5x7 Electronic Message Card
LED Matrix is one of the favorite devices for many people.
This tiny gadget is a very simple LED message card. We can display any messages on this LED, and reader can read them by pushing the button to scroll them. I designed and implement it as a present for my friends.
LEDs are dynamically driven by a micro computer, I use AT90S2313 provided by Atmel. The program written in it includes basic characters’ fonts and message body, and driver codes.
- This firmware is for AT90S2313 with 10Mhz osc.
- You can compile them with gcc-avr+avr-libc
- On Windows, it is known as WinAVR