Electronics world

1. INTRODUCTION We use many different types of communication in control applications to control home appliances, industrial appliances, and other type of automation. There are two types of communication that is we generally use - one is wired and other one is wireless. In wireless communication we transmit signal wirelessly, like using radio frequency (RF) and in wired communication in which we use wires like copper wire. In this project “DTMF Based Home Automation System” we are going to control our home appliances wirelessly. Other important feature of this project is, that we are not going to use any microcontroller in it. . The remote control used in home automation systems, is a wonderful feature that everyone would like to enjoy, if they were not expensive to install, maintain, and able to be use from long distance. With such automation one can switch ON and OFF lights, Ac etc. from a remote distance. In our project we have tried to implement this home automation technique u

What is a Programmable Logic Controller, or PLC? If you’ve used a computer, and you’ve used an Arduino, Raspberry Pi, or any number of other microcontrollers, you might think that a computer based on the physical world is a relatively new concept. A digital input causes some sort of conditional logic to make something blink, your robot to move, a signal to be transmitted, or any number of other things. This type of logic has, in fact, been going on for quite some time in industry. In 1968, a man named Richard E. Morley proposed the Modular Digital Controller (MODICON) to a car manufacturer. This MODICON, or programmable logic controller (PLC), was used to replace complicated relays with virtual programmable relays, making machinery changes in industry much, much faster. This later became the commercial MODICON 084, which led to many more manufacturers making their own version. Here’s an article on the  history of the PLC  if you’d like more background. How do You Progra

Embedded systems are a cornerstone of the electronics industry today. An embedded system is a computer or processor based system that has been designed for a specific purpose. The system gains its name from the fact that the software is embedded into it for a particular application. The embedded system is not like a PC or other computer that can run a variety of programmes and fulfil a whole host of tasks. The item using an embedded system is designed for a specific task and has its software preloaded, although updates may be undertaken from time to time. Embedded systems basics It may be asked what is an embedded system. With many processor based systems and computers it is useful to define what an embedded system is. A convenient definition for an embedded system is: An embedded system is any computer system contained within a product that is not described as a computer. Using this embedded system definition it is possible to understand the various basic characteristics