The ERS Sensor PWM Adapter allows compatible ERS sensors to connect to most PWM ExpressLRS receivers, including receivers without a dedicated UART port.

This compact PCB adapter converts the sensor’s female JST-GH UART connector into two connection outputs: a standard servo-style connector and a single-pin Dupont signal wire. These outputs can be assigned to two PWM channels on the receiver.

For receivers without a dedicated plug-and-play UART connection, two PWM outputs can be configured as TX and RX through the receiver’s Web UI in Wi-Fi mode or the ExpressLRS LUA script. This enables full ERS sensor functionality while leaving the remaining PWM channels available for servos, ESCs, and other peripherals.