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

Site: http://www.auav.co/product-p/auavx21.htm

Processors:
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!


Connections:

2.54mm headers:
GPS (USART4)
i2c
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)
USART8 (OSD)


JST GH connectors:
CAN
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

Views: 7036

Comment by kiki boy on August 30, 2017 at 9:04am

Quick comparison but I don't see a ton of differences. AUAV X2.1 is px4 stack ?

Sorry want to lear more about it

Comment by Marc Dornan on August 30, 2017 at 9:42am

The X2.1 has a lot more I/O options. It is pin compatible with a Pixhawk 1. For example Pixracer has only 6PWM outputs. It is for more 'serious' DIY applications.

Maybe Jordi can start a brand new thread with a better breakdown and comparison.

Comment by kiki boy on August 30, 2017 at 10:02am

Ok thank you Mark. Yes should be good, especially for difference between platform ...

Comment by Cala on August 31, 2017 at 6:53am

COOllll, keep Us update with test and experiences; in wishlist for next build ;) looks nice choice for little space builds.


Developer
Comment by Jordi Muñoz on August 31, 2017 at 9:47am

@Marc thanks for the help! 

IMPORTANT: The pin out above has changed slightly. On X2.1 Rev 2 we remove Telem2 JST-GH connector on the side and replaced it with the GPS port, so is more convenient. So the serial ports have been rearranged. We will release a visual datasheet shortly. 

Comment by Johnatan on September 1, 2017 at 3:30am

Are the servo pins powered on this board, so we can attach the servo leads directly to the X2.1 or like Pixracer we have to use a UBEC to power the servos?


Developer
Comment by Jordi Muñoz on September 5, 2017 at 11:16am

Johnatan, 

As PixHawk1, PixRacer and other autopilots they don't provide power on the servo rails. Is not recommended due to variations in power requirements among all platforms. UBEC or power coming from the ESC is recommended to power your servos or actuators. 

Dario Salas, I will get back to you on that one. 


Developer
Comment by Jordi Muñoz on September 5, 2017 at 11:18am

Dario Salas, 

We are using the same as PixHawk1 (micro F100): 

https://github.com/PX4/Firmware/blob/master/src/drivers/px4io/px4io...

Comment by Dario Salas on September 5, 2017 at 11:19am

Thank you Jordi! 

Comment by Luc Maximilien on September 19, 2017 at 9:37pm

Hello Jordi,

can you explain where the I2C connector is located actually ?

So finally to use the board the user must buy also the Basic Cable set or it will not be able to connect the board via Usb since no Usb connector on the board.

The cable MRC0253 is not available alone in Mrobotics shop.

When it will be restocked ?

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