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Electronics => Electronics => Topic started by: Tesla on May 27, 2009, 07:35:17 PM

Title: PIR Motion Detector Problem
Post by: Tesla on May 27, 2009, 07:35:17 PM

Hi all,

I have a PIR that has an output that floats at .9 volts and sometimes triggers.  How do I get that down to 0 volts?

Thanks you,
Jason

Title: Re: PIR Motion Detector Problem
Post by: SmAsH on May 28, 2009, 12:35:24 AM

use a pull down resistor?
use a 10k resistor from the signal line to gnd and see if that helps...

Title: Re: PIR Motion Detector Problem
Post by: Tesla on May 28, 2009, 11:27:29 AM

Thank you!  I think the problem is with the schmitt trigger IC.  I ordered a new one.  If that doesn't fix the problem, then I'll try the pull down resistor.

Title: Re: PIR Motion Detector Problem
Post by: SmAsH on May 28, 2009, 03:41:50 PM

awesome, good luck with that...
and say hi to dellagd next time you see him...