Here circuit is responsible for lighting a bulb, when it receives light it turns off automatically and turns on when it is in dark, like street lighting lamps.
Materials-
1.- one LDR
2 .- one LED
3.- one 200k resistance
4.-one 330 Ohm resistance
5.- 6v powersupply
6.-one BC547 transistor
Thank you for watching
Post time: Jun-17-2017