sudomod

My latest GBZ. No hotglue this time. Where things aren't screwed in, I secured it with Gorilla Glue Clear Grip (E6000).

Buttons, shell and screen guard are from retro-modding.com. The last grey screen guard I bought was lighter color though, and I wish this one was a few shades lighter, but oh well. rear buttons are my 3d design, sanded and coated. the screen bracket is one i designed/reworked.

After picking out and buying the buttons and shell, I did think to myself, "wait, didn't rodocop do one with similar colors recently?" - yes, yes he did - so he was first with this, but copying it wasn't intentional

Button board is from pocketadventures.com. otherwise, for components, it's just an adafruit i2s DAC/amp, an ads-1x15, helder's power strip, and a generic power supply. i have a button for monitor icon toggle and shutdown, and then a digital toggle for volume up/down and a hotkey.

that hotkey at the volume button has combo keys on it for making an LED mounted in the cartridge brighter and dimmer, with PWM, as well as combos for wifi toggle, bluetooth toogle, and an info readout. once i have the code bugs and instructions worked out, I'll post links to the software.

The screen is a 3.2" SPI LCD. Battery is 4000mah, and fits in teh battery compartment without modding.

One lingering problem I'm still trying to work out is that the left d-pad gets stuck "on" (but I don't think it's the pad getting stuck pressed down, it seems like the signal isn't shutting off, until I hit that button again). I haven't been able to figure out what is causing that, and it's intermittent and pretty random.

pics...
more...

Looks great!!

Some more notes...

For the cartridge, I used a Game Boy Color Pokemon Crystal cartridge that I got off ebay for a couple bucks. I took that, removed the game card and then filled it up with some epoxy resin that I was hoping would pick up the LED light from a bulb mounted back there. I mixed in a little dye and glitter to match how the cartridge already looked. I think it looks pretty good.

I had some epoxy left over, so I also made a sparkly little Han Solo In Carbonite

Ooh, that wiring is sexy. Love the build.

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here's a couple simple brackets I made during this build, that others might find useful...

Simple Adafruit I2S Amp Bracket
Simple ADS-1015/1115 (purple board) Bracket

GigaCat wrote: ↑

Mon Jul 22, 2019 8:08 am

Ooh, that wiring is sexy. Love the build.

thanks

Nice!

I wish there was a stereo I2S amp with a small footprint like that mono one. I've been eyeing the 1334 I2S boards, but they appear to also need an amp. They make all-in-one stereo I2S boards, but they all seem too big and a bit too power-hungry for a Gameboy build.

RxBrad wrote: ↑

Mon Jul 22, 2019 10:30 am

Nice!

I wish there was a stereo I2S amp with a small footprint like that mono one. I've been eyeing the 1334 I2S boards, but they appear to also need an amp. They make all-in-one stereo I2S boards, but they all seem too big and a bit too power-hungry for a Gameboy build.

thanks me too, on the amp. the sound is so much better outa these than even usb, imo, not to mention pwm. i just downmix, and usually use the speaker output anyway, so it's not too big a loss, but stereo would be nicer.

Hmm... It looks like you could actually wire two of them to the Pi, sharing the same pins, and get stereo output. See page 31 of the datasheet: https://datasheets.maximintegrated.com/ ... 98357B.pdf

(EDIT: It looks like you'd need to remove the indicated resistor from the breakout board to make this work) You'd connect PP9 (1.8v) of the Pi to the SD pin on one board to make it output only Left Channel audio. And you'd connect PP9 --> 69.8k resistor --> SD pin to the other board to make it output only Right Channel audio.