Re: Automated stairway lights

["Steve Edwards" <edwards_sj@xxxxxxxxx>]

--- In ukha_d@xxxxxxx, Simon Ryley <simon.ryley@...> wrote:

> How did you do movement sensing on your system?  I was planning on
> staying away from wireless, and using a SM10E connected to a couple
> of ceiling PIRs, with possibly a door switch as well, all wired in
> parallel.  http://www.letsautomate.com/10258.cfm?
> Then a CM11 doing the control bit.

I haven't actually got the movement sensors in place yet, my little'un
won't sleep without the upstairs hall light on of a night so it's just
controlled by a timer at present.

I have cabled for sensors, and plan to wire them into my homevision
eventually.

The one thing I will say is to remember that each X10 signal takes a
short time to send, for example:

1) Sensor triggers powerflash
2) powerflash sends X10 Command
3) X10 received by the CM11
4) CM11 Sends X10 to turn on light

You will be looking at a couple of seconds before the lights come on.

To reduce this delay you could set up the system like this:

1) Sensor triggers powerflash
2) powerflash sends X10 to turn on light
3) CM11 detects light on command and sends X10 to turn the light off
after a set number of seconds

Cheers

Steve




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