Pulse Generator Circuit Cum Timer Circuit

Engineeering Projects
circuit diagram of pulse generator cum timer circuit

A pulse generator circuit cum timer circuit is a multipurpose instrument. In the case of the electronics field, it is that apparatus without which the design of the project becomes a complicated task. Multiple types of such circuits might have been available in the market. But the circuit we are going to discuss here overshadows them with the range of features it offers variable frequency, variable pulse width, and variable amplitude. To add more to it, we can use this instrument like a timer too in case of need. It…

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Electronics Gambling Game Circuit

Engineeering Projects
circuit diagram of electronic gambling game circuit

Gambling is quite fun if played wisely. Due to the fact that rolling of dice can be disturbed and may not be precise, use of dice might not be more appealing. The game can be modernized in the form of electronics circuit. This project, ‘Electronics Gambling Game Circuit’ is the result of such thoughts. This project makes the game more precise and at the same time is much simple and inexpensive. With the fact that any normal individual after gathering basic knowledge from electronics can design this electronics game, this…

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Grasshopper Sound Generator Circuit using 555 Timer IC

Engineeering Projects
circuit diagram of grasshopper sound generator

Electronics projects just because of the name must not, always be complicated and advance level projects. Small projects play a vital role in the field of electronics. Here is a similar basic project which is named, ‘Grasshopper Sound Generator Circuit Using 555’. The project will surely entertain children and for electronics beginners, this project is the best option to start with. Especially at night times, we do often hear the shrill sound of grasshopper or cockroach. This project also produces a similar sound (PI-PI sound like grasshopper) and for this…

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Christmas Decoration Circuit With Music

Engineeering Projects
circuit diagram of Christmas decoration

Simply, by name of the project ‘Christmas Decoration Circuit With Music’ it can be easily understand that this project is concerned about decoration. Different kinds of item are available nowadays in the market for decoration. Where you can buy/pick one of the item from market or you can make it one. The interest lies on the things you have created with yours owns. Definitely, this project is your interest and can be used in Christmas decoration. Circuit Description of Christmas Decoration Circuit With Music : – The circuit of Christmas…

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Car Reverse Horn Circuit

Engineeering Projects
circuit diagram of car reverse horn

Unexpected incidents occur in the road when the driver is unaware about certain activities that may lead to accidents in the vicinity. For instance, suppose you are on a trip with your family and driving along the narrow road, while you were in the middle of conversation, you notice car right at the front is driving backwards towards your car and in seconds is going to hit you. It may be too late before you realize the situation. Maybe if you had known earlier, you could save yourself and your…

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Telephone Amplifier Circuit

Engineeering Projects
circuit diagram of telephone amplifier circuit

Telephone talks are meant to be private or kept in between two persons engaged in the conversation. But, sometimes it is also necessary to have a group talk. The project entitled Telephone amplifier circuit serves us right. It is very simple, yet inexpensive and useful which uses very common power amplifier LM386 and some more components. The circuit can be used to produce loud sound to discuss or start a conversation in a group through telephone. Working of the  Telephone Amplifier Circuit The signal emitted as output from telephone is…

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Multi Sound Generator Circuit

Engineeering Projects
circuit diagram of multi sound generator

Sound generating circuits fascinates everyone. Dedicated circuits are available in the market to provide a single type of sound or technically it can be said as ‘circuits with one level of intensity of sound’. In contrast to those circuits, here we present you a multi-sound generator circuit which offers a wide range of sound intensities as directed by the name of project itself. The multi sound generator circuit is designed such that it produces a total of eight different levels/types of sound from the single circuit. This is what makes…

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Electronic Siren Circuit

Engineeering Projects
circuit diagram of electronic siren

Multiple alarm circuits are developed and are distributed in the market so as to serve the needs and demands of client. Though the design parameter may vary, but all circuits are based on the same principle to provide security services under probable conditions. Designing these circuits becomes entertaining with different sound effects we can use during the designing phase.   A similar electronic siren circuit is depicted in the figure below. The electronic siren circuit is different from other siren circuits from a fact that it uses a dual-amp MC1458,…

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Battery Saver Circuit

Engineeering Projects
battery saver circuit

“Dry cell is not rechargeable”, this is what people think. This concept can be proven wrong by this particular project ‘Dry cell charger‘. Now here is another electronics trick to make the concept of ‘Battery Saver’ come true. The project battery sever not only charges dry cell but also enhances battery life by saving energy. The project ‘Battery saver circuit’ is considered very useful project for those, who run their appliance solely based on dry cell. Circuit Description Batter Saver Circuit:- The circuit is so simple that anyone can understand,…

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Simple Touch Switch Using Two Transistor

Engineeering Projects
circuit diagram of touch switch

The project shown here is of simple touch switch circuit using two transistor which is used to control various types of electrical appliances like electrical bulb, fan, door bell etc. The complete circuit is build around two general purpose transistors, a relay and a touch plate. The length of wire connected between touch plate and base of transistor T1 must be short as possible, where size of touch plate must not exceed the size of 1 rupee coin. Transistor T1 is used as signal amplifier where T2 is a relay…

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