Engineering Projects

Clock Circuit Description:- Clocks are important companion of our daily life. They say, “Time and tide waits for none”. So, clocks play a vital role in our progressive routine. Wrist watches, table clocks are not the only devices available to display time, there are multiple ways to do so. The project discussed here draws the layout to build an electronic clock which provides all features like a normal clock does. Fascinating fact about this circuit is that it can be operated either from the AC power line, or from an…

Read More

A multi-function calculator is designed within a single IC such that it executes five operations which include four basic arithmetic functions and one add-on or discount percentages. It constitutes of a simple layout of a keyboard with ten numerical keys, and six function keys plus a decimal point key. This IC is a general outline of simple calculator which can perform all of the logic and storage functions in one single, 28-pin IC. Light weight and inexpensive features add to flexibility in use of this calculator. Using the basic principle…

Read More

What is Complex sound generator? Internal noises; noise within a system, are treated as disturbances and we make attempts to reduce it to a lowest level possible. There is another way to eradicate noise and on the other hand, take benefits from the noise itself. It sounds completely insane, don’t you think so? The circuit we are going to discuss here reveals the mystery. The circuit entitled, ‘Complex sound generators’ makes use of this waste like internal noise and tones to produce special effect sounds.  The disturbance is thus replaced…

Read More

This project is all about LEDs. It gives basic guideline of how LEDs can be used to design something new in a better way. This article entitled; ‘DOT/BAR DISPLAY DRIVER CIRCUIT’ accepts variable input voltage and turns on one or more LEDs corresponding to the instantaneous voltage of the input. We can thus conclude that LEDs are here used to provide visual display of the magnitude of the input signal. Depending on the requirement, the circuit offers two modes of operation, out of which one produces a single moving dot…

Read More

At times, determining the fluid level can become very tiresome. When the stored containers are dark-coloured, it gets more difficult. With automations taking over hectic activities, a special project, fluid level detector has been developed to eradicate this issue. The circuit of fluid level detector comes with a limitation; it can be used to measure non-flammable fluids only. In this particular circuit, the fluid level detector is used in conjunction with a thermo-resistive probe to measure the levels of fluids under consideration. A light is interfaced to one of the…

Read More

In comparison to multiple microprocessor controlled TV games, the game dedicated ICs differ quite a lot. The video game IC discussed here is a fine example of game IC which provides a selection of tennis, soccer, squash, practice, and two rifle shooting games. It can be a surprising fact that this multi-feature IC is the simplest form of game dedicated IC, available on the market. To add more, second IC can be included in the circuit to provide a colorful impact on the game. The video game circuit offers two…

Read More

LEDs are probably the only components to offer a wide range of applications. It can be used either to describe the working of the circuit or with LED itself, a complete circuit can be developed. The LED flasher circuit makes use of this amazing component to turn it flash on and off. The LED flasher circuit employs a voltage source, capacitor, and LED. This project requires voltage supplies varying from 1.15 volts to 6 volts typically because of which the circuit can be operated with a single battery cell making…

Read More