Category: Electronics Projects

DIY Li-Fi Speaker | How to Design

Engineeering Projects
lifi speaker prototype

Here in the article I am going to show you “How to design DIY Li-Fi speaker” we are going to show you how to make Li-Fi speaker i.e. uses light to transfer data. This article consist of entire detail like design procedure, circuit diagram, and description. Introduction to Li-Fi (Light Fidelity) The term wireless has been gaining so much popularity in the recent years. Li-Fi is another block to growing platform. The term Li-Fi; Light Fidelity sounds somehow similar to Wi-Fi and they share a lot of common features. Both…

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Universal Arduino IR Receiver Circuit

Engineeering Projects
author prototype ir receiver

The project Universal Arduino IR Receiver Circuit works with any IR remote thus can control any electronic or electrical appliance like T.V., Fan, AC, Lighting bulb etc. Infrared Remote control as you know were introduce much earlier in the seventies. These day must electric/electronics device comes with inbuild infrared control system. Various devices like T.V., fan, AC or even a lighting bulb came with the features like remote control. But every IR receiver circuit responds only to assigned frequency i.e. it works only on fixed assigned frequency. Thus, every IR…

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LED Matrix Display using Arduino

Engineeering Projects

Today, I am going to teach you how to make an LED matrix display using Arduino. Here we had designed a 7×5 LED matrix display but can be extended as per desire. If you are using Arduino uno board the number of rows can be extended up to 14 and the number of columns can be extended up to 6. This is because there are only 14 digital pins (D0 to D13) and 6 analog pins (A0 to A5). Thus, you can make a 14×6 Led matrix display in the…

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5 Band Audio Equalizer Circuit using LM833

Engineeering Projects
5 band audio equalizer circuit using lm833

Today in this article we are going to show you the circuit diagram and description of the 5 Band Audio Equalizer Circuit using LM833. We already control 8W + 8W Stereo with a graphic equalizer, but this time we come with 5 Band Audio Equalizer Circuit. First, let’s talk about what an equalizer is. 5 Band Audio Equalizer Circuits using LM833 Equalizer circuits are those circuits that are responsible to maintain a balance between the frequency components. The project 5 Band Audio Equalizer Circuit using LM833 divides the audio spectrum…

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Christmas Music and Decoration using Arduino

Engineeering Projects
component used in Christmas decoration

In this Christmas season I wanted to do some funny stuffs using arduino. Previously few years back I had made a project Christmas decoration and music using discrete components. Now I had come with funny easy and interesting project using arduino and few other easily available electronics components. The project posted here plays three different popular Christmas tone i.e. Jingle Bell Jingle Bell, wish you merry Christmas and Santa Claus is coming to town. The interest lies on the thing you have created with you owns. Definitely this project is…

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ATmega16 Based Voting Machine

Engineeering Projects
atmega16 based voting machine

Atmega16 based voting machine: Well, the key word; Corruption is everywhere. I believe it is what comes together with politics. Yes, here we present an attempt to sweep a dirt away from this system. The project is concerned with development of an electronic voting machine which is built around an AVR microcontroller, which help us to create a fair election process at least. Electronic voting machines (EVMs) have been a necessity in government elections. On comparison to traditional methods, this machine provides a far more secure voting environment and reliable…

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Arduino based Bluetooth Controlled Car

Engineeering Projects
robot parts list

Today, we are going to show you how to make an Arduino-based Bluetooth Controlled Car. Previously we had already posted various types of robots like Arduino Gesture Controlled Robot, Dual Mode Robot, Arduino, and RF controlled Robot. The difference between previously posted robot projects and Arduino-based Bluetooth Controlled Car is, unlike others, that it does not require special types of control circuits. It can be controlled using any smartphone using the software. The best part of the project Arduino-based Bluetooth Controlled Car is you can wire it within an hour.…

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LED Cube 4x4x4 Circuit using AT89C2051

Engineeering Projects
led cube 4x4x4 projects

The world is all about visualization. Mesmerizing illumination has been introduced which provides a different level of satisfaction for human eyes. Using multi-pattern LEDs lights in a cubical representation is our contribution to this global trend. The project; LED Cube 4x4x4 Circuit using AT89c2051 microcontroller to create several light patterns. The cube designed for specific use in science laboratories is much easier to assemble. Previously, we had posted an LED Matrix Display using Arduino. Circuit Description of LED Cube 4x4x4 Circuit using AT89C2051 You can see the entire circuit of…

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Offline UPS Circuit

Engineeering Projects
inverter section and changeover section

Introduction to Offline UPS Circuit We all know that most electrical and electronic appliances are solely powered by the AC supply and the problem arises when the power is cut off in the middle or there is no power at all. In such cases, uninterrupted supplies are what we look out for. This is one of those uninterrupted power supply circuits. The fact that it provides an instant power supply from the batteries than standby generators that take long to operate, makes it more practical. To make the use of…

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Battery Status Indicator Circuit

Engineeering Projects
under charged condition

Here is a simple circuit using transistor called ‘Battery Status Indicator Circuit’ used to indicate two states of battery i.e. under charged and over charged. Previously, we had already posted similar circuit called Battery Voltage State Indicator using 741 used to indicate three states of battery i.e. charged, charging and discharge. Similarly, you can also design  circuit which indicate status of battery in 10 different level. Circuit Description of Battery Status Indicator The circuit of Battery Status Indicator Capacitor is shown in figure 1. The main components of Battery State…

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