Introduction: SIMPLE LIGHT DETECTOR

IN THIS INSTRUCTABLE WE WILL LEARN HOW TO MAKE A SIMPLE LIGHT DETECTOR USING LDR!THIS PROJECT DOESNOT CONTAIN ANY USE OF TRANSISTORS LIKE YOU SEE ANY WHERE ON INTERNET.

THINGS NEEDED ARE

1)LDR

2)220ohm AND 1ohm RESISTANCE

3)LED OF ANY COLOUR

4)9V POWER SUPLY

5)BREADBOARD

Step 1: INSERT LDR IN BREADBOARD

INSERT LDR IN ANY ROW OF BREADBOARD.

Step 2: INSERT 220OHM RESISTANCE

INSERT 220ohm RESISTANCE IN THE SAME ROW AS THAT OFANY ONE POINT OF LDR.

Step 3: INSERT LED

INSERT +VE END OF LED IN THE SAME ROW OF THE OTHER END OF RESISTANCE

Step 4: CONNECT 1ohm RESISTANCE ON -ve END OF LED

Step 5: CONNECT OPEN END OF LDR TO +VE END OF BATTERY AND OPEN END OF 1OHM RESISTANCE TO -ve END .NOW ENJOY LGHT DETECTOR

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