I dont get it, you want to create your button pcb, or you want to know where to wire that ground pad?
For the 2nd option, just wire it to any ground around your build? on the pi, on a teensy, on the ground breakout..

Check this

https://sudomod.com/forum/viewtopic.php ... ilit=14500

https://sudomod.com/forum/viewtopic.php ... ilit=14500

Dang, i was thinking on gameboy SP...

Here's aliexpress link:
https://pt.aliexpress.com/item/Para-o-j ... 08986.html

But i must agree with veteran, its just a common ground pcb... try tinkerboy AIO v3, it looks awsome... i'm waiting for one

Saw that in OpenGBZ github. Very nice, and thanks for sharing.
Although not my favourite handheld, but would be nice to see someone build one

Russian_master wrote: ↑

Sat Jan 26, 2019 6:52 am

I use a translator and do not quite understand what you mean, if about sound then yes I used Usb 3d sound and D-PAM8302 without it the sound of the speaker was very weak

Cool, thanks

Effin Enjeffin wrote: ↑

Sat Jan 26, 2019 12:07 pm

If I had to guess I'd say it looks like the Aliexpress pcb

Yeah, problably are those ones

I just use the adafruit pam8403 ones (blue ones). Still not great, but I found them to be better than the cheapo green amps. But lately I've been using i2s. Little pricey. But quality is amazingly better. https://learn.adafruit.com/adafruit-max98357-i2s-class-d-mono-amp Yeah, these look really grea...

It turned out ok. i think all 1st builds are a bit rough, it's the way it is if you are using single and simple components.
Thus, it works so you can be happy about it.

That controller board, is just a common ground and pwm traces, or it has place for the amplifier?

So, I guess the problem is solved. Edit: I take that back. Still getting multiple button presses every-so-often. It’s extremely frustrating when playing menu based rpgs. If anyone has any suggestions please let me know. Well, probably there was a problem with the common ground board in the pwm trac...