How to make Gameboy Zero

lostless

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lostless

@omission229 calm down. No need to rage. You are entering a whole realm of possibilities on how to do this project. You just don’t wire up buttons to the pi and expect it to work. There is not just a place where you wire a button and it does something. You should learn what GPIO is and how it works. Those pins on the pi are multi purpose and you program them on what to do. And that requires some programming knowledge, well beyond what I’m even capable of. And that’s with some basic knowledge on how the pi works. And they can be inputs or outputs depending on what pin and how the are programmed. Also some basic electronic knowledge comes handy.
Your screen can also be gpio based, but will require you to install a driver to run it off. The easiest way would be to get an hdmi screen.
A lot of these kits you buy, like the said retroflag one mentioned above, have done all the hard labor and programming to get them to run. You have to use their version of retropie with all their drivers built in and scripts that programmed the controller and power management.
The pi is meant to be a computer, where you learn how computers work. Time to start learning and Good luck on your adventure and project. I hope you enjoy the process as much as I have.

mitu

@omission229 There are a lot of resources (including videos) detailing how to connect a button to a Raspberry PI via GPIO and how to read when the button is pressed/released (see [1], [2]).
As @lostless said, just connecting the button is not enough, the inputs need to be translated into something meaningful for an emulator - usually this is done with a Python script, but it can also be handled with a driver (see [3], [4] or [5]).

You can also take a look at complete builds including RetroPie for similar Gameboy-like handheld devices in (see [6] or [7]).

[1] https://raspberrypihq.com/use-a-push-button-with-raspberry-pi-gpio/
[2] https://thepihut.com/blogs/raspberry-pi-tutorials/tutorial-tactile-switch

[3] https://github.com/mholgatem/GPIOnext
[4] https://retropie.org.uk/docs/GPIO-Modules/
[5] https://github.com/recalbox/mk_arcade_joystick_rpi

[6] https://learn.adafruit.com/pigrrl-raspberry-pi-gameboy
[7] https://learn.adafruit.com/super-game-pi

omission229

Yeah but most people use button pcb's which is way different than just using seperate buttons

omission229

found it here: https://www.instructables.com/DIY-Raspberry-Pi-Zero-Handheld-Game-Console/ the dude used recalbox but I don't think it will really make a difference

omission229

https://www.instructables.com/GameBoy-Pi/ This is more acurate >:V

lostless

@omission229 looks like your on your way to learning how all this works. As you can tell there is more than 1 way to achieve this project. And is why no one here can just tell you what to do. Just FYI, to help you on your way, the wiring chart you posted is for recalbox and will not work on retropie. It looks like recalbox has already added gpio support and from what I could find, you have to edit a config file to enable it. The second method you posted uses a script you have to download and has a different wiring diagram. Good luck and have fun.

omission229

now im really raging 😡

omission229

This is from the second link and this guy uses retropie
LEFT 4 # Joypad left

RIGHT 19 # Joypad right

UP 16 # Joypad up

DOWN 26 # Joypad down

LEFTCTRL 14 # 'A' button

LEFTALT 15 # 'B' button

Z 20 # 'X' button

X 18 # 'Y' button

SPACE 5 # 'Select' button

ENTER 6 # 'Start' button

A 12 # Left shoulder button

S 13 # Right shoulder button

omission229

@lostless said in How to make Gameboy Zero:

@omission229 looks like your on your way to learning how all this works. As you can tell there is more than 1 way to achieve this project. And is why no one here can just tell you what to do. Just FYI, to help you on your way, the wiring chart you posted is for recalbox and will not work on retropie. It looks like recalbox has already added gpio support and from what I could find, you have to edit a config file to enable it. The second method you posted uses a script you have to download and has a different wiring diagram. Good luck and have fun.

How could you say that? This is not even fun at all.

lostless

@omission229 if you are raging and not having fun, then maybe this project is not for you. And thats OK.
As I said before, the raspberry pi was created to help teach computers and electronics to people. Something cheap to mess around with. It’s not a premade, build it yourself kit. It’s just a generic dummy computer that you program. And to do what you what you want, there are several ways to achieve that. Either you buy a premade kit like the retro flag, or you learn how to do different ways to achieve this. And you can tinker and mess around to get the result you want. And that requires learning the ins and out of the pi and Linux, and small amounts of scripting. And you will fail and mess up and retry over and over. Like I didn’t with my first retro pie project. And over time I learned how it works. But Between me and @mitu and your little research, you have some ideas to work with.

omission229

I don't care what you say im doing things my way >:(

omission229

I have an idea. I can get a cheap nes handheld from Amazon and replace the main board with the pi

lostless

@omission229 said in How to make Gameboy Zero:

I don't care what you say im doing things my way >:(

No one here is saying you can’t. ??????

@omission229 said in How to make Gameboy Zero:

I have an idea. I can get a cheap nes handheld from Amazon and replace the main board with the pi

Good. Sounds like a project you can work on.

omission229

but will it work?

lostless

@omission229 The question should not be will it work, in electronics the question should be how can I make this work? The only limiting factor is your drive to learn and how much work you want to put into a project.