Here is the software and documentation you need to make your own freETarget.

You can either visit the main project page or follow the quick links below.

PC Software
The source files are available on the Github, and you can build your own using the VisualStudio hobby edition

The most recent version can be downloaded here:

Once you download it, unzip the files and follow the instructions.

Warning! Installing version 4.x will overwrite the old (v1.x, v2.x and v3.x) database with a new empty one. All saved sessions will be lost.

User guid for the PC software

Arduino Firmware

Intel hex file containing the latest released firmware. The instructions are

  • Download the firmware (link below)
  • Unzip the file (remember where you left it)
  • Open the PC client program
  • Use the Firmware Upload button to begin the process

See the Application note below for more instructions.

Current Release

4.2.0 Five Target Rapid Fire and Dopper Fading

This version of software has numerous changes for rapid fire across (up to) seven targets. Setting {“TOKEN”:X} X = 0, No token ring. X = 1, Token Ring Master, X=2, Token Ring Slave

To compensate for signal fading over long(ish) distances, {“DOPPER”:X} adds X clock counts per 100mm^2. Values of X range from 0 (no compensation) to typically ~40 for air pistol targets.

IMPORTANT: The PAPER_TIME was changed in this version of software. The new software uses a value 10x the old one. Typically {“PAPER_TIME”:500} should be used.


Version 4.2.6 – Rapid Fire & WiFi

Version 4 has significant changes to it’s operation. Verify your settings after loading.

  • Rapid Fire
  • Tabata Training
  • WiFi Connection to Home Network
  • Improved Diagnostic Log and Trace
  • 4.0.9 Bug fix to setting SSID and Password

Rescue Software

This is a special version of software to upgrade a very old board to a new software version.