Hello Guys,In this post we learn about how to make automatic street light in cheap price and easy way.
Let Start it:-
*specification
-Automatic light glow at night.
-Automatic light off at day.
-save electricity.
-made with less components.
-cheap in price.
*Parts Required
1,Transitor(Bc547)
2.Resistance(150k / 2.2k)
3.Light
4.LDR(light emitting diode)
*Schematics
-do all the connection according to this diagram.
-connect 9volt battery in input wire.
*How it Work
-place ldr front of day light.
-when light go on ldr then led will not glow.
-when light not go on ldr then led will glow.
-Enjoy.

