Finally the redesigned MIDIbox Plus PCB and the appendant firmware can be downloaded from the “MIDIbox Plus->Design” page. For users who want to upgrade their existing box (it makes sense if you noticed performance problems with the integrated MIDI merger): just add an additional connection between Pin #23 of the PIC and the R/W input of your LCD and burn the new firmware into your PIC. People who don’t use a display should upgrade, too - they don’t have to take care about the hardware mod.
Best Regards, Thorsten.
P.S.: Mike will sell this PCB for just 6 Euros in the next days
i had no problems with my current midibox 16 firmware… if i upgrade to next version i have to change the hardware connections like you said, i suppose?
since your MIDI In is working, you don’t need to exchange the CNY17-II by a 6N138. Only the additional line to the LCD is required. And the new firmware of course. Maybe you will notice a better performance with your breath controller, since LCD accesses don’t slow down the ADC driver anymore.