Step 7:

Connect another LDR between PIN5 of LM324 and Vcc. Connect one 10K ohm resistance between PIN5 and Ground. See the figure:


Step 8:

Connect the ULN2003 and connect its PIN8 to Ground as shown below:.

Step 9:

Connect PIN1 of LM324N and PIN1 of ULN2003. Connect PIN7 of LM324 of LM324N and PIN7 of ULN2003. See figure:



Step 10:

Connect one simple LED and a 100 ohm resistance in series so that one terminal of resistance connects to Vcc and negative (shorter) pin of LED connects to PIN16 of ULN2003. See the figure:


Step 11:

 Connect another simple LED and a 100 ohm resistance in series so that one terminal of resistance connects to Vcc and negative (shorter) pin of LED connects to PIN10 of ULN2003. See the figure:



Step 12:

Now connect middle wire of one 10K Potentiometer to PIN2. Connect one pin of potentiometer to Vcc and one pin to Ground. Similarly connect another potentiometer to Vcc and Ground and its middle wire to PIN6 of LM324N. See










 


 
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