The first part concluded with the YM2413 hardware and an amplifier on a test Arduino Uno shield. In this and the next part we explore the interface to the device and how to control the hardware to make music.
When researching material for the SN76489 sound generator (documented in these previous articles) I discovered that many early microcomputer systems incorporated both the SN76489 and a YM2413 FM synthesizer. The Yamaha synthesizer looked like an interesting piece of hardware to explore. Here’s the result.