Turn a Raspberry Pi into a radio station
Project Type: Raspberry Pi
Software: Terminal, Text Edit
OS: OSX 10.10.2
Project Source: http://makezine.com/projects/make-38-cameras-and-av/raspberry-pirate-radio/
This fun little project turns a Raspberry Pi into a miniature radio station.
There is no coding needed for this project. The Make tutorial has made everything you need available for download on the website.
You need to know a little about about terminal. You'll also need to do a little soldering but its just for making an antenna.
I had no idea the Pi had the ability to broadcast a radio signal but turns out GPIO 4 was designed for that purpose. I've also never used terminal to flash an SD card before.
The radio station plays all sorts of audio file formats including stuff I bought from the iTunes Store.
Once I was done with the build, I put the Phineas and Ferb soundtrack on the SD card for my kid.
She rode her bike up and down the street with a hand held radio while listening to her music.
The tutorial mentions turning Pin 4 into an antenna. This can be confusing if you don't know they are talking about GPIO 4 ,also known as Pin 7, which is the forth pin down on the inner rail. Don't get confused with the real Pin 4 (the second pin down on the outer rail). That pin is a 5v pin.
I also had trouble finding a empty frequency to broadcast on. I recommend using http://radio-locator.com/cgi-bin/vacant to find an vacant frequency.
The Video below give more detail about the project