Terrible documentation for Arduino
For OPL3 Duo!
The instructions for connecting the Arduino to the board are nowhere to be found. I tried adding the Arduino OPL2 Audio library and running HardwareTest.ino. No sound except a short tone while fumbling around moving wires and not repeatable. Tried to get something to compile on Orange pi 5 Armbian and no SPI device.
Response from Cheerful Electronic | Dec. 23, 2025
If you have a look at the link to the documentation you can find a section 'Connecting the OPL3 Duo!' that describes how to connect the board to various platforms such as Arduino and Raspberry Pi
