USB Joystick from a RC Receiver, using a Digispark board and Arduino IDE
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Latest commit 4ac25e1 Jul 24, 2018
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hidRcJoy.ino Digispark Sketch May 30, 2018


A super simple adapter to connect a RC Receiver, to an USB port, using a Digispark board.

The board uses the PPM output of a 2 (or 3) channel RC Receiver, to enable a USB Joystick, that enable the use of a RC Transmitter in RC simulators on the PC


  1. Digispark board (
  2. Arduino IDE 1.8.5
  3. Digistump libraries hack, to enable interrupt on change in IO pins (
  4. 2 Servo extensions (to connect the Digispark board to the RC receiver)
  5. Some soldering
  6. A couple of cold drinks ;)


RC Receiver               Digispark board

Channel 1  -------------- Pin 0
Channel 2  -------------- Pin 1
                     |--- Pin 2 *
                     |--- Pin 3 *
                          Pin 4
Channel 3  -------------- Pin 5                       

*Pins 2 and 3 must be short in order to enable USB device (because of the library hack)

Tested with a Hobbyking 3 channel transmitter and receiver, and VRC simulator. Works great, just like the original VRC adapter. Photos and more info (I will upload a video soon) in