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This library is only for MAX7219.

the original version is for esp8266, I modified a little to adapt with esp32.

Just clone the code and copy it Arduino/libraries folder

Demo 5: How to use Arduino ESP32 to display information on SPI LED matrix http://www.iotsharing.com/2017/05/how-to-use-arduino-esp32-to-display-spi-led-matrix.html