Search the forum. There's been a few discussions about them. Mostly revolving around the pins used for the CE & CSN signals. From memory, beyond that it's just a 328p and an nRF24L01 on the same board.
Search the forum. There's been a few discussions about them. Mostly revolving around the pins used for the CE & CSN signals. From memory, beyond that it's just a 328p and an nRF24L01 on the same board.