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Originally Posted by Max Lobovsky
My original design was to use an 8 bit counter and shift register for each axis but I decided that the increased complexity in circuit and software was not worth saving a few pins. (Save the pins for what, anyway?) I did look for a counter with shift register combined, and the only one I (think I) found is http://www.digikey.com/scripts/DkSea...sus.dll?Filter The reason I say think is because the datasheet is very unclear (no truth tables or anything). Additonally, it is only 4 bit, so I would either have to poll it outside the main loop using a timer interrupt or cascade it. Again, the complexity was prohibitive.
I will soon post pictures of my counters and sensors (which I think should void any of this discussion because of their simplicty.) Everything has been tested except for the robustness of the sensors on a running robot. |
Just to clarify, max is reffering to omni wheels with encoders on them, not optical mice. The interfacing is the same though.
With people from the high northeast, mid east, mid west and far west all in one hotel room, we had the time of our lives simply by sitting there.
- Keith Chester [more] 
03-01-2005, 00:15
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