[PD] Arduino

[Hans-Christoph Steiner]

You'd probably want to use pulseIn() to measure it:

http://www.arduino.cc/en/Reference/PulseIn

It returns values in microseconds, so I think it should have plenty  
of resolution for what you need.

.hc



On Aug 25, 2006, at 1:40 PM, Charles Henry wrote:

> Okay, I think I get it now.  This may be just the thing I'm looking
> for to fix a broken board on a CNC lathe...the lathe is so old that no
> one builds replacement boards...but there's intact sensors and
> velocity control units.
> I still don't understand what the clock rate is like for the digital
> in/out pins.  If you were trying to sense an optical encoder for
> instance, what would be the maximum rate you could detect?
> Chuck
>
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