Automatic Railway Gate Control Using Arduino & IR Sensor

john February 17, 2018 5 Comments
Automatic Railway Gate Control System Using Arduino & IR Sensor About a million people have died over the past 5 years in unmanned railway crossings all over the world. At least 1/3rd of the railway crossings are unmanned due to their remote placement and less traffic. The Automatic Railway Gate Control System using IR Sensor & Arduino focuses on systematic traffic control of railway gates that are both manned and unmanned. This project will not only make the system more...
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Variable Resistor – Working, Construction, Types & Applications

john September 22, 2017 No Comments
Variable Resistor – Working, Construction, Types & Applications One of the critical pieces in an electric circuit, the resistor is the most omnipresent electronic component. Available in wide varieties, these resistors can be used in various applications.  Resistors are broadly classified as fixed and variable resistors, according to the type of resistance value they offer. Here, in this article we shall discuss about variable resistors, its definition, types and uses. Let’s start! What is a Variable Resistor? A variable...
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Potentiometer – Working, Circuit Diagram, Construction & Types

john September 22, 2017 1 Comment
Potentiometer – Working, Circuit Diagram, Construction & Types Resistor, a small bundle of resistance, is one of the most used basic components in an electric circuit. Mostly used to regulate the current flow by adding/subtracting resistance from the circuit, these resistors are available in many shapes and sizes. These resistors can be broadly classified as fixed and variable resistors. As their respective names suggest, a fixed resistor has a single fixed value of resistance, whereas a variable resistor has...
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Varistor – Symbol, Working, Types & Applications

john September 22, 2017 3 Comments
Varistor – Symbol, Working, Types and Applications The small package of resistance, the resistor is used in so many circuits, in so many forms, that it is almost an omnipresent electric component. From the very basic fixed resistors, where the resistance remains unchanged, to different types of variable resistors, whose resistances change according to different factors. The variable resistors are of different types; there are ones in which the effective length of the resistive strip plays role in changing...
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Ballast Resistor – Working, Types, Applications & Uses

john September 22, 2017 1 Comment
Ballast Resistor – Working, Types, Applications & Uses According to the English dictionary, “ballast” means something that gives stability. Thus when referring to an electrical ballast, we mean an electrical device that plays an important role in maintaining the stability of the electrical circuit. However, the question you may have is how does it provide the stability? Some electric ballasts limit current while some limit voltage, depending upon the circuit in which they are used. By doing so, they...
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Digital Potentiometer – Working, Internal Structure & Applications

john September 22, 2017 1 Comment
Digital Potentiomter – Working, Internal Structure & Applications One of the most common types of variable resistors is the potentiometer. Potentiometer or “pots”, are three terminal devices, used to vary the resistance in a circuit. We have dealt in depth about this topic, in our article “potentiometers”, if you want to learn about the basics of a pot, this article will be useful for you. Pots that ware available nowadays varies in operation. Some are mechanically operated, while some...
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Rheostat – Working, Construction, Types & Uses

john September 22, 2017 1 Comment
Rheostat – Working One of the most omnipresent electric components is the resistor. In applications where variable resistance is required, potentiometers and rheostat are mostly preferred. We have already discussed about potentiometers in our previous article about the same. Here we shall discuss about rheostat in detail. What is a Rheostat? Rheostat is a type of variable resistor, whose resistance can be changed so as to change the amount of current flowing through a circuit. This device, was named...
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Ultrasonic Blind Walking Stick Using Arduino

john February 17, 2018 No Comments
Ultrasonic Blind Walking Stick According to the WHO, about 30 million people are estimated to be permanently blind worldwide. These people are totally dependent on others. They even cannot walk on their own. We have created designed and built an “Ultrasonic Blind Walking Stick” device which will help blind people to walk with ease independently. As a simpler version, we have used only one ultrasonic sensor in this project. For better accuracy and assistance two or three sensors can...
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Rain Sensing Wiper using Arduino and Servo Motor

