1 Reply by richy486

(19 replies, posted in Nintendo Handhelds)

It was the settings in mGB! I didn't really know what they should be set to but i moved the first wave option to the right a bit and it worked!!

Thanks for your help everybody

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2 Reply by richy486

(19 replies, posted in Nintendo Handhelds)

I'm seeing activity on the oscilloscope on the "Teeny 17 - link pin 2-SIN (orange)" when i play any notes.
I also noticed that the little arrow above each channel in mGB is showing up when I play notes, so messages are getting through to the gameboy but no sounds, is there something wrong with how mGB is setup?

Tried playing C-2 to C8 but still no sound.

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3 Reply by richy486

(19 replies, posted in Nintendo Handhelds)

Thanks for keeping this thread going.
I haven't got it completely working but got to where perspectiveshifting where the arduinoboy receives the midi messages, the LEDs light up, but the gameboy doesn't play any sounds.

- I started again on the breadboard, is there anything obvious that stands out?
- I used CatSkull's unmodified code: https://github.com/catskull/Arduinoboy currently at 9a3ed0c.
- I'm also powering the teensy with 5v from the gameboy itself so I've cut the USB power from the VCC, i thought this might have been an issue but the teensy is receiving midi. I also can see the device on my mac in the MIDI Studio app and can see messages coming from Live to Midi Monitor.
- I'm building with Teensyduino 1.52 on macOS 10.15.7
- I set the USB Type to "MIDI", "All of the Above" didn't want to connect to my computer as a midi device.
- It's a Teensy 3.2
- I set the Speed to 72MHz, the one just under the overlock setting.
- I wasn't sure that the serial to/from were around the right way to i tried both with no luck.

Currently the pins are:

Teeny 16 - link pin 3-SCK (green)
Teeny 17 - link pin 2-SIN (orange)
Teeny 18 - link pin 4-SOUT (red)
Ground   - link pin 6-GND (red)
n/a      - link pin 1-VCC
n/a      - link pin 5-SD

I might try seeing what the output of the link cable shows in the oscilloscope next but if anybody has any other ideas please let me know!

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4 Reply by richy486

(19 replies, posted in Nintendo Handhelds)

Channel 1

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5 Reply by richy486

(19 replies, posted in Nintendo Handhelds)

Oh right cheers, I thought this file would handle USB midi for Teensy right? https://github.com/trash80/Arduinoboy/b … sbMidi.ino

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6 Topic by richy486

(19 replies, posted in Nintendo Handhelds)

Using a Teensy 3.2, I can compile and upload the sketch from https://github.com/trash80/Arduinoboy fine.
It goes through the startup animation on the LEDs.
I can select a mode with the button.
It even remembers the mode when I restart.

I'm trying to use mGB mode.
But when sending midi from my computer, using Live, through USB, I don't get any status LED changes (or any sound on my gameboy).

The settings in the Arduino IDE are:
Board: "Teensy 3.2 / 3.1"
USB Type: "MIDI"
CPU Speed: "96 MHz (overclock)"
Optimize: "Faster"
Keyboard Layout: "US English"
Port: "HID=#### MIDI (Teensy 3.2)"

I can also see a "Teensy MIDI" in my Audio MIDI Setup on macOS and can see "Teensy MIDI" in Live as a "Midi to" output.

I've used the same pins as in the original code. I updated all the libraries in the Arduino IDE. I tried other USB Types to see if there was some serial debugging info printed.

Here is a picture of my breadboard layout:

I also have an Arduino UNO with a which I can send midi to fine with a USB to DIN 5 cable.

I'm not sure where I have gone wrong, since the start up and mode selection appear to work. Does anybody have any ideas?

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7 Reply by richy486

(25 replies, posted in Nintendo Handhelds)

Maybe try out nanoloop on iPhone if you have one, it's pretty cool.

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8 Topic by richy486

(0 replies, posted in Other Hardware)

Hi,

First up I've asked this on another forum but didn't get a reply I was wondering if anybody here had could help me out. I'm also pretty inexperienced with electronics.

I'm trying to add a volume control to an atari punk console I made from a kit I bought from http://jimmieprodgers.com/kits/apc. I used a 10k logarithmic pot. and wired it up like in this picture:
http://picasaweb.google.com/lh/photo/1q … directlink

I had it working when i followed the instructions but now I get no output. The +/- on the board is where the speaker was originally connected to when I had it working. I have also tried running the negative to the batter negative instead of the speaker negative.

Not sure what im doing wrong here, any help would be appreciated.

Cheers,
Richy

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