ZK12 redesigned his MIDIbox Plus case (it’s an old computer keyboard) - although the PIC is running with a very old firmware version (v1.004, this release is older than 4 years), it works fine 
ZK12 redesigned his MIDIbox Plus case (it’s an old computer keyboard) - although the PIC is running with a very old firmware version (v1.004, this release is older than 4 years), it works fine