Implementation of Different Types of Patterns using Propeller Display through Microcontroller

Abstract

In this application we have implemented a special kind of circular LED display. With the help some mechanical assembly, LED count, hardware requirement, and hence overall cost is cut to very affordable price. Also, maintenance and repairing of the display is so easy, that anyone having electronics knowledge can take care of this. All the synchronizing can be implemented through software. This application uses the principle of PERSISTENCE OF VISION (POV). A glowing object if rotated in a circle at fast speed, it shows a continuous circle. By modifying this basic idea, 8 LEDs can be rotated in a circle, showing 8 concentric circles. This propeller display is mechanically scanned and displays the characters in digital format. Made from scrap it can be used anywhere and everywhere and the most amazing fact about this display is its crystal clear display. This display consists of just 8 bright LEDs which are rotated to show the display.