2009•Machine Building & AutomationRequires access

Design of Multi-LED Display Based on PIC18F4520 MCU

MA Wan-tai

Abstract

LED display usually occupies the I/O ports of the single chip machine system,especially the multi-path LED display system,so there is a lot of limitation in application.In this paper,the method of dynamic scan is used to implement display on multi-path LED display and to improve the efficiency of I/O in single chip machine system.The multi-path LED display system designed with the method has the advantage of simple hardware structure,easy software programming and low price.

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Key concepts: LED display, Microcontroller, Computer hardware, Computer science, Path (computing), Embedded system, Software, Chip