Description:
Bright LEDs are cheap today. So many new projects with large amount of LEDs can be done. But there is one problem - large amount of LEDs consume large amount of energy. This is a project that implements special technique that allows driving efficiently hundreds of LEDs. This is a large PCB where 25×25 […]
Description:
It can be used for PC modding or elsewhere where scrolling text effects are needed. Display is built of 50×7 LEDs that is controlled by AVR microcontroller. Text can be sent from computer via RS232 port or displayed from external EEPROM 2k memory where 768 characters can be stored. Fonts set of 256 different characters […]
Description:
This project explains how to text scroll over a DOT Matrix Led display. Dot matrix consists of 5*7 Led dots in one case.
Micro controller:
AT90S2313 / ATtiny2313
For more details click:
http://www.attiny.com/dotmatrix.htm