Motion sensored LED Schematic

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alexhofmans

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Hey, im trying to make a children's night light that when you rock it it turns on an LED light and stays on for a minute and then turns off. 8-O I have very little knowledge of electronics and circuitry but i was hoping someone could tell me how to do this or point me in the direction of a schematic of it?

any help would be greatly appreciated :grin:
 

The simplest solution is probably a tilt switch wired to the clock input of a 'D' flip flop. Connect the /Q output to the D input and the LED to the Q output. Use a transistor driver if more LED current is needed. It's a very simple and low cost solution and if battery powered it will draw almost nothing when the LED is turned off.

Brian.
 

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