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Author Topic: Capturing pulses  (Read 7063 times)

Garyhlucas

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Capturing pulses
« on: April 24, 2015, 09:29:47 PM »
I want to try capturing pulses from a flow meter using a regular digital input.  I don't believe the rate is terribly high, maybe 100 hertz. Is this doable or will I need a high speed counter module?  The reason for doing this is to keep the cost down on the system I am designing.  I don't need high accuracy, a missed pulse here and there would not be an issue.  How should I code this?
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BobO

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Re: Capturing pulses
« Reply #1 on: April 25, 2015, 12:26:10 AM »
You're on the edge. A Do-more controller can keep up, but your DC input is iffy. For 100hz you need better than 5ms response on the input.
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