Wednesday, December 13, 2017
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AlexMos board v3

The Desire RC UK manufactured Bluetooth enabled Alexmos V3 32 bit arm processor boards are now available!

What does the new V3 board offer?

The new board is very feature rich:

  • It has third axis built in.
  • It's based on an ARM 32 bit processor With Security key locking
  • It will be called SBGCv3.0
  • 2nd IMU option (for use on the frame) to aid accuracy
  • Buzzer support
  • S-Bus support
  • Spekrum Satellite support
  • Integrated Blue tooth
  • Battery voltage monitor for power correction
  • On board power supply for up to 6S
  • 1 extra RC input + 3 input/output AUX1..AUX3 for extra functions
  • More amperage on 5V power line (up to 1A)
  • License-based firmware upgrades guarantee only authorised manufacturers on the market



  • Size of the board: 50×50 mm
  • Distance between the mounting holes: 45 mm
  • Diameter of the mounting holes: 3 mm
  • Power supply voltage: 8–25 V
  • Maximum motor current: 1.5 A
  • 5V output current to power external devices: up to 1 A


What do you get from Desire RC?

  • UK manufactured Alex Mos V3 (32 bit arm processor with all three axis on one controller board with the latest firmware
  • Bluetooth connectivity!! - no need to physically connect to the board which reduces stress on the board and offers easy configuration via the Graphical User Interface (GUI). Each bluetooth unit is uniqely coded.
  • 1 x IMU 3 axis board
  • Special l IMU silicone connection cable
  • Dedicated power lead
  • 3 x motor connection plugs with silicone wires

PLEASE NOTE: A second IMU can be used with the Control board - it is wired is series and is a special IMU unit called the v3IMU2. We expect to have these in stock by the end of March 2014. The standard IMU's will not function as "second" units on the V3 board!

The package

Front and Rear layout of the board showing the Bluetooth module

Our manufacturing process in the United Kingdom

What else do you need?

  • A suitable gimbal for your camera
  • Suitable brushless motors for the gimbal
  • A bluetooth enabled computer or a suitable bluetooth dongle (here is the one we use: Bluetooth Dongle)
  • The latest GUI to allow programming of the board (click here)

To make it work, there are several things to do (refer to instructions for help with the board set up):

  • Build the gimbal
  • Mount the Alex Mos controller
  • Mount the IMU (2 can be fitted if required)
  • Mount you camera and MAKE SURE YOU BALANCE THE GIMBAL to ensure that the camera remains level on both the roll and tilt axis. This is important as a poor centre of gravity will result in poor performance!
  • We recommend using a separate 3s to max 6s lipo to power the board as this is the optimal voltage and reduces possible electrical interference from other devices
  • Load the GUI on your computer - communication is via Bluetooth - no physical connection required click here and for windows 8 click here


The board and the IMU are mounted on the gimbal and then the board and IMU are set up using the GUI (Graphical User Interface). Basically each gimbal can be "tuned" to allow the set up you need. Each motor has its own set of "PID's" which control the way in which the motors will work. There is a tutorial on this - see the bottom of this page.

Once the GUI set up has been completed and the PID's are set, then you should be ready to go. Just as a word of caution, anything that has a power supply, please ensure that you have carefully read the connection parameters and our recommendations as incorrect operation is very likely to damage your board which will invalidate any warranty.

Click instructions to help you get things right!

If you need more help then contact us

Send us your video's - we will pick the best ones and post them on our web site for all to see!


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