Blog
12 May 2008
Based on micro PIC18F4320, this circuit makes possible to realize a small MIDI expander using an old ISA-BUS soundcard. Tested on 2 different cards, it should work for any card ADLIB OPL3 compatible (the I/O address MUST be 0×388). The software (in this first release) responds to MIDI commands on Channel 1.
MIDI expander with old ISA-BUS soundcard - [Link]
