Motion sensored LED Schematic

[alexhofmans]

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:

 

[Drqadeer]

hai here is the circuit diagram you can use any npn ransistors for example C945, C828, C1383, D1383
https://obrazki.elektroda.pl/4560758300_1367466185.png

R1,R4 68K,,,,,,,, R2,R3 use to set timing of led's flash or cange the value of capacitor...
usually capacitors can be used of 10uf and R2,R3 also 10K...

 

[Audioguru]

The simple multivibrator circuit posted simply flashes the LED on and off over and over. You do not want that.

 

[betwixt]

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.