555 timer motion led circuit


Posted on Feb 6, 2014

The objective is to make a small light that is activated by motion and will remain on for 20 seconds and then deactivate. i. e. you pick up the light it illuminates youput it back down and it remains on for 20 seconds then turns itself off. until it is picked up again. I have a load of 510ohm 1/4w resistors(came free with tthe LEDs) but can easily buy more once I know what is needed.


555 timer motion led circuit
Click here to download the full size of the above Circuit.

I dont have any capacitors but guess I`ll need some of those also, what size I dont know where to begin. Anything else I might need Could someone help me out in getting these components onto a circuit to do the above task. If possible explaining it in layman terms so a simpleton like myself can purchase any extra parts and solder it all together. All electronics will be concealed inside the device which is being made out of 3mm translucent acrylic, Ive tested and 10 LEDs is suffient to illuminate through this. The batteries will be held in a battery holder(similar to this ) on the underside of the light box. I have some stripboard to mount the circuit. Im not sure if I have any more than I have already provided. they look exactly like the normal 5mm two legged ones. only difference is they change colour slowly. All electronics will be concealed inside the device which is being made out of 3mm translucent acrylic, Ive tested and 10 LEDs is suffient to illuminate through this. The batteries will be held in a battery holder(similar to this ) on the underside of the light box. I have some stripboard to mount the circuit. Im not sure if I have any more than I have already provided. they look exactly like the normal 5mm two legged ones. only difference is they change colour slowly. A big thanks for helping with this, electronics are like a foreign language for me. The light box is to be a part of a presentation, intially I was...




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