MAX7219 does not scroll (or do other things as expected)

[TomGeorge]

Hi.
I have the same 4 block matrix module on a UNO.
I ran your code just changed

#define CS_PIN 53

To;

#define CS_PIN 10

For the UNO pinouts.

I got the letter A scrolling right to left and sequentially as wanted.
I changed the symmetrical A to a E to check if the character was back to front and it is oriented correctly.

max777

Tom....