Re: HA Holy Grail #1: Occupancy Detection

["Tim Hawes" <timsyahoo@xxxxxxxxxxxxxx>]

How about a temperature sensor on the hot water feed to the shower, or
on the drain. If the pipe is hot, the shower is in use.

Any good?

Tim.

On 8/30/06, David Gumbrell <david.gumbrell@xxxxxxx> wrote:
> Hi Ian,
>
> Yes, really the issue is one of positioning a sensor (whether it is
PIR or
> sonar) to get "view" into shower cubicle whilst keeping it
out of the
> "zone", or having to meet any necessary IPxxx / SELV
requirements. The Part
> P stuff makes me very careful about the installation of automation
stuff in
> the bathroom, and I'm also trying to avoid the ceiling getting
"sensor
> rash".  Really, I probably put the main sensor in the wrong
place, I should
> have mounted it further into the room and closer to the shower
surround and
> then there would be no issue.
>
> Cheers,
>
> David