Unlocking ExpressLRS PWM Receivers' Serial Protocol Magic
One autumn day in October 2025, I stumbled upon a neat trick with my ExpressLRS PWM receiver — turns out, it’s not just for simple servo control. This revelation that PWM receivers can also output digital serial protocols like SBUS and CRSF without extra hardware changed the way I think about RC setups. Let me take you on a journey to unlock these capabilities with some practical steps and tips I've gathered along the way. TL;DR: ExpressLRS PWM receivers can output SBUS or CRSF serial protocols natively without extra hardware, offering versatile channel and telemetry options for any RC setup. Discovering Serial Protocols Hidden In PWM Receivers On October 2nd, 2025, I set out to demystify a feature of ExpressLRS PWM receivers that even seasoned RC pilots often overlook: their ability to natively output digital serial protocols like SBUS and CRSF . Traditi...