Displaying Moving Message On Notice Board Using PC

Introduction

[nextpage title=”Introduction” ]The system is designed to display a scrolling text message on an electronic notice board using a PC to control it. This can be used in various facilities like schools, colleges, stadium, company, and factory, institutes in order to display notices, events or other alerts using a PC to control it.
Well notice boards are usually used to pin news, events and other data to be displayed from time to time. It has an important feature, that it can be updated when needed. The same functionality is provided by an electronic notice board. The pc is used as a controlling device for txt to be displayed on the notice board.
The system has great advantage over traditional notice boards. It can so be implemented at a variety of places including, banks, offices, training places, colleges, institutes, railway, bus and many more areas. It makes message display very easy and convenient process.
The message data sent from a pc is converted and fed to a microcontroller of 8051 family going through a Max232 interfacing IC. Data needed is stored in a microcontroller interfaced with external memory. After that an LCD screen used to demonstrate as a notice board is interfaced with the microcontroller to display the message sent through the PC as a scrolling text.[/nextpage]

Hardware and Software Specification

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Hardware Specifications

• DC Motor
• Micro controller unit [8051 Family]
• Transformer
• Diodes
• Regulator
• LCD (16×2)

Software Specifications

• Keil µVision IDE
• MC Programming Language: Embedded C

DC Motor

Electric motors are everywhere around us. Almost all the electro-mechanical movements we see around us are caused either by an A.C. or a DC motor. Here we will be exploring this kind of motors. This is a device that converts DC electrical energy to a mechanical energy.

Transformer

A transformer is a static machine used for transforming power from one circuit to another without changing frequency. This is a very basic definition of transformer.

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Block Diagram[nextpage title=”Block Diagram” ]

Result

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