AVR-Chat

At 10:08 AM 5/21/05 +1000, John Samperi wrote:
>I posted the following on AVRfreaks so some of you may see this twice.
>I need to know exactly where a stepper motor is positioned at any time.
>By Googling I found some potentiometric position sensors, which I guess
>will do by feeding it into an A/D and reading back the voltage.
>
>If there is a digital type of sensor that would give me discreet positions
>from 0-255 that would be perfect, and as some of you are geniuses on
>the subject, you may be able to point me in the right direction without having
>to wade some 1600 pages in Google.Basically the program would check where
>the motor is located, find out where it needs to be and issue the correct
>number of pulses to take it there( backward or forward), then check that
>is in fact there. This will be controlling a valve that needs to open a
>certain amount.

What kind of angular range do you need? 45degs, 90degs, 360degs, 720degs?

Robert

Robert

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