Saturday, February 3, 2018

How To Working Solenoid Engine

Hi friend


Solenoid coil Engine 



This is how it will work









How To Make Automatic On&Off Street Light

Hi friends
    Today I gonna show you
how to work an automatic street light on&off
that is simple
Requirements:
1.one LDR
2.one BC 547 transistor
3.one 10K ohm resistor
4.LED



Next

The connections are shown in this image.







add test