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Well again, the voices are channels 1-4. So 16 isn't going to do anything. And if you're not getting any flashes or sound that's not a great sign. Do you have a controller with a midi din jack so you don't have to control the arduinoboy with midi over usb?

I meant that I only use the arduinoboy to interface between a keyboard and a Gameboy. That's not the only way I use Gameboys.

You'll have a much easier time troubleshooting with mGB. LSDJ has to be setup very specifically for being midi controlled.

I can't tell from the video but if you're supplying the cable that goes between the arduinoboy and the Gameboy, you need to make sure that all the pins are connected. Most link cables have some of the pins not connected or missing altogether.

In mGB mode, there should be an LED that is triggered whenever you hit a key on your midi controller. If that isn't happening, double check that you're in the right mode.

Set your midi controller to midi channel 1. The four voices in mGB are channels 1-4 so if you're outside of that group, it probably won't do anything.

Ha! I totally forgot that the nes controller jack only has like 6 pins. So yeah, you'd be gutting the advantage and making a new board with each button connected to it's own wire out of the cord.

You really are going to need a meter though. Even if someone has/finds info about that ribbon, you need to check it. Otherwise you're setting yourself up for some heartbreak at the end of your project.

Kitsch, can you clear something up for me? The description for the DMG button sets says that a power switch isn't included but the neon green set (pictured) includes one.

Do you get a power switch with your DMG buttons?

The problem is that the two ends of the caliper (while tapered) don't disappear when you have it set at zero. I couldn't get them inside the barrel. And to make the operation a bit more difficult, there is a taper to the inside of the barrel so even if you manage to get the tiniest bit of the tip inside, you're measuring some point along that taper.

Again, if this isn't information that people have, I'll conduct my own investigation. I mean I think it would be pretty useful. Everyone could buy the cheapest 6v (or 5v) wall wart from digikey instead of being limited to Gameboy branded stuff.

No no you got it with your first guess! I tried getting a grip with some digital calipers but I couldn't manage to get a read on the interior of the plug or the pin of the jack. The only alternative I can come up with is to buy a couple different plugs with the same outer diameter and hope for a fit.

I am hoping the measurements might be info that someone has lying around.