This shield is the following of this project but I created a new repo since the board is different, wiring also and even the library used to drive Matrix.

This board is used to simplify ESP32 connectivity with a nice matric RGB led. This idea came from excellent project called Morphing Digital Clock done by HariFun Instructable. But with this library and current code I got some issues with mutitasking, and using same time the awesome Async libraries (Web Server and MQTT) getting very ofther in reboot and board reset. I don't blame anyone, the library used was just to drive matrix, it's always complicated mixing some libraries sometimes especially ones with hardware intensive related suff, IRQ's and TCP.

This was until @mrfaptastic released the DMA version wich is far less CPU intensive. I tested this one with Async Web Server, Async MQTT and OTA without any issue. You can participate to the @vortigont started discussion here Thanks to github for this new feature.