ELECTROCARIAN

   INTRODUCTION             This section begins with a discussion of the role and importance of Microcontroller in everyday life. Microcontrollers are not well known to the general public, or too many in the technical community, as are the glamorous microprocessor. However we are very well aware that “something” is responsible for all of the smart VCRs, clock radios, video games, Telephones, TVs, automobiles, Mobile phones, camcorder, security systems, instrumentation, printers and a myriad of other articles that are intelligent and “programmable”. These all things are due to a smart “Microcontroller”. Microcontrollers are widely used devices in embedded system. An embedded system product using Microcontroller has one and only one task. In such systems there is only one application software that is typically burned into ROM. One Such system is our 89c51 Microcontroller based Trainer kit in which controller is its heart. For our trainer Kit, we have chosen 89c51 microcontroller which i