Apple 2c+ serial midi out
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Published on ● Video Link: https://www.youtube.com/watch?v=Wreuc1OloCc
2c+ serial port sends 19200 baud bytes out via printer cable to 25 to 9 pin adapter to null modem adapter to gender changer to Arduino Serial Level Shifter shield (Linksprite SHD_RS232_V2_AA) to Arduino Mega. Sound card MIDI cable cut and 4 wires connected to Arduino.
DB15 +5v pin 1 to Arduino +5v
DB15 GND pin 4 to Arduino GND
DB15 MIDI OUT pin 12 to Arduino TX1
DB15 MIDI IN pin 15 to Arduino RX1 (not used in code).
All code that runs it is shown in the video.
Shield specs are here: https://www.linksprite.com/wiki/index.php?title=RS232_Shield_V2_for_Arduino
This code will also work on an Apple //c with the right cabling and adapters.
If your cable is a null modem cable, then do not use a null modem adapter.