Here i have made a model project of automatic street light. When Darkness will appear on it, led will glow automatically & when light will appear on it, led will off automatically. You can also make this by following easy steps.
Step 1: Understanding Circuit Diagram
Here is the circuit diagram of automatic street light. This is very easy diagram. Just follow it. You will also able make one.
NOTE: This is a standard circuit diagram. If you are following this diagram, you will need extra wires. I have followed same diagram but made different structure, as a result it didn't take extra wires. So choose structure wisely!
Step 2: Gathering Ingredients
1x330 ohm resistor
1x220 k ohm resistor
9V Battery Holder
Black or white tape
Both side sticking tape
Step 3: Finalising
Dig holes on PCB Board by PCB Drill. Then solder all the components according to the diagram by soldering iron. Finally stick wires & battery with tape. Hurrah! You have made it!
Feel free to share & comments!