Make a LED Matrix Box With Multiple Effects

The use of LED Matrix Max7219 is quite common nowadays. You can use it for many different applications such as: Clocks, Scrolling Text, advertising...

However, the sample code related to Max7219 I found relatively difficult for newbies, so I tried to rewrite the code as concise, understandable and clean as possible!

*** List parts ***
- Arduino Nano:

https://www.banggood.com/custlink/3GvEL7wuVK

- Max7219:

https://www.banggood.com/custlink/KKDyBEz7Ll

- Wires:

https://www.banggood.com/custlink/G3GheEq7ob

- 3D Box *STL files:

https://www.thingiverse.com/thing:4921937

I designed a box using Fusion 360 software

Using Ultimaker Cura software to export from *.STL files to *.GCode files

Wiring following diagram above

* I'm using "MD_Parola" library, download it here:

https://github.com/MajicDesigns/MD_Parola

Upload program and test it

* Download source code bellow

* Read more here: https://goldscrew.blogspot.com/2021/08/make-led-matrix-box-with-multiple.html

Thanks!