Arduino Transmitter for ELRS
An Arduino-based DIY RC transmitter designed for ExpressLRS external TX modules, featuring simple hardware and open-source firmware.
What is Arduino Transmitter for ELRS?
Simple TX is an open-source, Arduino-based RC transmitter designed to work with ExpressLRS external TX modules. It provides a DIY solution for radio control of drones and other models, featuring customizable hardware, firmware, and 3D-printed enclosures. The project solves the need for an affordable, hackable transmitter that leverages the popular ELRS protocol for long-range, low-latency communication.
RC hobbyists, drone enthusiasts, and makers who want to build or customize their own radio transmitter using accessible Arduino components and open-source designs. It's ideal for those familiar with basic electronics, 3D printing, and Arduino programming.
Developers choose Simple TX for its simplicity, full open-source hardware and firmware, and direct compatibility with the widely-used ExpressLRS ecosystem. Unlike commercial transmitters, it offers complete customization, from PCB layout to shell design, at a lower cost and with community-driven updates.
Overview
Arduino based RC transmitter for ELRS external TX Module
Use Cases
Best For
- Building a custom RC transmitter from scratch with Arduino
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