August 30, 2013 at 2:51am


ordering not possible outside US? I tried to order on 3d robotics but it always says unable to ship to my address while this is the exact same I used for all my previous orders... (I am in united arab emirates)

Comment by Adam Erickson on August 30, 2013 at 3:06am

@Lorenz: Thank you for the thorough reply. You and your group at ETH have done some wonderful work, along with your colleague Rafaello D'Andrea, who put on an amazing show at TED this summer. Thanks for pointing me toward the Odroid boards, which I only looked at in passing before. I have been playing with a little embedded computer vision with the SoCs I mentioned, as kind of a side applied science research project. Both will do the job (one better than the other). I really like the BeagleBone for its power management, in addition to processing power. It has a much smaller community than RasPi though! I think some really cool autopilot capabilities are just around the corner, particularly with SoCs and centimetre accuracy GPS. I can't wait to play with the new Pixhawk for starters.

Comment by Bill Bonney on August 30, 2013 at 3:24am
If you cannot place an order email help@3drobotics.com. Its the quickest way to get help on these purchasing issues.
Comment by Joe on August 30, 2013 at 3:27am

Thanks Bill, did that already, this is a recurring issue reported over and over and over, akin to suicide for any business.

Comment by Bruce Jones on August 30, 2013 at 3:35am

Will this board be less susceptible to outside RF, electrical, and magnetic noise?  IMHO, APM hardware is horrible at noise blocking and protection of all kinds.  The new GPS/compass to mount far away from the FC and the whole compassmot procedure seem to be proof of underlying shielding and filtering problems.

Comment by Anton on August 30, 2013 at 3:39am

as for me, I would buy complete solution like NAZA, where everything is included, no need to think about how to get vibro isolation, how to get power, and other things, just simple plug and play.

Comment by Joe on August 30, 2013 at 3:52am

@Anton, OK, so what are you reading this for then.

Comment by robert bouwens on August 30, 2013 at 3:58am

sensors - i am quite happy with the st mems devices:


i made a few test with the mpu6000 and must admit the st variant flies somewhat better.

to reduce possible noise i read the mems devices at a 1khz rate and feed the ekf at one third of this.

to me the result is exelent!

Comment by Wojciech Batog on August 30, 2013 at 4:03am

Is there a way to easily connect it to an 5V Analog sensor? like a airspeed sensor mpxv 5004dp ?

Comment by Lorenz Meier on August 30, 2013 at 4:05am

Wojciech, you will want to use the digital airspeed sensor that will be available with it, as it offers a much better offset, temperature stability, noise rejection and resolution. If your question just is about the general ADC capabilities: You have two 3.3V ADC inputs and one 6.6V ADC input (so yes, you can connect a 5V sensor to the port on the bottom of the picture).


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