Found 1006 Articles for Electronics & Electrical

What is a Decoder? In digital electronics, a combinational logic circuit that converts an N-bit binary input code into M output channels in such a way that only one output channel is activated for each one of the possible combinations of inputs is known as a decoder. In other words, a combinational logic circuit which converts N input lines into a maximum of 2N output lines is called a decoder. Therefore, a decoder is a combination logic circuit that is capable of identifying or detecting a particular code. The operation that a decoder performs is referred to as decoding. A ... Read More

In digital electronics and digital systems such as digital computers, calculator, etc., the binary numbers and their arithmetic operations play a vital role. Just like the decimal number system, we can perform all the four basic arithmetic operations, i.e. addition, subtraction, multiplication, and division of binary numbers as well. Read this article to learn how you can add two n-bit binary numbers. What is Binary Addition? Binary addition is a basic arithmetic operation performed on binary numbers in which two binary number of any digit are added to obtain a sum. As we know, a binary number system has base ... Read More

Dielectric testing and insulation testing are two essential electrical tests used to determine the quality and reliability of electrical equipment. These tests are performed to ensure that the electrical equipment is safe and free from any defects that may cause short circuits, fires, or other electrical hazards. Although both tests are related to insulation, they have significant differences in terms of their purpose, procedure, and results. What is Dielectric Test? Dielectric testing involves measuring the electrical breakdown voltage of insulation materials. It is performed to determine the maximum voltage that can be applied to the insulation without causing it to ... Read More

Groundhogs and beavers are two types of animals that are commonly found in North America. Although they share some similarities, they are distinct creatures with unique characteristics that set them apart. In this essay, we will explore the key differences between groundhogs and beavers, including their physical characteristics, habitats, behaviors, and roles in the ecosystem. What is Dielectric Constant? Dielectric constant, also known as relative permittivity, is a measure of how much a material can store electrical energy in an electric field. It is defined as the ratio of the permittivity of a substance to the permittivity of free space. ... Read More

For IoT projects, we need to use a microcontroller. ESP32 is one such microcontroller that can be used to start learning IOT and making IOT circuits. It is therefore important to learn about its pins layout and also what is the purpose of each pin and how it can be used. In this article, first, the layout of pins available in ESP32 Wroom 30-pin microcontroller is specified. Then the different types of pins that are available in ESP32 are described. ESP32 is used for a variety of applications including the use of wifi, transmitters, and receiver devices, Serial Peripheral Interfaces, ... Read More

ESP32 microcontroller can connect to the internet and use the wifi. It can be used to see the network details of the available networks. It can also be used for advanced functions such as changing the MAC address of ESP32. In this article, using three different examples, the programs using the wifi with ESP32 are given. In example 1, a C program is used to scan the wifi networks available and the details are displayed. In example 2, the wifi connection is established by giving the SSID details, and in example 3, the current Mac address of ESP32 is seen ... Read More

NoSql databases are those databases that do not store the data as data is stored in relational databases. Most of the data that is used in real life is often unstructured. These NoSQL databases provide an easy way to store this unstructured data by using key-value pairs. In this article, a NoSQL database called Firebase is used with a C program that controls the IOT circuit. The article presents the writing of the values to the firebase and getting the values from the firebase in real time and using those for controlling the circuit components. Connecting the Firebase, Wifi, C ... Read More

IOT ie. The Internet of Things refers to all those devices that can communicate over the Internet and can be made accessible or connectable by anybody and from anywhere in the world. IoT is already being used or has been seen implemented in different forms such as in Smart cars and watches, Smart homes, Smart irrigation systems, Smart cities, etc. To start learning IOT, first, it is important to learn about the things that are needed to make circuits. There are some simulators available to make the beginner of IOT learn these concepts without even having the IOT devices available. ... Read More

DHT11 and DHT22 sensors are sensors that can be attached to a microcontroller on a breadboard and can measure the humidity and temperature of a place. The differences between these sensors are that DHT22 is more expensive, has better temperature reading ranges, and is more accurate. These sensors can be connected to microcontrollers such as ESP32 or Arduino and can be used by programs to read the values. In this article, using two different examples, the use of DHT11 and DHT22 Sensors is demonstrated using ESP32. The circuit is made using ESP32 microcontroller and DHT sensors in actual and on ... Read More

Adafruit.io is needed to display the IOT project’s data online in real-time. It is a cloud server that can be used to connect to IoT devices through wifi and to control these devices through a dashboard. It can be used as a free service and it has got a simple easy-to-use interface to design dashboards. The key for authentication can be generated directly from the user’s account and can be included in the program to connect the IOT components to the respective dashboard. The feeds are important to make connections, using the program that connects the IOT circuit to the ... Read More