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 using IC 555 and LM358

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

  • DIY Piano using 555 Timer IC

    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 using IC 555

    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 Circuit

    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 LED Bulb using 555 Timer ICs

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

  • 555 Timer Bistable Multivibrator Circuit

    Bistable Multivibrator mode of 555 timer IC is the easiest mode of 555 timer IC, where Monostable multibrator mode has one...

  • 555 Timer Astable Multivibrator Circuit

    Astable Multivibrator mode of 555 timer IC is also called Free running or self-triggering mode. Unlike Monostable Multivibrator...

  • 555 Timer Monostable Multivibrator Circuit

    Monostable multivibrator (MMV) mode of 555 timer IC is also called Single shot mode. As the name indicates, only one state is...

  • 2 Digit Object/Product Counter Circuit

    Object counters or product counters are important applications used in industries, shopping malls, etc. They count objects or...

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