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Mains electricity question...

bfreeman

Sep 12, 2018
1
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Sep 12, 2018
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Hi
First time poster. Doing a DIY project building open cupboards with lights inside. I am trying to have the lights EITHER switched from a single wall switch whereby they will all come on OR an individual light only coming on from a mini PIR sensor. See the diagram attached. At the moment, if I was to wire it up, all of the lights would come on from either the switch or any of the PIR sensors. If it was DC I would put a diode between each LED driver and the switch but this is running on 220V AC. Is there any way to get it working how I want? I could put a separate LED driver in each branch but that is quite an expensive way of doing things.
Thanks
Ben
20180911_174254_resized.jpg
 

Hopup

Jul 5, 2015
253
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Jul 5, 2015
Messages
253
You could probably do it with microcontroller and some relays with ease.
 

kellys_eye

Jun 25, 2010
6,514
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Jun 25, 2010
Messages
6,514
I recall seeing some PIR lights that have the ability to come fully 'on' by flicking the mains switch on/off (twice) otherwise they work as ordinary PIR controlled lights.

Maybe have a look for the operating instructions of the PIRs you have in mind - they may already have this facility.
 
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