The MATEKSYS CRSF PWM 6 is a Crossfire to PWM Converter with 2 UARTS and 6 PWM Outputs. This converter supports any Crossfire Protocol receivers, such as the 433MHz, 868MHz, 915MHz, or 2.4GHz. VIDEO: JB rants about CRSF to PWM converter for ELRS. Matek delivers! Features Compatible with Crossfire Receivers Only No 5V Regulator Built-in Built-in Current Sensor Failsafe Value AutoSet Firmware Upgradeable 6 PWM Outputs 2 UARTS PINOUTS AND PADS 4v5 pad voltage = 5V pad voltage -0.3V, make sure the voltage on the 5V pad is not higher than receiver and GPS rated voltage. Tx2/Rx2(UART2) for GPS/firmware update/setting parameters Tx1/Rx1(UART1) for CRSF protocol Receiver Vbat: Battery voltage sensing (0~36V) Curr: current sensor signal (0~3.3V) 1~10: CH1~CH10 PWM outputs G: ground FAILSAFE Failsafe value is set automatically after the CRSF-PWM board is powered on and receives the CRSF signal. LED blinks 8 times quickly. Failsafe value = The PWM value of each channel(except CH3) when the CRSF signal is received by the CRSF-PWM board for the first time CH3 is specially arranged for the throttle, Failsafe value = 988 by default. Put the throttle joystick to the lowest point, put AIL(Roll), ELE(Pitch), RUD(Yaw) middle before powering on the receiver. LED STATUS Slow blinks: CRSF-PWM board doesn't receive a CRSF signal, e.g., the receiver is not bound with the transmitter, the receiver is not connected to UART1 of the CRSF-PWM board. 8x quick blinks: CRSF-PWM board received CRSF signal and failsafe value is saved. 2x slow blinks between 8x fast blink and solid on: CLI mode is active