Want a simple sound maker? then make noise with this electronic circuit. This small circuit makes loud beep sound from speaker using only one 555 timer. The circuit turns 9V battery into instant audio tone. This Audio Sound Generator Circuit using IC 555 is easy to build and is great for learning. Circuit Working: Parts […]
Timer Circuits
555 Pulse Generator Li-ion Battery Charger Circuit
Charging a Li-ion battery does not need big smart charger. But we can do it with one small 555 timer chip. This 555 Pulse Generator Li-ion Battery Charger Circuit makes fast little pulses that charge the cell gentle and safe. Anyone can build this circuit with very few parts and with very low cost. A […]
555 Timer Astable Multivibrator Circuit
This 555 Timer Astable Multivibrator Circuit is simple and easy. Astable means output never stays stable. Output keeps switching high and low again and again. Circuit creates square wave pulses. It is used for LED blinking, tone generation, clock signal and many hobby projects. Circuit Working: Parts List: Component Quantity Resistors 1k ohm, 100k 1/4 […]
555 Timer Monostable Multivibrator Circuit
This article explain simple 555 Timer Monostable Multivibrator Circuit. Circuit create one single pulse when trigger comes. Time period depend on resistor and capacitor. Circuit is easy to build. And this circuit can run from 5V to 12V power supply. Many people use it for delay, timer, reset pulse and for buzzer control. Circuit Working: […]
Obstacle Detection Circuit with 555 Timer and Ultrasonic Sensor
Want to build a smart obstacle detector without using Arduino? This simple project uses a 555 timer and an ultrasonic sensor to sense distance and control a DC motor automatically. It is easy to make with low-cost and perfect for beginners in electronics. This Obstacle Detection Circuit with 555 Timer and Ultrasonic Sensor is a […]
LED Blinking Circuit using 555 Timer
This is simple LED Blinking Circuit using 555 Timer. It uses 555 timer IC. Circuit make LED ON and OFF again and again. Good for beginner to learn 555 timer working. It needs few parts only and run from 9V battery. This circuit is easy to make and is a small fun project. Circuit Working: […]