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detecting 115v

 
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alfonsol
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detecting 115v
PostPosted: Sun Nov 18, 2007 5:44 pm     Reply with quote
i need to know when a 115v line has power or not. ¿ is there a way to make that with a pic?

in advance, thanks
ak6dn



Joined: 08 Jan 2006
Posts: 23
Location: Saratoga, CA USA

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Re: detecting 115v
PostPosted: Sun Nov 18, 2007 6:08 pm     Reply with quote
alfonsol wrote:
i need to know when a 115v line has power or not. ¿ is there a way to make that with a pic?

in advance, thanks


Try http://en.wikipedia.org/wiki/Opto-isolator for starters
SherpaDoug



Joined: 07 Sep 2003
Posts: 1640
Location: Cape Cod Mass USA

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PostPosted: Mon Nov 19, 2007 8:49 am     Reply with quote
Look at Microchip application note AN521 for the simplest cheapest way.
http://ww1.microchip.com/downloads/en/AppNotes/00521c.pdf

Beware you don't burn your fingers from the 115V on your breadboard!
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