marco_c:
On the other hand if you want someone to do your work for you with your specific circuit, then you are not giving anyone enough information to do that.
What information do you still need? .. I posted the code, I'd like you to tell me how I could, for example, is the code for "take" what a person writes on the serial monitor and display it on the matrix ..
If you can write this little piece of code I would be very grateful