Control a LED sign with an arduino

Projects General Guidance
1

Hi Everybody.
I am planning to start learning the Arduino devices.
My project is to control text to a LED Sign ( Matrix) with an Arduino, which will send a text by activating a switch. I do not want to have the LED sign connected to a computer, in this case I do not know what kind of Arduino es the right one. One that can save some texts
message and activated a message to the LED sign depending what switch is On.
I will appreciated any guidance with this.

Regards
Antonio

2

My project is to control text to a LED Sign ( Matrix)

Which one?

which will send a text by activating a switch.

It's easy to read the switch state, and change what the matrix is showing/scrolling.

One that can save some texts message

How many? How large? From where?

3

Uno and some MAX7219s controlling 8x8 matrixes are an easy way to make a sign.

This was before I sped up the scrolling, just testing code.
If you search the forum for "parola" or "parolo" I think, one of the members has working up a library or similar to control a lot of max7219/8x8 displays.