Using PIC to sample 90 wires
Michael Watterson email (remove spam text)
Andrew Wood wrote:
> Maybe Im just too thick to be working on this because Im totally lost.
> I dont see why I cant use strobing to arrange the 90 wires into 9
> columns of 10 and at each crosspoint put an AND gate transistor.
90 transistors & 19 pins
vs 12 ICs that are cost of two transistors and 3 pins
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