Introducing the AUAV X2.1 Flight Controller


The AUAV X2.1 is all about lessons learned. The X2 was a very successful board but there was still room for improvement. Following the PixRacer project we had time to invest into making the X2 the high quality PixHawk replacement we intended it to be. Major changes include: updated IMU sensors, power supply has been redesigned, headers have been laid out more logically, remote USB connector, industry standard 30.5mm mounting points.

Questions and comments are welcome!

Phil and Nick

Available: October 1, 2016

Price: $130


Main: STM32F427VIT6 ARM microcontroller - Revision 3
IO: STM32F100C8T6 ARM microcontroller

Next Generation Sensors:

Invensense MPU9250 9DOF
Invensense ICM-20608 6DOF
MEAS MS5611 barometer

New Power OR-ing schematic with reverse voltage protection. 5V power module is required!


2.54mm headers:
RC input
PPM input
Spektrum input
RSSI input
sBus input
sBus output
Power input
Buzzer output
LED output
8 x Servo outputs
6 x Aux outputs
USART7 (Console)

JST GH connectors:
USART2 with flow control (Telem 1)
USART3 with flow control (Telem 2)
USB (150mm GH to Micro USB cable included for convenient mounting)
JTAG FMU Processor
JTAG IO Processor

Size: 36mm x 50mm

Mounting Points: 30.5mm x 30.5mm 3.2mm diameter

Weight: 10.9g





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  • thx Phil for the update

  • We would love to sell them and the hardware is in our hands. Bootloader is finished. We are just waiting to core dev developers availability to complete the port of this board to PX4 and ArduPilot.
  • +1 with Johnatan. all sold out? or production problems? i'm ready to give you my money.

  • When will it be available? We already passed middle of October and it is still out of stock.

  • Keep Us updated about this board tests, look's interesting :) , and a box before I buy please ;) .

  • What is the main difference with Pixracer? I have a Pixracer and will be buying one more FC board from AUAV soon.

    I see the different connectors, more AUX outputs, second MCU. Anything else.? The sensors seem to be the same, but maybe their connection/layout is different (better)?


  • nice 。
  • Good work on the remote USB connector, this was something I missed on the original X2 vs. standard pixhawk.

  • Rob, Hugues, Nick

    Thank you for the info. I'm interpreting what's been written as, may or may not work out of the box on 1st October. If it doesn't work, it shouldn't be long before it does. Good luck with the porting, hope it goes smoothly.

  • Thank's Nick, pixracer works nice, I wait this one first tests :)

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