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 […]
Timer Circuits
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: […]
LED Binary Counter Circuit
This project is for LED Binary Counter Circuit It uses IC 555 timer as clock pulse generator. And it uses 74HC4040 binary counter IC. LEDs are connected to output which show binary count. It works from 6V battery or DC supply. Circuit Working: Parts List: Component Value Quantity Resistors 1k 2 10k 1 220Ω 1 […]
Simple LED Heart Blinker Circuit with IC 555 Timer
This Simple LED Heart Blinker Circuit with IC 555 Timer is very easy project. It uses one timer IC and one transistor. LEDs are fixed in heart shape so it looks nice. When we give 9V battery power then LEDs start blinking in heart pattern. This project is easy for beginners. It is also good […]