Elektor Grove I²C FM Radio Receiver
Demonstration of a fun little FM radio that can be controlled over an I²C bus. Shown is how to do this in two versions. One with an ATtiny85 to create a tiny radio, with a mini-jack, a trimmer and two buttons for the radio channel selection. A second version is based on an ATmega328 with a rotary encoder for a more comfortable application and a display showing both the frequency and the volume.