Electronic Circuits and Diagram-Electronics Projects and Design

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 control DC motor speed using PWM. PWM control using arduino. PWM control is a very commonly used method for controlling the power across loads. This method is very easy to implement and has high efficiency. PWM signal is essentially a high frequency square wave (…

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 popular circuit of 150 Watt Amplifier. So lets begin. EasyEDA is a free web based EDA tool suite, integrating schematic capture, mixed-mode circuit simulation and PCB layout in a seamless on Windows/Mac/Linux web browser(Chrome, IE9+, Safari, Firefox, and Opera).This article is intended to give an overview of…

A line follower robot using 8051 microcontroller is already published here and this time the same thing is done using  arduino. This line follower robot is basically designed to follow a black line on a white surface. Any way the same project can be used to follow the opposite configuration with appropriate changes in the software. The entire hardware of this simple line follower robot using arduino can be divided into three parts. The sensor, arduino board and the motor driver circuit. Lets have a look at the sensor first. Sensor. The sensor consists of two LED/LDR pairs with appropriate…

This article is another step forward in learning more about Arduino.  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 a Push button switch 3. Toggle an LED using Push button switch 4. Toggle 2 LED’s using a Push button switch   1. Blinking Two LED’s using Arduino As a beginner, if you have tried the “Hello World” program to blink an LED using Arduino;…

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 ports and memory modules. CircuitsToday is listing some books that will help our readers to get a better understanding of the basics of PIC, and also some basic projects based on PIC. PIC Books Review Please note that the prices vary according to the place…

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.  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 display the two words “hello world” in our computer screen. So that’s how we begin to learn a programming language used to build computer applications. Our world of embedded systems is a little different. We create software to control hardware. In our world, we…

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 of designers and creative engineers. It was in the Interactive Design Institute that a hardware thesis was contributed for a wiring design by a Colombian student named Hernando Barragan. The title of the thesis was “Arduino–La rivoluzione dell’open hardware” (“Arduino – The Revolution of Open…

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 or ARM micro controllers. Arduino is an open source hardware project which means the designs of board (the hardware architecture, CAD files) are available to public with open source license. Anyone can modify the hardware designs and the associated software. What you can do with…

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 till date. We have already listed 4 books to learn the basics of Arduino. If you are looking out for a practical and a little more advanced approach to Arduino we suggest you to read any or all of the books we have reviewed below….

“Color coding” is used in electronics to identify between different components. In the case of resistors, color coding is used to identify a specific resistance value, for example a 100 ohms resistor or a 1 kilo ohms resistor with 5% tolerance. Electronic components like resistors are very small in size and its difficult to print its value directly on to the component surface. Hence a standard was formed in 1920 by then Radio Manufacturers Association (now part of EIA – Electronic Industries Alliance) to identify values and ratings of electronic components by printing color codes on them.  Color coding technique…