Here’s another interesting physical computing platform; the PIC-based Create USB Interface. The original design was made by Dan Overholt as a bridge between computer and world for musical and artistic applications. Seeed Studio has an updated design called the CUI32Stem, which has been tweaked to work well with the thirty-something sensors and actuators in their GROVE collection.
The CUI32Stem can run Arduino code using the Chipkit “Multiplatform IDE” developed by Microchip. It also supports a free Real-Time Operating System called StickOS which allows you to program it in BASIC.
The GROVE designs are all open hardware and are very well documented on the wiki with schematics, board files and firmware provided. Nice job!
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Note – Although not shown in the “Grove Dash Kit” photo above, the CUI32Stem comes with headers pre-soldered on (when shipped as a part of this kit). When shipped alone, there are no headers on the CUI32Stem board, allowing slim-profile mounting applications and/or users own choices for which types of headers to use…
By the way, here’s a couple of fun musical projects that would work well on the CUI32Stem (as they use the same PIC32-family of chips):
Mini Polyphonic Sampling Synth:
http://hackaday.com/2011/06/08/chipkit-sketch-mini-polyphonic-sampling-synth/
Music box is still alive with wavetable synthesis:
http://hackaday.com/2012/01/17/music-box-is-still-alive-with-wavetable-synthesis/
-Dan