Simple Doorbell with DC Backup Power Using UM66 IC
A doorbell with DC Backup Power is a doorbell circuit that is even operational when the main power … Read more
Fizzah Beig
Bird Sound Generator Using 555 Timer IC
Bird sound generator, as its name, suggests, outputs the chirping sound of birds. This electronic bird chirping circuit, … Read more
Simple Buzzer Circuit with NE555 IC
A Buzzer Circuit here is a sound producer with simple circuitry involving NE555 timer IC along with a … Read more
Simple Beeper Sound Circuit Using IC NE555
A beeper Circuit is a small circuit that produces a Beep-Beep sound. The simple circuit involves a NE555 … Read more
Top 3 Simple Timer Circuits
Today in this post we will discuss the top 3 simple timer circuits. A timer switch or timer … Read more
Simple Light Sensor Circuit
A light sensor circuit activates when light is detected by the circuit. It is a simple circuit including … Read more
Simple Clap Switch Circuit using NE555 Precision Timer IC
Clap switch circuits work by detecting the sound of a clap, whistle, or any other sound of the … Read more
IR Receiver TSOP4838 Circuit
An IR receiver circuit is a simple circuit including an IR receiver and a transistor. In this circuit, … Read more
Audio Level Meter Using 2n3904 Transistors – DIY Projects
The audio level meter is a circuit that detects and measure the level of audio/sound in the surrounding. … Read more
Simple LED Flasher Circuit Using LM3909 Oscillator IC
LED Flasher Circuit, here, uses LM3909 as the main operator. It is a very simple, cost-effective circuit that … Read more
Two-level Temperature Switch Circuit with LM358
The two-level temperature switch measures two different temperature ranges. After that, the relay turns ON/OFF corresponding to the … Read more
Simple Telephone Line Tester Circuit
Telephone line tester circuit is more like a meter. Also, it is a very simple circuit involving just … Read more
Four-Level Temperature Indicator Circuit Using LM324
The four-level temperature indicator is a circuit that represents different temperature levels through the lighting of four different … Read more
Telephone Line Amplification Using LM386
The telephone amplifier circuit, as its name suggests, amplifies the incoming calls to be heard in a room. … Read more
Bidirectional Intercom by using LM386 IC
Intercom Circuit is a bidirectional communication application for the ease of not-so-far-distant communication. The intercom is simple and … Read more
Door Knock Sensing Doorbell using Piezoelectric Sensor
A doorbell, here described, is activated as soon as a door knock is heard on the door. It … Read more