Johweb's build (WIP)

johweb · Post by **johweb** » Sun Sep 04, 2016 5:30 am

Hello everybody.

First of all, I'm sorry if I make mistakes when trying to speak/write in english. Feel free to correct me when needed !

OK, let's talk about my project. As many of us, I want to build my own Gameboy/Pi.
This is the parts list I'll use (I'll update it as soon as possible) :

1/ received parts
Raspberry Pi Zero
Gameboy DMG empty shell
640x480 lcd screen
prs-tech 4 button PCB
silicon pads
screen surround from Dominator
powerboost 1000C
Li/Ion battery pack
power strip from Helder
safe button switch from Camble
wheel potentiometer from an old pc cd-rom drive
headphone jack input from an old pc cd-rom drive
HDMI to VGA converter with audio output

2/ waiting for
a few more plastic buttons
28mm 1W 8ohm speaker
PAM8403 audio amp

johweb · Post by **johweb** » Sun Sep 04, 2016 5:46 am

First week-end to work on my build.
I had to play with my Dremel, to make place for the screen.

: IMG_20160904_112312.jpg (81.51 KiB) Viewed 18642 times

This screen fit almost perfect in the case, I'm happy !
But I had to remove screws support... The only two support left are the blue-colored on my picture... OK, first problem, I have to think about how to have a real nice close for the upper part of the case...
I'll think about it later, but if any idea, you're welcome !

Then, I just dropped the PRS-tech PCB and the screen PCB to see how everything fits...

: IMG_20160904_112451.jpg (106.11 KiB) Viewed 18642 times

I know I'll have to unsolder the white connectors. Anyway, the screen board fits well too in the case, but I may be in trouble later because it's hudge.

Before making more, I prefer to wait for some other parts, to see exactly wher I'm going...

Ninjameep · Post by **Ninjameep** » Mon Sep 05, 2016 6:56 pm

do you have a spare CD/DVD drive from an old, say WINDOWS 95/xp computer? i got my volume wheel from that AND a Headphone jack, desoldering stuff like that is easy and saves money

(im talking about one of these [LINK: http://www.ebay.com/itm/Sony-CRX220A1-5 ... 2548.l4275] )

johweb · Post by **johweb** » Mon Sep 05, 2016 10:04 pm

Ninjameep wrote:do you have a spare CD/DVD drive from an old, say WINDOWS 95/xp computer? i got my volume wheel from that AND a Headphone jack, desoldering stuff like that is easy and saves money

(im talking about one of these [LINK: http://www.ebay.com/itm/Sony-CRX220A1-5 ... 2548.l4275] )

That's a really great idea ! I'll try to find this stuff, I may have that somewhere in my house...

And for closing the upper part of the case, I think I'll hot glue one of these :

Next work : next week-end...

johweb · Post by **johweb** » Tue Sep 06, 2016 6:05 am

johweb wrote:[And for closing the upper part of the case, I think I'll hot glue one of these :

Or maybe I'll try this way

: IMG_20160720_192230.jpg (1.95 MiB) Viewed 18474 times

Not yet decided...

alien0matic · Post by **alien0matic** » Wed Sep 07, 2016 1:06 am

I don't think the hinge will work.

fedplast · Post by **fedplast** » Mon Sep 12, 2016 11:35 am

That hinge would only work if placed on the outside of the case.

johweb · Post by **johweb** » Mon Sep 12, 2016 11:46 am

Never mind, it was just an idea...
No update of my build because I wasn't home last week-end. I'll just update the received parts this week.

johweb · Post by **johweb** » Tue Sep 13, 2016 10:44 am

I've updated my parts list. I received the screen surround, the powerboost. I found an old cd-rom drive from wich I took the wheel potentiometer and the headphone jack input. I also received the battery, but it was too large for my project. So I bought a new one (part list is updated). The actually received one will be used to test and then, I'll use it on another project...

johweb · Post by **johweb** » Sun Sep 18, 2016 10:02 am

OK, I did a few more... I was very happy this week to receive my hdmi to vga converter.

First, I rounded the X and Y holes, for a better look, using this tool :

And this is how it looks now :

: IMG_20160918_114304.jpg (78.35 KiB) Viewed 18077 times

I 3D printed the button wells and it fits well ! (sorry, no picture...)

I also tried to 3D print two little pieces to help closing the case as Cannikin did. But it was crap. I lost a lot of time trynig this...

I put the screen into the case, and had a test with the hdmi to vga converter :

: IMG_20160918_114326.jpg (104.29 KiB) Viewed 18077 times

Got it working !
After a few settings :

: IMG_20160918_131257.jpg (91.24 KiB) Viewed 18077 times

Don't worry about the scratches, there's still plastic protection. It will be ok when I'll remove it.
Then I wanted a sound test :

: IMG_20160918_114334.jpg (109.84 KiB) Viewed 18077 times

It's working fine, I've tested with the linux command "speaker-test". Couldn't try with a real game because no controller was wired...

So, you may say "the converter will be too big to fit into the gameboy !". You're right. So I plan to hack it, keeping only the pcb/ I know I'm looking for difficulties, but that's fun, no ?

: IMG_20160918_131653.jpg (105.46 KiB) Viewed 18077 times

The black wire isn't soldered but everything's working. Should I leave it like this ?

Johweb's build (WIP)

Johweb's build (WIP)

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