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

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

Answer: ExpressLRS is designed primarily to work with digital protocols like CRSF (Crossfire) or its native ELRS protocol, which use serial communication rather than simple PWM signals. Cheap PWM receivers typically output standard PWM signals for each channel, which ExpressLRS transmitters cannot directly interpret or bind to. To use ExpressLRS on your wing, you need a compatible ELRS receiver that supports serial communication. Here’s what to do:
1. Purchase a dedicated ExpressLRS receiver compatible with your transmitter module.
2. Bind the receiver to your ExpressLRS transmitter module following the official binding process.
3. Connect the receiver’s output to your flight controller or directly to servos, depending on your setup.
4. Ensure your flight controller supports ELRS or CRSF input for full telemetry and control.
Using a cheap PWM-only receiver with ExpressLRS isn’t feasible because the protocols and hardware are different. For reliable control and full feature support, invest in a proper ELRS receiver.