Using 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 primarily for digital protocols like CRSF, which provide low latency and high refresh rates. Cheap PWM receivers output standard PWM signals, which are much slower and less precise compared to ExpressLRS native protocols. While you can physically connect a PWM receiver to your flight controller receiving PWM inputs, you won’t benefit from ExpressLRS’s advanced features such as telemetry and rapid response times.

If you want to use ExpressLRS on your wing, the best approach is to get a compatible ExpressLRS receiver that supports CRSF or similar digital protocols. These receivers are affordable and provide a much better flying experience. To set it up, flash the ExpressLRS firmware to your transmitter module, bind it with the ExpressLRS receiver, and connect the receiver directly to your flight controller via UART using CRSF.

In summary, running ExpressLRS with a cheap PWM receiver isn’t practical. Invest in an ExpressLRS-compatible receiver for optimal performance and reliability.