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 offer low latency and high refresh rates. While you can physically connect a cheap PWM receiver to your ExpressLRS transmitter, it won’t actually run ExpressLRS on that receiver because PWM is an analogue signal method, not compatible with ExpressLRS firmware.

If your wing has a PWM receiver, you’ll be limited to standard PWM signal performance, which is slower and less precise compared to ExpressLRS’s native digital link. For best results, use an ExpressLRS-compatible receiver that supports CRSF or similar digital protocols.

To upgrade your wing, follow these steps: 1) Remove the existing PWM receiver. 2) Install an ExpressLRS receiver compatible with your transmitter module. 3) Bind the receiver to your transmitter. 4) Configure your flight controller to accept the digital input from the ExpressLRS receiver.

This setup will give you improved range, latency, and reliability suitable for wings and other RC aircraft.