Niftymitter is an open source short range FM transmitter based on the open source hardware design by Tetsuo Kogawa.
Version 0.22 is designed to be housed within a 1mm cardboard or PP body, with a variety of options for hacking. The transmitter is tiny and handy for small scale radio broadcasts, building a distributed PA system for performances, linking your personal audio player to your car radio, or for general audio experimentation.
The file contains parts for three Niftymitter v0.22 s.
The project's home is at www.openthing.org/products/niftymitter