jojo October 30, 2017 No Comments
Automatic Rain Sensing Wiper Using Arduino  This project is designed to build a car wiper that automatically detects the rainfall intensity and regulates the frequency of wiper operation. It is built, using Arduino UNO board. A rain sensing module is used for measuring the intensity of rainfall. And a servo motor is used for controlling the wiper movements. An LCD module is also attached to the controller for displaying the rainfall intensity. By measuring the amount of rainfall ,...
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Marantz SR-6011 AV Audio & Video Component Receiver, Black

john September 23, 2017 No Comments
Marantz SR-6011 Receiver Marantz is one brand that is known for making some of the most feature rich and premium class AV receivers and they are eyed by people seeking entertainment minus compromise. If you are looking for a top notch performer in this segment, the SR6011 from Marantz is worth a consideration. This versatile AV receiver sits somewhere between the siblings SR5011 and SR7011. It is quite future proof- in terms of features and performance wise trounces most...
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Circuit Diagram - Interfacing GSM Module Using Proteus

Interfacing GSM Module Using Proteus

john September 10, 2017 No Comments
Interfacing GSM Module Using Proteus The Proteus simulation software can be used to interface real-time modules like the GSM Module. By using this simulation feature the designer can develop the systems within the software and test all the features of the system that is under design without using any hardware components. The system can be standardized by comparing the performance of various components, like, for example a suitable microcontroller. This article explains how to connect a GSM Module to...
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Circuit Diagram - Password Based Keypad Door Lock

Keypad Door Lock using AVR Microcontroller – Atmega16

john September 10, 2017 No Comments
Password Based Keypad Door Lock  In this article, a digitally secured lock based on password verification is explained. The system uses a seven segment display array to show the password, a matrix keypad to enter the numbers/password and operates a relay (to activate the solenoid valve) for locking and unlocking purpose. The system alarms through a buzzer if a wrong password is entered for 3 times continuously and an SMS is sent to a predefined contact number. The password...
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Circuit Diagram - UART between Microcontrollers Using Proteus

UART Between Microcontrollers Using Proteus

john September 8, 2017 No Comments
UART Between Microcontrollers Using Proteus UART stands for Universal Asynchronous Reception and Transmission of data serially between two terminals. This mode of communication has the advantage of data transmission using lesser number of I/O Pins. For longer transmission distances this is essential as it involves less number of transmission wires. In this article, we shall see how two microcontrollers communicate with each other using their UART peripheral. UART Bridge Between Two Microcontrollers We shall discuss this through a simulation...
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Arduino Solar Tracker Using LDR Sensor & Servo Motor

john February 17, 2018 3 Comments
Arduino Solar Tracker Solar energy is one of the fastest growing industries in the world; today more than 65 GW energy is produced by solar power. Since solar energy is renewable, it is a good power source, especially for developing countries. In this project, I am going to show you how to make a solar tracker using Arduino Nano. The solar panel tracker is designed to follow the sun movement so that maximum light intensity hits on the solar...
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Onkyo TX-8160 Receiver– Review

john September 6, 2017 No Comments
Onkyo TX-8160 Review People buy various types of gadgets for availing entertainment nowadays and AV receivers are among the most widely poached appliances worldwide. Onkyo is among the popular AV receiver manufacturing companies and the brand has several popular models in its portfolio. Onkyo AV receivers are liked for their long feature lists and all round performance. The company also updates its product range periodically to cater to the needs of different types of users. One capable contender from...
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Interfacing External Memory EEPROM to 8051 Microcontroller

jojo September 28, 2017 No Comments
Interfacing I2C EEPROM IC (24C04) With  8051 Microcontroller  In this article, we are going to see how to interface an EEPROM IC to 8051 microcontroller. There are different kinds of EEPROM IC available in the market. The most commonly used EEPROM family is 24CXX series devices such as 24C02, 24C04, 24C08 etc. Here we are using the most common EEPROM IC 24C04, an LCD module and AT89S52 microcontroller (8051 variant) for this tutorial. AT89S52 is a typical 8051 microcontroller manufactured...
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RFID Reader and Tag – Ultimate Guide on RFID Module

