Portable RetroPie Emulator with Raspberry Pi Zero (Gameboy Clone)

by bricogeek May 27, 2016
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Just what I'm looking for !

Tengo problemas con la conexión de los pulsadores podría enviarme un esquema de las conexiones en la placa perforada muchas gracias

tengo un problema con los pulsadores. No se como van conectados exacatmente

There is twice GPIO 18 in your schematic.

Amazing model, I would totally go for this if it weren't for the lack of left and right buttons, or am I missing something?
Hopefully in the next version'?

Hi, finally this is not a 7 inch screen but a 3.5, right?
Which screen do you use? All parts where buy there ? http://tienda.bricogeek.com/ Do you have the list ?

One other question, this will be OK for the composant? https://www.amazon.fr/Pistolet-910-3-Compact-Filaire-Accessoires/dp/B00439G4ZE/ref=cm_cr_arp_d_product_top?ie=UTF8


Yes, the 7 inch display is used only for initial configuration. The machine uses a 3.5' display from Adafruit (SKU: 913) wich are available in our website here: http://tienda.bricogeek.com/pantallas-lcd/574-pantalla-tft-35-ntsc-pal.html
Here is the BOM list:

  • 1 x Raspberry Pi Zero
  • 1 x Adafruit 913 (Screen)
  • 1 x Adafruit 1712 (Audio amplifier)
  • 1 x Adafruit 1944 (Powerboost)
  • 1 x Pololu 799 (DC booster)
  • 1 x Perfboard
  • 8 x Momentary push buttons
  • 2 x speakers (the flatter the better)
  • 1 x 3.7V LiPo battery (I used 2000mAh)

For the audio circuitery you will need some capacitor and resistors components, but don't waste your time, the audio doesn't work im my version. Your probably need to use a Teensy board for the buttons and conect it by USB to free some CPU and have audio working.

Updated description with this BOM list

Big thx for your fast and complete answer !
Something like that will work audio ? https://www.adafruit.com/product/1475

Hi Jonathan,
I recently discovered that this amplifier work really well on the Pi Zero, so I may upgrade my project with this:

Best design for using the zero I've seen yet, but not much in the way of a tutorial on your blog and it's in spanish if i'm not mistaken. Do you know of any premade audio amps I could use instead of the schematic you have pictured? I really like your design because it incorporates audio and uses a bigger screen (all the rest seem to use a tiny 2.4 inch)

Hi tfrost1980,
The main problem is the Zero can't handle audio at the same time the script to handle buttons (retrogame from Adafruit). But you can: 1) Use a teensy to handle buttons and connect by USB or 2) a USB sound card. I think there is a little bit of space to do one or another. Maybe in a future design, we'll see :)

Really great project, but when I download and open the stl's in autodesk inventor, the gameboy is close to 90 inches tall, so I'm having a hard time determining the right scale to use in order to print it at actual size.

Don't import STL to Inventor but directly in Repetier or Slicer at 1:1 scale. Should be around 180mm tall, enought for most printers.

switch to mm instead of inches