A single button on the Arduino helps cycle through a range of preset frequencies stored in memory. The Arduino connects to the FM radio module over I2C.

The circuitry used is simple: [Kevin] simply wired up two Arduino Unos with nRF24L01 radio modules, which communicate over SPI.

I’ve decided to build a single PCB board that embeds the brain (arduino) and the radio module (nRF24L01+) and is low power capable.

The NRF24L01+ Arduino wireless transceiver shield is ideal for a wide range of applications. For instance, it can be used in home automation projects to control lights, fans, and other appliances ...

KeySweeper - covert Microsoft wireless keyboard sniffer using Arduino and nRF24L01+ About video ads ...

Ever wanted to build an FM radio? Armed with an Arduino and a RDA5807M FM radio module, T. K. Hareendran shows us how to get started.