Category: Game Boy Zero

Stereo Audio with Single Speaker Setup

This setup uses both left and audio channel.

1. Solder a wire from the PWM0-R pad to the Pi Zero’s GPIO18 pin or the Pi 3’s right audio from the headphone jack.
2. Solder a wire from the PWM1-L pad to the Pi Zero’s GPIO13 pin or the Pi 3’s left audio from the headphone jack.
3. Solder the volume pot to the board with their respective pins. You can use a 5-pin or a 3-pin volume wheel.
4. Solder a wire from the S_R+ pad to the speaker’s positive(+) pin.
5. Solder a wire from the S_R- pad to the speaker’s negative(-) pin.
6. Last step is to combine both left and audio for the speaker by soldering a jumper wire from S_R+ pad to S_L+ pad.
7. For Pi Zero build, edit the /boot/config.txt and add the following line:
   dtoverlay=pwm-2chan,pin=18,func=2,pin2=13,func2=4

You can also use 2 speakers for left and audio output if that’s what you want.

There are different ways to setup the audio on a Game Boy Zero/3 but this is the most common and easiest way to do so good luck and happy building!

Update: tinkerBOY DPI Adapter v1.0 now available!

I just got my DPI Adapter a few days ago and have been testing it earlier. I made this one to make it easier to use a DPI screen for Game Boy Zero and Game Boy 3 projects. It works on both the Pi Zero and Pi 3. There’s a builtin backlight driver but im still waiting for parts to finish it

This one is designed specifically for a commonly used 3.5″ lcd for GBZ/3.