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Game Boy Dmg-01

To reach the goal of a chiptune/MIDI bluetooth Ukulele we have to :

Boy
  1. Build a playable ukulele
  2. Make it sound as an original gameboy
  3. Send it in a bluetooth chip to convert in MIDI

Nintendo DMG-01 - Game Boy Console Manuals & User Guides. User Manuals, Guides and Specifications for your Nintendo DMG-01 - Game Boy Console Game Console. Database contains 1 Nintendo DMG-01 - Game Boy Console Manuals (available for free online viewing or downloading in PDF): Manual. This backlight is compatible with the  Nintendo Original Game Boy DMG-01  and  Game Boy  Pocket. It is  NOT  compatible with the following models:  Game Boy Color, Game Boy Advance, Game Boy Advance SP, Nintendo DS, or Nintendo 3DS. Some of the most common components to go missing on a Game Boy are link port covers, screws, and battery covers. How to fix it. Official support for the Game Boy from Nintendo is no longer available. Parts must be replaced from used Game Boys or using third party reproductions. The Game Boy. Game Boy DMG-01 modding step by step guide. I just finished modding another Game Boy DMG-01 and this time I photographed the whole process so that I could use it for a step by step guide. Instead of going into details about the obvious mods, like replacing the screen (cover), buttons and silicon parts I will focus on the more technical aspects.

1. Build a playable ukulele :

The idee for this ukulele it's can be build without any modification of the gameboy shell without adding screw or glue.

Gameboy Dmg-01 Lcd

In this intention I design a neck 3D print in one piece for an easy production and a better sound with standard ukulele tuner which can be found cheap an easly on the net .

The other piece which need to be build is the bridge. After week of trial, I found the best place is in place of START/SELECT buttons. With screw in the actual holes to fix it and supporting the strings tension.

About the strings tension, they are big enought to bend the plastic of the body. To reinforced the body I design a plate to replace the PCB and contercare the tension.

2. Make it sound as an original gameboy

The Game Boy has four sound channels: two square waves with adjustable duty, a programmable wave table, and a noise generator. But a yukulele get 4 string so it can't be use for it.

This audio-processor as all of this vintage console are not product anymore, so the best thing to do is to recreate this sound string by string.

Actual ukulele or other instrument pickup sense all strings at the times and the strings are not in metal, wich reduce the choise for the sensor. After some try I choose IR reflective sensor which are not so expensive and the consumsion are low (20mA each sensors) sun light resistant and with a good string sensibility.

The sound of the string is square-up with a fuzz effect with logic-gate use as amplifier to get the vintage touch and the warm of analogic sound.

All strings square sounds are mixed-up and send via a 2W amplifier to a speaker or headphone wich can be trim by thumbpot potentiometer.

3. Send it in a bluetooth chip to convert in MIDI

The power is provide by 4xAA battery from the original battery.

For the MIDI convertion we need for eache string this dynamic/volume signal and the frequency/note. Each of this signals is provide by the pickup and the fuzz effect wich square up the signal and send it to the ESP32.

Fer bluetooth connextion, I choose the cheap and easy ESP32 and a screen to enter into the menu with the gameboy playable buttons

All of the electronic and sensor will fit in one pcb.

software is not my best, but with the help of the maker community it will be possible!

  • 1Chip Info
  • 2Game Boy DMG-01 Capacitor List
  • 3Schematics

Chip Info

DMG-CPU-06

  • U1: CPU: DMG-CPU
  • U2, U3: RAM: LH5264TN-TL
  • U4: DMG-AMP


Game Boy DMG-01 Capacitor List

A quick note on replacing capacitors: there are a few caps on the LCD board that require removal of the LCD module to desolder. For those caps, I would not attempt to remove the LCD module, instead I would cut the leads as close to the old capacitor body as possible and solder the replacement parts to the old legs. The LCD modules are known for developing bad connections, so you probably don't want to aggravate the LCD during the capacitor replacement process.

DMG LCD-06


Game Boy Model Dmg-01

DMG-CPU-06

DMG JACK

DC CONV DMG

DC CONV2 DMG


Schematics

Gameboy Music Maker

Drawn by Jeff Frohwein [1]

Nintendo Game Boy 1989 Dmg-01

DMG-01 Schematics

  • CPU Section

  • LCD Section

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  • Power/Cartridge Section

Related Schematics

  • 4 Player Adapter

  • Super Game Boy SNES Cartridge

Gameboy Dmg-01 Battery Fix

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