Small devices like microcontrollers, coupled to a few buttons, knobs, encoders and LEDs, allow for a host of interesting and creative musical applications. Solder a few bits together, program a few lines, and you can build a deep device to support your musical exploration. This lecture will show you quickly how the hardware and code works, and then focus on a few interesting applications: controllers, sequencers, sound generators. The workshop will allow you to build your own crazy ideas.