Hacking the M5Stack MIDI module (SAM2695)

The SAM2695 is a powerful General MIDI chip, but is tricky to use due to it's small format. The M5Stack MIDI synth module gives an economical way to utilise it, but needs a little hacking to get an external audio output. M5Stack MIDI: https://docs.m5stack.com/en/unit/Unit-Synth SAM2695 datasheet: https://docs.dream.fr/pdf/Serie2000/SAM_Datasheets/SAM2695.pdf