Can You Use a Cheap PWM Receiver with ExpressLRS on a Wing?

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

Answer: ExpressLRS typically uses a dedicated receiver that communicates via CRSF (Crossfire) or SPI protocols for low latency and high reliability. Cheap PWM receivers are generally designed for traditional RC systems and may not directly support ExpressLRS. However, if your ExpressLRS transmitter module supports PWM output, you could technically connect it to a cheap PWM receiver, but this defeats the purpose of ExpressLRS’s advanced features and may introduce latency or signal issues.

For a wing, where weight and reliability are important, it’s best to use a native ExpressLRS receiver. These are lightweight, compact, and provide excellent range and response times. To set this up, flash your ExpressLRS transmitter module and bind it to a compatible ExpressLRS receiver. Connect the receiver’s output to your flight controller via CRSF or UART as per your FC’s instructions.

In summary, while you might physically connect ExpressLRS to a PWM receiver, it’s not recommended. Using a native ExpressLRS receiver ensures optimal performance, range, and reliability for your wing.