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.

 

Laser Security Alarm Circuit

Security is main concern for various buildings, houses and offices. For this purpose, there are a variety of security alarms...

DIY Piano

Piano is developed by connecting a 555 timer ASTABLE multivibrator with variable frequency to a speaker. Piano is a wonderful...

Clap On Clap Off Switch

A "Clap On Clap Off" switch is an interesting concept that could be used in home automation. It works as a switch which makes...

IR Based Security Alarm

IR based security alarm circuit can detect any movement and trigger the alarm. This circuit is very useful in homes, banks,...

Voltage Doubler Circuit

Voltage doubler is the circuit where we get the twice of the input voltage, like if we supply 5v voltage, we will get 10 volt...

RGB Bulb

All the colors can be made from Red, Green and Blue color (RGB), these are the basic three colors from which we can generate...

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