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March 24, 2015

Embedded System - Back to basics

by Anonymous  |  in Embedded Systems at  8:36 PM

What is an embedded system ?   
An embedded system is a combination of software and hardware. It is strictly application specific in nature. It comprises of a microprocessor (MPU) with memory or a microcontroller (MCU)(brain of embedded system) in which a program is burnt in its flash memory to serve a particular task. This microcontroller is programmed according to the user’s requirement and can be used in so many situations like designing of simple larms, alerts,  and lightings in home automation systems. Also there is a feature of rewriting the program, as the program feed earlier can be erased and a new program can be burnt in the MCU. An embedded system also uses some sensors which are technically the transducers. These transducers can sense the signal or information and send to MCU and then MCU decides what to do. Embedded system  uses motors, actuators, lcds, leds, switches, pcbs etc. There are several examples of embedded systems as given above. From digital clock to your own laptop, all we use is embedded systems. Motors are used to give motion to our embedded system i.e, a mobile embedded system can be created using a set of motors. A motor sensor assembly can be used to calculate the rpm count of the motor. LCDs and LEDs are used to display important information which plays an important role in interaction which provides our embedded system a user friendly environment. Switches or push buttons are used to work with or to command the embedded system. All these push buttons, microcontroller, lcds, leds are assembled, and connected on a printed circuit board to give the final embedded system.

This is a simple brief intro about embedded systems.

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