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 card 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 new version solves many of the problems in v0.21 (See project website for v0.21):v0.21 solved many of the issues of v0.1:KNOWN ISSUES IN v0.22:The project's home is at openthing.org/products/niftymitter