ServoMotor Control

Archiver

Can anybody help me get started?

I am attempting to contruct my first mobile robot. I have a DC motor,
direct driving one of the wheels. Also on this shaft is an optical encoder
disk with an HP Heds encoder module. What is the easiest way to
connect/control this sytem with the BasicStamp? Is there another chip that I
need, or can the signals from the encoder module go directly into the
BasicStamp?

Thanks,
Jeremy
ME-University of Florida
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Archiver

There is no external input counter on any of the stamps;
you would have to use some binary counters like the
74HC193 and this would have to get it's count from
a encouder to counter interface chip like the LS7083.
With this setup you can poll the counters on ocasion
to get the count (lots of pins). You could run it all into a
shift reg. first, I guess.
The pulse stream from the encoder is far to fast
for the stamp to keep up, even at moderate RPM.
Servo control a bit much for the stamp.

I am working on a project using HP quad encoders and
will see if I can get a AT89 series chip to cut the grade.
This chip has 2 external 16 bit counter inputs (one for up
and one for down) with interupt. I will be programming
in assembler for maximum speed.

Cheers
Kenn