Daisy Chained MAX7219 Led Drivers

This project builds off of some work I did earlier with the MAX7219 led driver running a single 8X8 led matrix. Now I'm getting two of them daisy chained and driving 2 matrices. I'm moving the project off the breadboard and onto a perfboard, as well. This post has great instructions for wiring one driver and led matrix, which I've gone back to again and again.

One MAX7219 soldered and connected, running a random worm program. The second driver out in front isn't connected yet.