RC radio control protocols explained: PWM, PPM, PCM, SBUS, IBUS DSMX, DSM2 - Guides - DroneTrest
Radiolink T8fb 8CH RC Transmitter and Receiver R8ef 2.4GHz Radio Controller Sbus/Ppm/PWM for Drone/Fixed Wing and More (Mode 2) - China Drone Transmitter, RC Transmitter | Made-in-China.com