Radio Control Firmware
4.9k 2026-04-30
ExpressLRS/ExpressLRS
ExpressLRS is a high-performance, open-source radio control link designed for RC applications, offering superior range and low latency.
Core Features
Up to 1000 Hz Packet Rate for ultra-fast response
Supports 2.4 GHz, 900 MHz, and Dual-Band RC Link options
Telemetry with Betaflight Lua Compatibility
Wifi Updates for convenient firmware management
Wide range of supported receiver protocols (CRSF, SBUS, MAVLink, etc.)
Detailed Introduction
ExpressLRS is an open-source, high-performance radio control link primarily developed for FPV racing and other RC applications. It utilizes Semtech LoRa hardware (SX127x/SX1280) combined with Espressif or STM32 processors. Through highly optimized over-the-air packet structures and LoRa modulation, it delivers industry-leading range and ultra-low latency. Supporting both 900 MHz and 2.4 GHz frequencies, ExpressLRS offers versatile solutions for a wide array of hardware, continuously advanced by a passionate open-source community.