Category: Electronics Projects

Sound Level Meter Circuit using Arduino

Engineeering Projects
sound meter circuit using arduino

The circuit posted here is of sound level meter using arduino uno board, microphone, Amplifier section and LCD module. The basic function of this project is to measure the intensity of sound and display the result in LCD module. This project can be used in any small closed room like living room, class room etc. The result of sound level is display in LCD module in decibel unit. Here, we had used normal microphone despite of any expensive microphone or sensor. We had already built a sound level meter using…

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Arduino Based Car Reverse Alarm

Engineeering Projects
car reverse alarm using arduino

Arduino Based Car Reverse Alarm: We prefer to stay alert than to face the consequences as the result of our ignorance. They say, ‘Prevention is better than cure’ and this project; “Car Reversing alarm” serves us the right purpose. It is designed such that the device sounds an alarm as individual reverses a car for parking in a specific location and it detects any sort of obstacles there, that may create unwanted troubles. The device outputs audible sound wave as well as a visual indication to make the individual aware…

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Automatic wiper for Automobile using Arduino and Rainsensor

Engineeering Projects
automatic wiper system for automobile using arduino

Automatic wiper for Automobile using Arduino and Rainsensor: The project we are talking about is an automatic screen wiper system that monitors the intensity of rainfall and controls the frequency of operation of the wiper accordingly. According to WHO, more than 1.25 million people die every year because of road crashes and mostly in rainy seasons. People end up dying because of small mistakes. Here we have forwarded an attempt to reduce that number. The project is especially suited for car. The project is centered around Arduino UNO board. So…

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Metal Detector Circuit using Arduino

Engineeering Projects
metal detector using arduino

A metal detector circuit using Arduino is an electronics device that is used to detect metallic abject like metal coins, iron ore, aluminum or silver, gold, etc. This device can be used in a place where metal detection is mandatory like a hospital, airports, etc. because it can be harmful. We had already posted a simple metal detector circuit using transistors and RC components. The working principle is the same excepting the processing circuit. The metal detector circuit posted here uses an Arduino UNO board or equivalent. This project can…

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Automatic battery float charger circuit

Engineeering Projects
automatic float charging circuit

Automatic battery float charger circuit: This article aims to develop a battery charger circuit using the principle float charging technique. Afloat charger is also referred to as a smart charger, maintenance charger, or storage charger because it charges the battery at the same rate at which it self-discharges. The main reason for using a float charger is, that it protects the battery from overcharging and deep discharging. Thus, you can connect the float charger circuit to a battery for indefinite intervals of time i.e. there is no need to disconnect…

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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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