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ABSTRACT
The aim of this paper is to design a textual display system, based on a light emitting diode (LED) dot matrix array powered by 15 volt power supply. This project involves taking the device from an initial concept, through a design phase, to constructing a prototype of the product. The system consists of the display unit. The self-contained nature of the intended design will allow the display to be mounted almost anywhere it is needed. This display unit is useful for creating attention-getting messages, location identifiers such as maps and address identification display modules. The implementation of a moving message display panel which displays a text that can be program and reprogram. The control of this panel is based on an Atmega 89S52 Microcontroller. The used Atmel Microcontroller is programmed using Assembly language, through using AVR studio software and STK500 kit. The advantages of the designed display system is easy to set up, program and handle, it also allows the outlet to simply and clearly present the scrolled text. Finally, it is found that the designed system is suited to be used for many other applications.
