This is an easy-to-build open-source Arduino compatible board that enables driving 8 RC servos over NRF24L01 RF Link. The project can be used as a standalone RC servo driver or 8 channel RF remote-controlled RC servo Receiver. An optional OLED display option can be used to develop RC signal monitor. The tiny module contains an ATmega328 microcontroller, connectors for 8 x Servo interface, DC supply connector, bulk electrolytic capacitor C5 on DC supply to provide jitter-free smooth movement of RC servos. Operating Supply 5V DC.
8 Channel RC Servo Driver Over RF Link using NRF24L01 RF Module – Arduino Compatible – [Link]