http://f4hla.free.fr/
I created for the last saint Valentin a little board that draw a animation of heart on a 6*6 LEDs matrix.
First of all, here are schematics and photographies of my work.
The program written in assembly code is available [THERE]...Don't hesitate to join me for any further question.
[HERE] is the hex file (compiled version)...
Enjoy...and nice Valentine day!