Well, [Ivo] developed a sniffing platform based on an Arduino Uno, a single nRF24L01+ module and a computer running the popular network protocol analyzer Wireshark (part1, part2, part3 of his ...

It’s based around the ubiquitous Arduino Uno, paired with a motor control and ... it uses an off-the-shelf ultrasonic transceiver module, and an NRF24L01 module for remote control.