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IC555 Mini Projects

Practically tested best selection of simple mini projects using IC555. You can construct them at home for your school and college submission. Readymade and lab tested PCB layouts are also included with each project. For complete details of IC 555 working we suggest to read our most popular article: How IC 555 timer works?

This is a special application of IC555 clap switch with timer mini project. It uses a condenser mic to pickup the clap like sharp sound and trigger the IC 555 designed as monostable multivibrator, as shown in the following circuit. Working of the circuit The circuit uses one condenser mic to receive the clapping sound and Read More

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This is a very interesting IC 555 soft touch switch door lock mini project. It is very easy to construct and useful for your school or college level mini project submission. The actual size PCB layout of the project is also given here, so that you will be able to construct it within an hour if Read More

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This is another circuit of IC 555 infrared burglar alarm project. It is very simple to construct and submit it as a mini project for your school and college level project submission. The basic idea of the circuit is almost same used in the previous circuit of IC 555 simple burglar alarm, only the wire loop Read More

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This is another circuit of IC 555 simple burglar alarm mini project. It has been fully tested in our lab and its PCB layout is also given below. The circuit uses the simple trick that whenever, pin-4 i.e. the RESET pin of IC 555 is grounded, all its functions stop. But when it is raised to Read More

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IC555 Fuse indicator cum pilot lamp

This is the circuit of IC555 Fuse indicator cum pilot lamp. You can use this circuit for mini project application in your school or college. The circuit is very simple to construct and uses simple trick that whenever, the external capacitor C1 is fully charged the output of the IC remains LOW, but when the fuse Read More

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ic555 adjustable duty cycle flasher PCB

This circuit of IC 555 as adjustable duty cycle flasher is unique. It uses the trick of charging the timing capacitor C1 through two different paths of resistors R2 and R3, via two independent diodes D1 and D2. Working When power supply is connected to the circuit (9V, PP3 battery) the timing capacitor C1 starts charging Read More

Filed Under: IC555 Mini Projects