[linux-audio-user] nifty gizmo

Cesare Marilungo cesare at poeticstudios.com
Thu Jun 1 15:24:55 EDT 2006

greg wrote:

>Impressive video, runs OSC.  $500 (ow!).  Open source on the drivers and
>firmware but they don't say how to build it.  Anyone seen this in the
>wild? Supposedly they're going to be shipping by two weeks ago.
I've read about it on many blogs in the past few months. I believe that 
the price is high because of the trendy design and the stylish pictures 
they made of the first prototypes.

If you want to try to make your own, the electronic circuit to make such 
thing should be pretty cheap (10-20$). Then you should find and buy 
those backlit buttons, but you can use a simple button with a led above 
it for a less futuristic, more retro style. Anyway, it shouldn't be 
difficult to find this kind of buttons on some online shop.

The firmware: one of the simplest assembly programs you can write. You 
can make it with the PIC 16f84 (5$) and a bunch of demultiplexer ICs.

The protocol is: just send this 64 bits (one for each button).


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