Can I use ExpressLRS with a basic PWM receiver on a wing?

Question: Can I run ExpressLRS with a cheap PWM receiver on a wing?

Answer: ExpressLRS is designed to work primarily with digital protocols like CRSF, which offer low latency and high refresh rates. Using a cheap PWM receiver with ExpressLRS isn’t straightforward because PWM outputs are slower and less precise compared to digital signals. However, if your wing has limited space or budget constraints, you can use a PWM receiver with an ExpressLRS transmitter module, but you’ll lose the advantages of ExpressLRS’s performance. To do this, connect the PWM receiver’s signal, power, and ground to your flight controller, and configure the FC to accept PWM input instead of a digital protocol. Keep in mind that you won’t get telemetry or fast response times, and range might be reduced. For best results, consider upgrading to a compatible ExpressLRS receiver that supports CRSF or similar digital protocols. These receivers are usually compact, affordable, and improve link reliability and control precision, especially important for flying wings where control authority is crucial.