PE-B1: LED on/off Circuit

Dr. Dattaraj Vidyasagar
July 28, 2023
December 29, 2023

This entry is part 1 of 3 in the series Basic Electronic Circuits

Basic Electronic Circuits

PE-B1: LED on/off Circuit
PE-B11: DC Motor Speed Control Circuit
PE-B13: Automatic Street Light Control Circuit

In this experiment we will see how to make an LED on and off using a switch on breadboard.

Download the set of Practical Electronics Notes & Workbook and start constructing interesting circuits at home.

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Details of material required

About Components

Resistor: It protects the LED from burning.
LED: There are different colors of LEDs – Red, Green, Yellow, Blue, White and Multicolor LED.
Switch: It become ON when pressed and becomes OFF when not pressed.

Circuit diagram & Working

Construct the first circuit in practical electronics and start the journey of fascinating world of practical electronics. — All components are in series. When we press the switch SW1 the LED is ON and when we release Sw1, the LED is OFF.

About LED On/Off Circuit

This circuit is called buffer circuit in digital electronics.
It is used in computers and Android phones.

Circuit Diagram

Buy complete workbook of Practical Electronics just for Rs.49. The downloadable PDF copy contains 15 basic projects of practical electronics with complete details. It will help you construct more advanced circuits in practical electronics.

Series NavigationPE-B11: DC Motor Speed Control Circuit >>

Dr. Dattaraj Vidyasagar

M.S. Electronics & Telecomm. (Cleveland Institute of Electronics, Ohio), Associate Member (IETE, Kolkata), Panelist on Dr. Homi Bhabha Foundation, Google certified educator (Level-1), Mentor of Change (MoC-1619) Niti Ayog, Government of India, International Robotics Trainer, Veteran of Applied Electronics since 35+ years.