Step 1:

Collect all required components (Quantity of materials are given in second page)

Step 2:

Take a bread broad

Step 3:

Connect the wires as shown below.

We use this connection so that Vcc and Ground comes on either corner lines.

Step 4:

Now connect IC7805 as shown below:

Step 5:

Connect LM324N as shown below:

The mark on LM324N represents the starting of pin numbers. Left side pin is PIN1 and right side pin is PIN14. PIN4 is connected to Vcc and PIN11 is connected with Ground.

Step 6:

Connect one LDR between PIN3 of LM324N and Vcc. Connect one 10K ohm resistance between PIN3 of LM324 and Ground. See the figure:


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