I want to assembly a simple led matrix which will run a text string.
I would like to be able to store (and call) up to 99 different text strings.
A simple 4 x 4 keyboard would be used as command panel.
So when I type, for example No 12, text string No 12 would run on the board unit until I type new two digit number.
Is it possible to make it work with these components? (I do have many different power supplies and connection cables)
Do I need more components?
Is there more simple way to do it?
Look at the parola library for driving multiple LED matrixes with a MAX7219 for each 8x8 display.
Daisy chain the MAX7219's together. The library supports many configurations.