So [Todd] has set out to build an Arduino frequency counter for a Kenwood TS-520S HF ham radio. This post (and the video found after the break) doesn’t cover the entire project.

Most radio circuits are tuned to pretty close tolerances and going from 27 MHz to 50 MHz seemed like quite a leap. The answer? An Arduino and a few other choice pieces of circuitry.

Arduino enthusiasts looking for a new project to keep them busy over the weekend may be interested in a new Arduino FM Radio Project, which uses an ATmega328-based board to communicate with a ...

London has a rich history of underground radio stations, but what if we flipped that, and turned London's Underground into a radio? Well it'd look like this. The circuit-board radio project is a ...