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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  • This is getting really ridiculous....we have given 3DR all the time that they have asked for the development and bug busting..I cant imagine how long can they make people wait after they have taken the money and have not shipped the product by keeping them under the impression that the product is being improved...and if a product overhaul takes such a long time after the pre-orders have been placed,then it makes me question the logic behind announcing such a half-cooked product...I am really amazed to see how the founder of this company makes comments and promises which fall flat....just one page back he said that all the pixhawk pre-orders will be cleared by the first week of jan...and here we are after more than 2 months of waiting and letting our paypal protection run out, we are still hoping that the company would be working hard on improving the product..I think we are just telling that to ourselves to make ourselves feel better about how foolish we were to fall for "The Most Advanced and User Friendly FC In The World" crap...I am dissapointed with this conduct from 3DR  

  • Moderator

    Well first impression is that is solid and well packaged. I am amazed at how far things have come in six years this is where lots of us here started and for similar money.


    Limited waypoints, no GCS no telemetry only aircraft shall I go on. Sadly my Pixhawk will have to sit in its posh box a while longer several builds behind and some real world tasks to be done as well.

  • It seems that many people are now receiving hawks.
    How about some comments please guys?
    Good points, bad? . . .
  • Relax guys. I myself paid the unit on te same day as it was announced back in august and received the unit yesterday with nice packaging and instructions.
    The unit looks fantastic
  • switching my notifications to the thread off... this is getting ridiculous
  • That's not entirely true. I pre-ordered a Taranis X9 Radio from Aloft Hobbies and was not charged until the day it arrived in stock and was shipped.

  • Anyone who does any online purchases knows that paying when you order is standard on the Internet nowadays - that's not just something only these guys do!

  • Butch, I live in the USA and was billed the day I placed the pre-order.  I paid with PayPal, so that might be the reason.

  • Mine is payed money not in my account anymore. But not shipped. Not that I'm worried..
    I'm used to waiting for items from abroad.. Just very exited about this. And the waiting is killing me :-)
  • I have not been billed for mine yet. As I understand, I will not be billed until the merchandise is actually shipped. I live in the USA but I am not sure how it works in other countries.

This reply was deleted.