MD_MAX72xx LED Matrix Arduino Library  3.2.2
Library to control connected MAX72XX devices as a pixel array
Hardware

Supported Hardware

This library supports the Parola hardware and the more commonly available LED modules available from many other sources. The circuits for these modules are essentially identical except in the way that the LED matrix is wired to the MAX7219 IC. This difference is accounted for in software when the type of module is selected using the appropriate moduleType_t enumerated type.

Hardware supported

Connecting Multiple Modules

Separate modules are connected by the plugging them together edge to edge, with the OUT side of one module plugged to the IN side of the next. More details can be found at the end of each module's hardware section.