I did missed that link. Thanks for pointing me out. Actually, the RTC I have available right now for this project is the DS1307 which from your experience is not the best one for this kind of project. I'll change it...
Another thing that I will have to work is the Font. I need to add some "special" characters like ç, é, í, etc... From my understanding, I need to add their "design" to the Fonts you already included, in the first place. After this, is there anything else that I need to change to be able to use them in a scrolling message?
Still regarding the Fonts, can you explain to me what's the meaning of the last digit/couple of digits defined after each character? e.g.:
B11001100, B00000000, //" B11001100, B00000000, B11001100, B00000000, B00000000, B00000000, B00000000, B00000000, B00000000, B00000000, B00000000, B00000000, 8, B00110011, B00000000, //# B00110011, B00000000, B11111111, B11000000, B00110011, B00000000, B11111111, B11000000, B00110011, B00000000, B00110011, B00000000, 12,
I am referring, in this example to the 8 and 12 in the last line of each character. Other characters have different codes.
Once more, thank you for all your help. When I get something that worth to show, I'll post some pictures.