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Homevision inputs and ground
- To: <ukha_d@xxxxxxx>
- Subject: Homevision inputs and ground
- From: "Paul S. Gale" <groups@xxxxxxx>
- Date: Tue, 4 Feb 2003 16:03:58 -0000
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
I'm about to connect by garage door opener to HomeVision. I'm tapping
off the +5V output from two microswitches which are triggered when the
door is open and closed respectively (a neat way of sensing I though).
HV needs a common ground and +5V signal applied to an input port. The
question is - if, in the future, I want to monitor something else
similar that has it's own ground or 0V, will I run into problems
connecting all the grounds together? (what's a ground loop so often
spoken about by Keith D?)
Paul.
[Non-text portions of this message have been removed]
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