Open source software for autonomous unmanned systems


This page contains documentation for the SDU UAS TX, a DSMX based C2 transmitter developed by the SDU UAS Center. The transmitter has been designed for educational and prototyping activities.

Key features are:

  • Based on the Arduino Nano.
  • Compatible with the OrangeRX DSMX Transmitter module V1.21) (and similar TX modules).
  • Supports the open source CRRCSim2) simulator via an audio jack connected to the computer microphone input.
  • Other outputs from the Arduino: Piezo buzzer, red LED, green LED.
  • Inputs: 2 joysticks, 2 two-pos switches, 2 three-pos switches, potentiometer, battery voltage.
  • Optional serial input allowing transmission controlled by computer software.

Hardware documentation

Schematics, PCB layout and Bill of materials are available in this document:


Firmware for the SDU UAS TX is available at: