Fine! DIdnt know youd keep a usb jack on it, or have custom hardware without the programmer. Would it also have usb midi?

Sigh, it's super easy to flash a Teensy. IT HAS USB FOR THE LOVE OF...

SYSEX! SYSEX! SYSEX!

well that sounds promising

Plus the latest Aboy on Github supports Teensy.

Bit off topic: There is another aboy version in the works that supports USB<->Many MIDI serials relaying as well as as many gameboys as there are free pins. Just need to figure out how I want to implement the configuration setup. (Either sysex or just simple code editing at the top)
https://github.com/trash80/Arduinoboy/b … Arduinoboy

Right, the inputs are not 5v tolerant on an LC but the are very cost effective considering that they have native usb-midi. Plus with all of those analog inputs, you could have some real CC-fun.

Actually for USB MIDI and output to gameboy only, without any additional hardware, a Teensy LC should work as well. If you want input you'll need to drop the gameboy's gb->arduinoboy data line to 3.3v. Teensy LC will probably fry at 5v input.

You can get a Teensy LC around ~$11.50

Honestly it's worth the few extra bucks for a Teensy 3.2 and run the latest Arduinoboy on it, which supports USB MIDI out of the box. $19ish

Anything you need please don't hesitate to ask. The community needs to cover options

Duplicate

This is helpful. Thank you.

Teensyduino is the way to go in my opinion (teensy is MIDI ready). I use HIDUINO to make Midi controlers but in this case you got to change the code and the schematic for the arduinoboy. Doesn't look that difficult. Actually (wild guessing) you can upload the teensy sketch file on a UNO and change the bootloader to HIDUINO and it should work -don't quote me on this-. (You gotta check the in/outs since they are similar boards but not identical).

Cheap arduino clones don't always have the pins for the dfu programming. (that is, the easiest way to program the bootloader for "out of the box" MIDI). Check that before you buy it.

You can enter in dfu mode to change the bootloader for use hiduino. (I know by experience that uno board works great!)
https://www.arduino.cc/en/Hacking/DFUProgramming8U2

I guess that you can figure out which parts of the circuits you won't need anymore.
https://www.arduino.cc/en/Tutorial/Midi

This is a hobby, Man! In this case time=/=money. None of us would be here if Trash80 hadn't put in the time.

Anwyay, I think it's a moot point. Your way would work, but I don't think a DUE will. From what I just read a few minutes ago:

"The Arduino Due has two USB ports available. The Native USB port (which supports CDC serial communication using the SerialUSB object) is connected directly to the SAM3X MCU. The other USB port is the Programming port. It is connected to an ATMEL 16U2 which acts as a USB-to-Serial converter."

I don't think I will be able to use HIDUINO code to get both USB ports Sending/Receiving MIDI signals as the

"HIDUINO takes advantage of Arduino boards where a second AVR chip is used as the USB controller, so it won't work with single chip variants (e.g. Leonardo), nor older boards that use an FTDI chip as USB controller (e.g. Duemilanove). Many cheap Arduino knockoffs that pretend to be an Uno or Mega also might not work, since they tend to use the (slighly) cheaper FTDI chips."

Maybe there is another way to get the two USB ports working with MIDI on a DUE, but I don't see a clear path.

yeah, just keep in mind that your time is worth money too.. and time spent is non-refundable

That would work. But...

NL MIDI Adapter = $15.60 (plus shipping)
Raspberry Pi Zero = $5.00 (plus shipping)
Powered USB Hub with Power Supply = $7.39

Total $27.90 (plus shipping)

Arduino DUE with USB Cable with free shipping = $13.84

Theoretically, if I can get the DUE to work, all it would need is some coding. It's cheaper, self contained, and I should be able to power it from the Gameboy. Of course, I'm not sure I can get both USB ports to work for USB-Through on the DUE.