jojo September 28, 2017 No Comments
This article is developed as an ultimate guide on RFID reader module and RFID tag – and explains how it works. We have published many interesting projects using an RFID reader module – like RFID Attendance Management System,  or RFID based Access Control System. We have also published simple RFID reader based projects like a Simple RFID Door Lock. All these projects make use of an RFID reader and an RFID tag. This article helps you understand more about...
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Learn to Build Real Time Clock using 8051and DS1307 RTC Module

jojo August 10, 2017 No Comments
Interfacing RTC Module (DS1307) With 8051 Micro controller In this article, we are going to see how to interface an RTC (Real Time Clock) Module to 8051 micro controller. There are different kinds of RTC module available in the market. We are using the most common RTC module that comes with the DS1307 IC, an LCD module and AT89S52 (8051 variant) for this tutorial. AT89S52 is a typical 8051 microcontroller manufactured by Atmel. Interfacing an RTC module to 8051...
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Spinning or Rotating LED Display using Arduino POV

jojo September 20, 2017 2 Comments
Designing a Spinning/Rotating LED Display In this project, we are going to show you how to make a simple “Rotating LED Display”  (also popularly known as Spinning LED Display) with Arduino. The motivation to make this project came to my mind when I saw a product in the market, in which a text message was clearly visible on a “Rotating LED Strip”. After that, I planned to make this project myself and Arduino is a good choice to build...
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Matrix Keypad Interfacing Using Proteus

john September 28, 2017 1 Comment
In this article let’s discuss designing of matrix keypads and the programming part to get the information regarding the pressed key. The Matrix keypads are used in systems/control panels where Human Machine Interface (HMI) is required in order to change the operating parameters of a system/machine. The Computer keyboard is also a matrix keypad. The name itself infers that it has some keys arranged in rows and columns. Here arrangement of keys doesn’t mean the layout of the keys...
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Onkyo TX-NR545 A/V Receiver – Review

john September 28, 2017 No Comments
Onkyo TX-NR545 7.2 Channel Receiver Review AV receivers are mostly eyed by people who want to enjoy awesome music quality and cinematic experience without leaving their houses. Onkyo AV receivers are popular with such entertainment seekers who want no compromise with audio and visual quality of media they consume. The Onkyo TX-NR545 is the smaller sibling of the company’s TX-NR646 model, aimed at buyers with modest budgets.  However, it would be incorrect to deem it as an entry level...
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Resistors in Series – Complete Guide

jojo September 27, 2017 6 Comments
Resistor, the most basic yet essential passive component of an electronic circuit, is nothing but a device that restricts the flow of current. So why is it called passive? It is called so because it dissipates power rather than generating it in a circuit. Some practical resistors are shown in the image below. In this article, we are going to learn in detail about Resistors in Series or in simple words a Series Circuit. The figure 1 (above image)...
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Automatic Irrigation System using Arduino

jojo September 28, 2017 1 Comment
In this project, we are going to build an automatic irrigation system using Arduino which senses the moisture of the soil and opens or closes the valve according to the moisture value. The moisture value and the valve status is shown on the Nokia 5110 LCD display. Before we proceed, let’s take a look at another project – a plant watering system using Arduino, which is very similar to our application. You may also read our other tutorials on...
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DC Motor Speed Control using GY 521 Gyro/Accelerometer and Arduino

jojo August 3, 2017 No Comments
In this article, we are going to control two motors by using the GY-521 accelerometer module. The speed of the motor will increase or decrease upon moving the GY-521 module up or down. On moving the Gy-521 towards the downside, the speed of the first motor will decrease and the speed of the other motor will increase; while on moving the GY-521 towards the upward side, the speed of the second motor will decrease and the speed of the first...
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Building A Real Time Clock using Dot Matrix Display on Proteus

jojo September 28, 2017 No Comments
Designing a Real Time Clock using Dot Matrix Display on Proteus Objective -Display Time on an 8X32 Dot matrix Display In this article, a Real Time Clock RTC DS 1307 is interfaced with a microcontroller and the time is displayed on a Dot matrix display. The circuit is simulated using the Proteus software. We shall discuss the project in two parts, one is interfacing the Dot matrix display and the other is interfacing the RTC DS 1307. Any RTC...
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