Abstract
In presented project they have been going to design an 8x8 LED matrix display, for that they have been going to interface an 8x8 LED matrix module with AVR microcomputer. An 8x8 LED matrix contains 64 LEDs which are arranged in the form of a matrix MODULE with chip MAX7219. Regarding circuit diagram and explanation, the connections which are done between AVR microcomputer and LED matrix module are, LOAD, CLOCK, DATAIN, +5V and 0V of LED module, respectivly. The aim of presented study is product only in tiny memory and affordable rate microcomputer, to build automatic cord generation system assisted for display Japanese kanji character. It has been a subject of research, both for their self-study affordable learning material and for their technological applications in electronics through to computer engineering. Especially in academic region, compatible Arduino board is easy and popular to programming something theme with assisted study tool for microcomputer embedded system understanding. On the other hand, it is difficult to do the modification truly original cost free display Japanese kanji character system without on a major scale PC communicated and controlled continuously. All over kind of Japanese character display system is best way to propaganda tool for new comer invitation and attraction for any kind of instant gadget, additionaly using bluetooth, using wireless RS232C serial UART as the controller boards around the following features, always keeping as a system that can be remotely controlled. At a speed of 9600 bps bit time and connect external PC or smart phone, and wireless remote operation is feasible, Serial Port Profile SPP to standard support using non-synchronous serial UART bluetooth classic standards, meanwhile BLE communication is not adopted.
