Rei Yano wrote:what about two Mgbs? I already figure this is not possible.
hmmm it might be possible. not with just a standard midi gameboy and link cable, but it depends if the arduino just sends note data to the gameboy or if it expects something back from the gameboy.
if it just sends data you could again link as many gameboys as you want to MGB and play two different tones with the gameboys together, maybe cords
unless you are talking about pocket gameboys. if you mean you want to sync two pocket gameboys to midi with one arduinoboy, that would also be possible except the pockets don't seem to have enough power to drive the arduino so you would need an external power supply i think.
but as for doing things like having multiple midi thru sockets on an arduinoboy, and multiple link cables on an arduinoboy i have actually already made these for people and they seem to work so far, apart from multiple link cables need to have a master and slave link cables.
one other thing that might be possible, by editing the arduino code a little bit, you could have different channels going to different gameboys allowing maybe for cords using 3 gameboys? or maybe seperating the note data, i needs more investigation.