Can I 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 is designed to work best with receivers that support digital protocols like CRSF (Crossfire) or ExpressLRS native SPI/UART. Using a cheap PWM receiver is technically possible but not recommended because PWM receivers output one pulse per channel, which limits your control resolution and increases latency compared to digital receivers. If you still want to try, connect the PWM receiver's signal wires to your flight controller's PWM input pins and configure your flight controller to read PWM inputs. However, you will lose many benefits of ExpressLRS such as ultra-low latency and telemetry. For a wing, where smooth and precise control is crucial, investing in a small ExpressLRS-compatible receiver (often available for under £10) is a better choice. These receivers are compact, lightweight, and provide reliable, low-latency control that suits the high-speed demands of wings. In summary, avoid cheap PWM receivers if you want the full ExpressLRS experience; go for an ExpressLRS-native receiver instead.