Program Code

The box is based on an Arduino microcomputer. The code needed can be downloaded below


Download as 4 zip files:

Libraries: Add to your Sketchbook/libraries folder.

Within the Arduino IDE, select menu Sketch/Include Library and “Add .ZIP library”


  • Open racebox.ino
  • Compile the sketch
  • Verfiy then upload to your Arduino Uno in the standard way.

Note: The Relay Shield used requires active HIGH on control pins 4-7 to operate the 4 relays. If your relays require active LOW and/or use different control  pins, then alter the hardware and code to suit.

See the DOCUMENTATION page for full details of the box, features, and how to build your own.