Description:- This PPM encoder board is suitable for APM2.x/Pixhawk/PX4/Paparazzi/MultiwiiC all kinds of flilght control, it can convert receiver signal to one channel PPM signal,- Max support 8 channel input- There are two M3 installation holes on circuit board- PPM signal can be used for connecting analog dog and receiver to have wireless analog practiceParameters:- Max support 8 channel input-