555 Timer Circuits

555 Timer IC is one of the commonly used IC among students and hobbyists. There are a lot of applications of this IC, mostly used as vibrators like, ASTABLE MULTIVIBRATOR, MONOSTABLE MULTIVIBRATOR and BISTABLE MULTIVIBRATOR. You can find here some interesting circuits based on 555 Timer IC by using these different operating modes.

 

  • Heart Shaped Serial LED Flasher

    In this tutorial we are going to build a Heart shaped serial LED flasher circuit using 555 timer IC and 4017 IC. It is an...

  • Reaction Timer Game using IC 555 and IC 4026

    Reaction timer is a game to test how fast you reacts. This game which we have developed using 555 IC is for two players where...

  • 1 Minute Timer Circuit using IC 555

    As the name suggest 555 timer is basically a “Timer”, which create an oscillating pulse. It means for some time output pin 3 is...

  • Clap Switch Project using IC 555

    Clap switch is an interesting hobby circuit which turns on the lights with a clap sound. Although its name is “Clap switch”,...

  • Rain Alarm Project using IC 555

    Rain alarm is an application which detects the rain water and blows alarm. They are useful devices and play an important role...

  • Fire Alarm Project

    Fire alarms are prime necessities in modern buildings and architectures, especially in banks, data centers and gas stations....

  • Negative Voltage Generator using IC 555

    In electronics applications sometimes we need negative voltage. However getting a negative supply source is not a reliable...

  • Doorbell using IC 555

    Doorbell is a very common and useful device used in every household. Among electronics students and hobbyists, doorbell circuit...

  • Police Light Circuit

    In this project we are going to design a circuit, to make a flashing light similar to that on a police car. This police light...

  • Servo Tester Circuit using IC 555

    Servo motors are basically rotary actuators that enable precise control of angular position, acceleration and velocity in...

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