On 30/03/2020 23:33, Robin wrote:
On 30/03/2020 23:00, petek wrote:
I'm hoping to install 3 outside LED light fittings controlled by 2 PIR
switches - all lights to come on if either of the switches triggers.
I've done a cursory search on t'internet but can't find any 2 way
PIRs. The ones I've seen don't mention if they are 1 or 2 way so I
presume they must be 1 way.
Can anyone recommend or post a link to a suitable 2 way PIR?
I don't think you want a "2 way PIR".Â* (I'm not sure what that would
mean.Â* If PR1 has turned the lights on then if PIR2 is also triggered it
turns them off?) Being pedantic, I think you want the lights on if
either PIR1 or PIR2 *or both* are triggered
You can do that by wiring two PIRs in parallel from the same supply. But
check the PIRs are OK being wired in parallel.Â* It's a while since I did
this and at that time some weren't at all happy with a live "coming back
at them" (as it were).
Belatedly realised this is probably covered in the Wiki, and lo,
complete with picture, from John Rumm :
http://wiki.diyfaq.org.uk/index.php/2_Way_Switching#Switching_with_multiple_PIRs
--
Robin
reply-to address is (intended to be) valid