THE DESIGN AND CONSTRUCTION OF A MICROCONTROLLER BASED DOT MATRIX ADVERT DISPLAY
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Micro controller programmable Dot matrix information display system, is a system electronically designed and constructed, that is used to display different information to the view of the masses. The information to be displayed could be diagrams, symbols, letters, colors, numbers, codes, etc depending on what is needed at a particular place and time. This without doubt, has made life easier for the people in different ways; however micro-controller, which is the heart of this system, can be described thus: A micro controller is a computer. All computers, whether we are talking about a personal desktop computer you are using is a general – purpose computer that can run any of thousands of programs. Micron-controllers are special purpose computers. Micro controllers do one thing well. There are a number of other common characteristics that define micro controllers. If a computer matches a majority of these characteristics, then you can call it a micro controller, Micro controllers are embedded inside some other device (often a consumer product) so that they can control the features or actions of the product. Another name for a micro controller, therefore, is embedded controller
Micro controllers are dedicated to one task and run one specific program. The program is stored in ROM (read – only memory) and generally does not change. Micro controllers are often low power devices. A desktop computer is almost always plugged into a wall socket and mighty consumes 50 watts of electricity. A battery-operated micro controller might consume 50 milliwatts.
A micro controller has a dedicated input device and often (but not always) has a small LED or LCD display for output. A micro controller also takes input from the device it is controlling and controls the device. Meanwhile the use of a micro-controller to implement an electronic display system design made up of LEDs connected in common cathode matrix form is referred to as micro-controller based programmable dot matrix information display system. This project design is a welcome compliment that displays ‘UNIVERSITY CAFETERIA’
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