mostly teensy 4.1
-display text and execute commands based on text file on SD, see documentation
-display .ppm images stored on SD
-several macros (background color, text color, fades, glitter ...)
-midi implementation see documentation
use ext lib:
#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>
#include <SD.h>
#include <SPI.h>
#include <MIDI.h>