Here is the circuit which produces a sound similar to the police siren and is built using NE555 Timer. Two 555 timers act as an astable multivibrator.

This is a simple circuit used to decorate your house by building christmas lights using LEDs. The lights will get ON at night and OFF in morning time.

A Multiplexer accepts many inputs but gives only one output where as a demultiplexer accepts one input but gives many outputs. Get more information here.

This is a simple Boolean algebra calculator circuit which works as a portable calculator to simplify the Boolean expressions and displays the output.

Read this post to get good idea about circuit diagram of metal detector. Metal detector is used to check the persons in shopping malls, hotels, etc.

Pre Amplifier: This circuit is based on double operational amplifier NE5532N. The audio is coupled by C26, until the pin 3 of ic5A is amplified and coupled

How to Connect a UPS / Inverter to the Home Supply System? Working Principle & Operation of Automatic UPS / Inverter Automatic Inverter / UPS System Connection & Wiring Circuit Diagram Introduction to Automatic Inverter / UPS Wiring Why & Where we Need Auto UPS / Inverter System?

Clap Switch Circuit is a basic electronics project, made from the basic components such as IC 555 Timer, BC-547 Transistors LED Resistors, Capacitors etc. Clap sound. Working and Schematic Diagram of Clap Swith Circuit

Here, we are building an Automatic Washroom Light Switch circuit, which automatically turns ON the lights when a person enters the washroom and it automatically turns OFF when he leaves it.

In this circuit, LED glows slowly in the beginning, then brighter and once again it becomes dim. The circuit is operated by operational amplifier IC LM358.

Virtual Ground Circuits from Voltage Regulators These circuits enable a two conductor DC power supply, DC wall adapter, or a battery to...

Most of the comments shared with a lot of various electronic circuit diagrams simple structure can be easily implemented with less material on board is the circ

CD4027 is a JK flip flop that is generally used for data storing. Get complete idea about how to understand JK Flip Flop using CD4027 Circuit.

Working of Wireless Switch Circuit using CD4027. Using this circuit, you may operate any electrical appliance by just passing your hand above LDR.

This circuit is used to generate the output voltage (24V DC) whose magnitude is double of the supplied input voltage (12V DC). Hex Inverter IC CD4049 is used in this circuit.

Frontispiece. Solar and earthly dynamo. The three circuits: a study of the primary forces. 1892,

Here is the simple project circuit named Electronic Letter Box which is very useful in our real life to identify the letter dropped in our box using LEDs.

Design of OR gate, AND gate, NOT gate using universal gate - NAND gate. Circuit Diagram, Truth table and design of basic logic gates using NAND gate.

Read this post to know about interfacing 16x2 LCD to PIC18F4550 microcontroller. PIC18F4550 belongs to the PIC18F family and is an 8bit microcontroller.

In this post, we have published about Half wave rectifier circuit, characteristics and its working. It consist stepdown transformer, diode, load resistance.

Circuit diagram and working of variable voltage power supply from fixed voltage regulator. Voltage regulator is used to get fixed voltage at the output without depending on the input voltage.

This street lights that glow on detecting vehicle movement project is built using microcontroller and is used in street lights, highways, parking areas,etc.

Here is a simple electronic plant watering system circuit designed using 555 Timer and is used in watering plants automatically without any human interference.

Here is an unbiased electronic led dice circuit using 555 timer. By using this circuit, no one can cheat others as the circuit operates at high speed.