Hitachi HD44780 LCD module For Display Hitachi HD44780 based character LCD modules are used. LCD interacing have many applications in microcontrollers based projects. The HD44780- based LCD unit can be operated in two modes, 8-bit and 4-bit mode. In 4-bit mode data is send using two four bit nibbles (First high four bits and then … Read more
Global system for mobile communication abbreviated as “GSM” is widely used because of its vast coverage. The GSM is the cellular norm of second developed generation in order to adapt to the delivery of vocal services and data that use the digital modulation. The big advantage of GSM is that it is flexible. Recommended Hardware … Read more
In this tutorial, we will discuss relays. At first, we will talk about their basic introduction. Then we will discuss their uses and basic applications. After this, we will provide a brief and concise introduction to the components that relays require for proper functioning and their operation or working method. At last, we will discuss … Read more
In this article you will learn, What is the best criterion to choose microcontroller for microcontroller based projects? How to choose microcontroller for specific applications based microcontroller projects? There are many types of microcontrollers available in market like 8-bit microcontroller, 16 bit microcontroller, 24 bit microcontroller and 32 bit microcontrollers. Four major companies microcontrollers are … Read more
A relay is an electromechanical switch that has many industrial applications to provide isolation between high-voltage and low-voltage circuits. These two circuits have different voltage ratings. One might be a low-voltage side and another a high-voltage side. A relay is an electrical mechanical switch that we use for switching between 5-volt circuits and 220/120-volt AC … Read more
Emf equation of a transformer: In this article you will learn how to derive EMF equation of transformer? How to drive turns ratio of transformer using emf equation of transformer. Let’s start with emf equation derivation of transformer. By using emf equation i will drive turns ratio of transformer. Let assume we have transformer which … Read more
How to control external devices remotely,In this article, I will tell you about how to control external devices remotely. There are many applications of remote control devices. Nobody wants to visit remote located fields. Because It is always difficult for someone to visit regularly to get data from remote locations. One of this most famous … Read more
Transformer parts, In this article I discussed about transformer parts. According to construction transformer consists of following parts. Steel tank Core Windings Conservator Breather Thermometer Pressure relief pipe Valves Buchholz relay Bushings Tap changing switch Oil gauge Radiator Cooling fans oil pumps Transformer insulation Recommended Books Books that cover this topic in more depth. Book … Read more
How transformer works ? It is a static device which convert electrical power from one circuit to another without making any change in frequency. It is used to step up and step down voltage in any circuit. If it step up the voltage, current will reduce. similarly if transformer step down the voltage in circuit, … Read more
Why transformers are used in power system?What is purpose of transformers in power system? How it are used to reduce line losses and voltage drops of lines? industrial developed countries have electrical transmission and distribution system which is used to transfer electrical energy from generating station to user end. The devices which used electrical power … Read more