Making Of A

Digital SensorUsing LM324N

RAJESH ROSHAN

Components required

• BREAD BOARD

• SINGLE STRAND WIRES

• IC 7805

• LM324N

• POT 4K7

• 2 LEDs

• 1 PHOTO DIODE (LDR)

• RESISTORS (10K,100 ohm)

Let’s have a brief

introduction of all of

these components.

Bread Board

Resistors

Light Emitting Diodes

LDR/ Photo Diode

POT 4K7

IC 7805

(Voltage Regulator)

IC LM324

How To Make It…?