In this guide, we’re learning how to interface LCD to Arduino and display text characters on LCD screen. We’re interfacing 16×2 LCD to Arduino as a demonstration with circuit and code. Let’s begin. A Liquid Crystal Display commonly abbreviated as LCD is basically a display unit built using Liquid Crystal technology. When we build real […]
PWM motor speed control using Arduino. PWM or pulse width modulation is a very common method used for controlling the power across devices like motor, light etc. In PWM method the power across the load  is controlled by varying the duty cycle of the drive signal. More the duty cycle more power is delivered across
Simple digital code lock using arduino. Digital code lock or digital combination lock are a type of  digital locks where a combination of digits/characters or both are used for unlocking the lock. This article is about a simple digital code lock using arduino. Here the code consists of a combination of  digits from 1 to
Interfacing hex keypad to arduino uno. This article is about how to interface a hex keypad to arduino. Hex keypad is a very important component in embedded systems and the typical applications are code locks, calculators, automation systems or simply any thing that requires a character or numeric input. This project will display the pressed
Digital thermometer using arduino and LM35. This article is about a simple three digit digital thermometer using arduino. Range of this thermometer is from 0°C to 99.9°C. There is also a provision for displaying the temperature in °F scale. Three terminal analog temperature sensor LM35 is used as the sensor here. LM35 can measure temperatures
Simple temperature logger using arduino (°C & °F). This project is about a simple USB temperature logging system using arduino uno and the serial monitor function in the arduino IDE. The system monitors the temperature every 2 seconds and shows it on the arduino serial monitor. The temperature is shown in °Celsius  and °Fahrenheit. The system is interfaced
Ultrasonic range finder using arduino. Ultrasonic range finder using 8051 mictrocontroller has been already published by me in this website. This time it is an ultrasonic range finder using arduino. HC-SR04 ultrasonic range finder module is used as the sensor here. The display consists of a three digit multiplexed seven segment display. This range finder
0-5V voltmeter using arduino. This article is about a simple 3 digit voltmeter using arduino. The circuit can measure anything between 0 to 5V at an accuracy of 50mV. The circuit uses minimum number of external components and can be easily modified for different voltage ranges. The display device is a common anode multiplexed seven
In this article we explain how to do PWM (Pulse Width Modulation) control using arduino. If you are new to electronics, we have a detailed article explaining pulse width modulation. We have explained PWM in this tutorial using 2 examples which will help you learn how to control LED brightness using PWM and how to
We have listed many free and paid PCB drawing software’s and simulation tools before. In this article, we are reviewing an online web based PCB schematic and simulation tool named EasyEDA. We have explained how to begin with the tool and in the process of explanation, we have shown how to draw the schematic of our
In this arduino project, we are detailing a line follower robot using arduino, a couple of LDR sensor pair, and two motors. A line follower robot is a very basic project to start with, when you are learning a new micro controller like 8051 or AVR or PIC. Line Follower Robot using Arduino – DIY
This article is another step forward in learning more about Arduino. Â In our previous article, I have written in detail about blinking an LED using Arduino. We have demonstrated 5 simple led based projects using arduino, which will help you to learn its basic concepts. 1. Blinking Two LED’s using arduino 2. Control LED using
There are many who are trying to advance in the field of microcontrollers, and the best way to do this is by understanding the basics of PIC (Programmable Interface Controller). This microcontroller is known for its wide application in modern electronics. Especially, when such a microcontroller is known to integrate all types of advanced interfacing
When we learn a new programming language in computer science (say C, PHP or Java), we begin the learning curve with the classic “Hello World” program. Â We learn some essential keywords used in the programming language, then we learn the structure of the language and finally we begin to play with the language by making
It was in the year 2005 that the first ever Arduino board was born in the classrooms of the Interactive Design Institute in Ivrea, Italy. Well, if you are not very familiar with the term, an Arduino is an Open Source microcontroller based development board  that has opened the doors of electronics to a number
In this article, we explain the basics surrounding arduino. As the title indicates, this article is for absolute beginners in the world of electronics and for people who are beginning with arduino boards. Arduino is an electronics prototyping platform based on a micro controller. Arduino boards are usually made using Atmel’s Atmega series micro controllers
Arduino has now become a strong platform for creating and developing various open-source hobbyist electronic projects. Its relative ease of use, versatility, and the unbeatable price have all made Arduino into the prototyping board of choice for many home-brew electronic enthusiasts worldwide. In this article, we review 4 of the best arduino project books available
A look into the electronic circuit board mostly shows wires with colorful bands, called resistors. These color bands indicate the values of those resistors like the identity card does for us. With these color bands, we can identify the resistive value and its percentage tolerance of a resistor. For large power resistors, the resistor body
In this article, we provide you review of 3 popular books that can provide you good knowledge in Arduino platform. These books give all the basics needed in electronics as well as programming. Simple as well as complicated projects are also provided with detailed explanation and codes so that the reader can get some application
We have been working on an online application to calculate resistor color codes for the past 2 weeks. If you were subscribed to our Facebook Feed, you might already have tried the tool. We got really good feedback about the tool from people who have tried it. If you have not tried the tool yet,
Power electronics is the most classified field in electronics where the switching process in power supplies, power converters, inverters, and motor drivers are carried out. A wide application of different electronic components like Diodes, Transistors, MOSFET’s, Thyristors, SCR, GTO, and many more are used. CircuitsToday has provided a lot of valuable contents to get a
From laptops to mobiles and cars to kitchen appliances, human efforts have been significantly reduced by the introduction of digital devices. As a student, it is essential for all of us to know the basics of digital electronics. CircuitsToday has provided a list of 4 very good books in this subject. It is being used
Line follower robot using 8051 Line follower robots were one of the earliest automatic guided robots. They are able to follow a line marked on a contrasting background, usually a black line on a white surface or a white line on a black surface. Usually, the line follower robot works on a closed loop feedback
Popularly called the “idiot box,†the television has become a vital part of our lives. Can you remember the days when there wasn’t a television set at your home? But, when and how was the television invented? Who was the brain behind this magnificent invention? Well, the history of invention of the television can be
Without the application of barcodes, sales at stores would have been a very tedious process. The bar codes help a lot in effectively keeping an eye over the sold out items in a store. The brain behind the invention of barcodes should certainly be a ‘business’ mind. Well let us have a peep into the
