Lighting Project

[IceXist]

Hi,

I have a LED lighting strip that is running 120VAC 60Hz that I want to place under my door for ambient lighting. I want to, when I move my door at any position, to have the light strip turn on for probably around 5 seconds and then turn off, but it would be nice if i could easily change that time.

Any help would be great!

Thanks,
IceXist

 

[4pyros]

What kind of door? Dose your light strip have a step down transformer? You could possibly hack a toy with a sensor and timer built in. Andy

 

[LTX71CM]

How about a **broken link removed** based on a 555 timer. Replace the switch with a vibration switch and whenever your door moves, you have 5 seconds of light.

 

[IceXist]

will the 555 timer circuit handle 120vac? I'd like to have it run as a switch on the power cable.

 

[LTX71CM]

No, but it can handle a relay. You would have to separately power the 555 though. I don't know of any off-the-shelf AC mains powered products that fit your need.

 

[IceXist]

So how would you connect the 555 circuit to the relay?

 

[4pyros]

Dose your light strip have a step down transformer? Andy

 

[IceXist]

no it doesn't

 

[4pyros]

OK than you will need a relay to switch the power to the lights, and control it with a vibrashoin sensor of some kind powered of a seporat low voltage power supply.

 

[IceXist]

so basically what LTX71CM said...

 

[4pyros]

so basically what LTX71CM said...

Yes if the LEDs run directly off AC line voltage. You will need a power supply, a sensor, a timer and a relay. A triac with a RC delay may work with a sensor also. Good luck Andy

 

[zhyh000]

a mercury switch, a 555 timer, and a relay are able to finish your project, i think.

Fix the mercury switch on the door so that any locomotion of the door will trigger the switch. Then it sends a signal to 555 timer and to relay, as well, to turn on the LED strip. After several seconds the 555timer turn off LED strips.