Mario gave Samuel a few raw Optelec braille cells. These used to be covered by patent 4,758,165, but it is now expired.

The patent mostly covers the mechanical part with the piezo bars, it doesn't describe the electronic part. Fortunately, the electronic part is extremely simple:

There are 7 external pins, one alone at the top, and 6 grouped together below, which are here numbered from 0 to 6 starting from the top:

It should thus be fairly straightforward to at least make a couple of test with those.

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None: OptelecBrailleCell (last edited 2010-07-27 22:50:36 by SamuelThibault)