Alright, I know double posting is usually frowned upon in forums (in this case quadruple posting), but this board moves slow enough that I figure it's OK.
Anyways, the video I posted is really worthless, so hopefully these pics will help.
http://www.imagebanana.com/view/zc0zznk2/DSCN1876.JPG
http://www.imagebanana.com/code/ehpbw3va/DSCN1872.JPG
http://www.imagebanana.com/view/zf4gk4be/DSCN1873.JPG
Won't let me embed the pics with the tags
So this morning I took everything apart and put it back together again. No mode cycling this time, but still no button response. I've tried wiring pin 3 straight to the SPST button and the SPST button to ground, taking out the 2k resistor, and the button will then shut off/on the gameboy itself; don't know if that's useful information.
And here I thought that the hardest part to get going would be the midi connections themselves, unless it still is the hardest part, in which case it's not very reassuring!
UPDATE: I've tried bypassing the whole button select mode and force start the arduinoboy into mGB mode. I set forcemode to 4 and put alwaysUseDefaultSettings = true. My akai mpk25 is outputting midi but no sound from mGB....
UPDATE2: I've checked the actual DIN plug with my continuity option on my volt-ohmeter along with all the pins of the optoisolator. Everything checks out. I've made sure my akaiMPK25 is outputting midi data on channel 1. Still nothing.
I've tried force starting mode 4 and 5 because i'm not sure which one is mGB. In mode 4, the 6th LED lights up. In mode 5, the first 3 LEDs light up. In all cases the LEDs don't stay lit up.
I don't know what I should do with pin 3 since i'm force starting to mGB. I've tried taking out the switch but leaving the rest of the connections in tact. I've tried putting pin 3 straight to ground; and through the 2k resistor to ground. I've also tried taking off pin 3 completely. Still nothing.
I guess my only option is to buy a new 6n138 and hope to god that works. Any help appreciated, or at least any acknowledgment that I exist in this thread will help too. In retrospect I probably should have just started my own thread. Actually, if a new 6n138 doesn't work I may just start my own thread.
Also: It's not shown in the picture, but i've added the 4.7k resistor suggested by nitro2k01
Last edited by Slumpy (Jun 8, 2012 10:25 pm)