High Performance Open Source Radio Control Link
ExpressLRS is a fully open radio control link built for maximum range, speed, and data throughput. Wide hardware support across both 900 MHz and 2.4 GHz frequencies.
Quick Start Download Configurator Run Web FlasherWhy ExpressLRS
Blazing Fast
Up to 1000Hz packet rate. LoRa, FLRC, and FSK modes let you optimize for speed, range, or throughput for any mission.
Extreme Range
Go as far as you dare. Rock-solid control on both 900MHz and 2.4GHz - you decide when to turn back, not your radio.
Built for Everything
From tiny whoops to long-range wings. Planes, helis, cars, boats - reliable control for any craft, any mission.
Vast Hardware Ecosystem
From 0.46g nano receivers to dual-band TX modules. Over 50 manufacturers and hundreds of devices. Choose the gear that fits your build.
Full Telemetry
Bidirectional MAVLink over a single link. Mission planning, real-time telemetry, and ground station connectivity - everything you need for autonomous and long-range operations.
Open Source
Fully open source and built by a global community of pilots and developers. Anyone can contribute, audit, and improve the code that controls their craft.
You're in Good Company
Over 50 manufacturers. Hundreds of officially supported devices.
...and many more
Join the Community
Thousands of pilots and developers are already here.
Support the Project
Want to get involved? Whether you write code, improve documentation, report bugs, or back the project - every contribution matters.
Latest News
December 15, 2025
ExpressLRS Legal Update: Final Pre-Litigation Demand Issued
Project update October 22, 2025
ExpressLRS Progresses Global Protection Thanks To Community Backing
Project update October 03, 2025
Protect Your Open-Source Project Before It's Too Late: A Legal Horror Story
Project update