Seven Segment Display operation using Atmega32 and CD4511B Seven segment display is a frequently used device found in several applications such as queuing systems, some types of clocks and calculators. So in this article, we explain how to Interface a 7 Segment Display to the AVR Atmega32 MCU and get it working. Note: We have […]
In this article, we are going to interface the GY-521Â accelerometer with Arduino. The GY-521 has an InvenSense MPU6050 chip which contains a 3-axis accelerometer and a 3-axis gyro meter. This makes it a 6 DOF IMU (6 degrees of freedom inertial measurement unit). The chip also includes a 16-bit analog to digital converter on each
How to control DC motor speed using PWM on Atmega32 Using PWM (Pulse Width Modulation) to control a device is a common practice in embedded systems; for example, you can use it to control the light intensity of a LEDÂ or control the speed of a DC motor. In this article, we will explain how to
Technology and science have made homes (and workplaces) more comfortable and pleasant. People often overlook electricity as it is omnipresent to illuminate homes and operate appliances and gadgets. However, as beneficial electrical currents are to illuminate homes, workplaces, and streets, they can also cause severe injuries; and sometimes these injuries can be fatal. Injuries Due
Hi everyone, We are publishing a new Infographic in this post, featuring the Top 8 Countries with High Salary for Electronics Engineers. Our first Infographics was on the History of Electronics – which we published a few years back. We received a very good response for that infographic from our readers. However, owing to lack
Proteus software has a big and vast collection of Digital IC library. This software can be used as an IC selector in digital circuits designing. Circuit designers don’t need to waste time searching the availability of various IC’s for the application. This library provides information of the IC’s along with their commercial nomenclatures and manufacturer
In this article, we are going to interface a Pulse Sensor with Arduino. The pulse sensor we are going to use is a plug and play heart rate sensor. This sensor is quite easy to use and operate. Place your finger on top of the sensor and it will sense the heartbeat by measuring the change
In this article, we are going to read the colors using the TCS230 color sensor (RGB Sensor) and Arduino Uno. The TCS 230 color sensor senses the color light by using the photodiodes. The sensor converts the readings from the photodiode into a square wave by using the light to frequency converter. The frequency of these
In this article, we will explain how to communicate to an external EEPROM from the AVR Atmega32 MCU using the I2C communication protocol. So let’s begin our tutorial on how to interface an EEPROM (AT24C16A) with AVR Atmega32. You will usually need an external EEPROM when your system has a certain set of user configurable
In this article, we are going to interface a Soil moisture sensor FC-28 with Arduino. This sensor measures the volumetric content of water inside the soil and gives us the moisture level as output. The sensor is equipped with both analog and digital output, so it can be used in both analog and digital mode.
This chapter is part of our Proteus Tutorial series. In this chapter we explain circuit analysis using virtual instruments in Proteus.  Oscilloscope Proteus provides oscilloscope, which is a very essential instrument for analysis purpose. The Digital Storage Oscilloscope is featured as: 4-Channel input 2 MHz sampling frequency Invert option for each channel Relational output between channels
This project is a DIY Smart Light Adapter – which aims to build a smart light bulb based on your ordinary light bulb (which can be a CFL or an LED lamp) and a PIR sensor. The final output will be a light bulb that turns ON based on motion around a particular area within
Electrical connectors are used to join sections of a circuit. They play a crucial role in the overall working of an electrical component. Thousands of electrical connectors are available and each has its own unique features. They come in all sizes and shapes, from small IC to huge power connectors carrying high currents. With advancements
A “Drone” is basically an Unmanned Aerial Vehicle(UAV) Â – an aircraft without a human pilot aboard. In this article, we explore the different types of drones out there in the market – some of which are just concepts, while most others are already in action. “Drones” can be classified on a different basis – say
The Rigol 1102E oscilloscope is an exception when comparing the abundant features it provides for its economic price. This Rigol DSO model is one of the most selling product in its 100 MHz category and finds it vast application in research and development (R&D) wing, technical education, field engineering, electronics and electrical engineering laboratories, and
For electronics hobbyists, engineers and technicians, buying a new oscilloscope can be a bit of a challenge because the brand to choose from, and the specification each one of them provide, and when comparing the cost, is in abundance. So we have put together a form of perspective to guide you in choosing an oscilloscope.
A digital oscilloscope finds its vast use among engineering students and circuit enthusiasts. It is known to be one of the best and most able device to capture, analyze and study the salient features of electrical signals. Digital oscilloscopes also finds its use in motor vehicle testing, telecom engineering, vehicle ignition systems, and also medical
What is LCR Meter – an overview! LCR Meters are used to measure parameters of basic passive electronics components viz Resistor, Capacitor, and Inductor. LCR meters are available as desktop meters and handheld meters. Handheld meters are basically used for portability, use in the field and also by hobbyists to have a low-cost alternative with
DIY Automatic plant watering system This project is about a moisture-sensing automatic plant watering system using 8051 microcontroller. The system simply senses the moisture level and switches on the irrigation pump when the moisture is below the set limit. The system switches off the pump when the moisture rises above the set point. The moisture
myDevices – the company behind Cayenne – a drag and drop IoT project builder has announced its partnership with Arduino on August 9th 2016. With the partnership in place, Arduino’s large collection of open source boards are now accessible via the Cayenne visual editor. The importance of a visual IoT project builder is in acceleration
Oscilloscope An oscilloscope is a device that is used to measure time based varying signals and also to calibrate equipments to bring their standard value. Certain faults in electronic circuits can be identified and corrected with the help of oscilloscopes. Nowadays, many types of oscilloscopes are available in the market today. Since each type has
A GSM/GPRS Module is always needed to implement projects that involve SMS based or Web based controlling of devices. We have published lots of tutorials and projects using GSM and GPRS modules in CircuitsToday. This article is developed as a buyers guide for anyone interested in buying a GSM/GPRS module. There are a handful of
Programming ARM MCUs – What is Different? There are very, very few engineers or electronics enthusiasts who started programming with ARM microcontrollers right away. Most come to ARM looking for higher processing capabilities, with a background in simple 8-bit MCUs. In the previous article on How to Setup and Install the Development Environment for ARM
Arrangement of LED’s Consider an 8X8 matrix display, which means it contains 8 LED’s in each row and 8 such rows are used to form the matrix. Thus, it contains 64 LED’s (8*8).It is hardly practical to operate these 64 LED’s individually using any kind of digital circuits or microcontroller circuits. Hence, multiplexing is done
In this tutorial, we are going to build an LED Scroll Bar as shown in the image given below. The project is designed to flash Ten LED strips ( by giving different lighting patterns for each strip) with the help of a control board. We have created a simple GIF animation of the project to
