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Wheel encoders and maze simulator



Happy Christmas everyone !

I believe "Mike Hulme" had done a maze algorithm
simulator but his hotmail account has since expired..
anyone in touch with him ?

Again, I want to use quadrature encoder to at least
double the
resolution of my 32 segment reflective type encoder
disc.

Can you suggest a good layout of using 5mm IR LED and
IR Photodiode to make a good quadrature encoder -
possibly using 3 diodes (one emitter, two detectors)
instead of 2 (two emitters, two detectors) ?

Cheers !

Vimal


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