YM2413 SYNTH + ROLAND XP50 - Testing sounds from the homemade OPLL mini FM synthesizer.

video upload by MusicHobby

"YM2413 SYNTH - Testing sounds from the homemade OPLL mini FM synthesizer. Roland XP50 keyboard used as controller, to send MIDI notes, program and control changes to the YM2413 module and the audio goes to the audio interface.

This is my project of a YM2413 FM Synth MIDI Module, already assbembled in a purple printed circuit board.

The YM2413 chip (known as OPLL), which is 2 operator FM musical synthesizer that uses FM synthesis (frequency modulation) to generate timbres. In this YM2413 based musical instrument I am using the Arduino Nano to control the YM's internal registers.

The YM2413 was used in:
-Yamaha PSS-170 and PSS-270 keyboards in 1986;
-Yamaha SHS-10 shoulder keyboard in 1987, and the Yamaha PSS-140 and Yamaha SHS-200 in 1988;
-Yamaha PSR-6 keyboard in 1988;
-Sega Master System, MSX, Atari Games Rampart arcade game;

I purchased the YM2413 chip on Aliexpress. I designed the board then sent the gerber to JLCPCB to be manufacured. Application Manual: https://www.smspower.org/maxim/Docume...

The intitial schematic of this board is here: https://www.dropbox.com/s/3n0dgba6pr6..."

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