Σύστημα εμφάνισης μηνυμάτων σε πινακίδα LED

Abstract

The subject of the thesis is the design and construction message display system in LED sign. The system consists of a LED matrix 6 rows and 24 columns (24x6), which control the ardruino Uno Rev.3. The Ardruino Uno is a programming platform and control circuit based on the ATmega328 microcontroller which provides that needs the microcontroller and ac / dc adapter to provide power to the thesis. The ardruino provides connectivity to your / PC via USB and is based on programming platform in C / C ++, the application programming interface is written in java and based on avr-rcc open source programs. The LED matrix drive from circuit based on shift registers and a decimal counter. The circuit is controlled by the microcontroller board. It has the ability to display messages and cartoon characters defined by the microcontroller program.