PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

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PF21
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PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by PF21 » Thu Feb 15, 2018 2:48 pm

This is my second build, and honestly it’s the one I wanted to do since I first saw the GBZ and asked, Pi3? Almost everything inside will be different from my first, which was a pretty vanilla GBZ. Sota’s Pi3 and VeteranGamer’s builds gave me a lot of ideas and inspiration but I’m going to try to make this project my own. I’m not crediting myself with anything original here, and will do my best to credit the pioneers of Sudomod community accordingly. Now, time to get this build started.

I’ve already modified a few of the parts, in preparation. I put the Pi3 on a serious diet; removing the USB ports, Ethernet port, GPIO Header, Audio Jack, Camera Connector, and GSI Display Connector. I also cut off part of one side, which you can see in the pictures.

I have modified the Kedei HDMI Screen. I removed the headers and micro USB. I would not recommend removing the micro USB if you can avoid it. I wound up burning the traces and causing a short, which I had to repair by cutting another part of the trace and installing a jumper.

I modified the game cartridge to fit the Pi3, which means there is only enough left for aesthetics, see pics.

I really liked VeteranGamer’s speaker setup in his Super Famicon Build, so I acquired and modified a pair in similar fashion.

Last note, for now. The sticker set is from Yaya. That was a nice bundle he put together. The battery info doesn’t match but close enough.

Features:
 Translucent Orange DMG-01 Replica Shell
 Raspberry Pi 3 Model B(Trimmed) w/ Heatsink & Fan
 Kedei 3.5" HDMI Screen(Trimmed)
 3D Printed Screen Bracket(for Kedei Screen)
 Black Cartride Shell for DMG-01
 HandHeld Legend Screen Glass
 Yaya's Sticker Pack

Power:
 Generic 2.1A Power Supply from AliExpress
 Camble's Safe Shutdown Switch(for Generic PS)
 AD1115 for Power Monitoring
 Micro USB Breakout
 4000mAh Battery from Ebay

I/O:
 Common Ground Button PCB
 Arduino Leonardo ATMEGA32U4 Breakout Board
 Samsung Stereo Laptop Speakers
 PAM8403 Class D Digital Amplifier
 Black DMG-01 Button's
 DMG-01 Button Membranes
 6mm Tactile Switches
 Black Tactile Switch Caps
 PSP 1000 Analog Sticks
 USB-A Female Jack
 Original DMG-01 Volume Potentiometer
 Original DMG-01 Power Switch Cap
 Blue LED and Resistor(Value TBD)

Connectors:
 6” HDMI Extension Cable(Male A to Male A)
 JST PH 2pin Connector
 JST GH 5pin Connector
 28AWG Silicon Coated Wire
 26AWG Plastic Coated Wire

Round 1:
*Note: A couple of minor components have changed from these pictures of the parts. The 2 HDMI connectors were replaced by a better one that I found and modified. I added the ADS1115 to the parts pile. I further trimmed the Pi3 and case, which you can see in the later photos. I added a 5 pin JST connector for the L&R buttons. Also added tactile switch caps.
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Round 2:
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Last edited by PF21 on Thu Feb 15, 2018 3:47 pm, edited 1 time in total.

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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by VeteranGamer » Thu Feb 15, 2018 3:20 pm

PF21 wrote:
Thu Feb 15, 2018 2:48 pm
I really liked VeteranGamer’s speaker setup in his Super Famicon Build, so I acquired and modified a pair in similar fashion.
nice...
looking good so far.....


those speakers perform really well, especially for the size (you wont be disappointed)....

i would suggest to also try out my wiring as it is in the SNES/Famicom build....

just substitute the USB sound card for the headphone socket on the Kedei screen....
i'm not sure if it will work, as i dont have my HDMI build anymore (which had a different wiring setup)

but if the Headphone socket from the screen has enough power to just power the Headphones....
thats all you need and just leave the amp for the speakers.....

Image


this is how it could sound hopefully (really chuffed with these speakers)




looks like its gonna be a really nice build.....


.

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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by PF21 » Thu Feb 15, 2018 3:44 pm

VeteranGamer wrote:
Thu Feb 15, 2018 3:20 pm
just substitute the USB sound card for the headphone socket on the Kedei screen....
i'm not sure if it will work, as i dont have my HDMI build anymore (which had a different wiring setup)

but if the Headphone socket from the screen has enough power to just power the Headphones....
thats all you need and just leave the amp for the speakers.....
I knew I could use the pi3 stereo sound but figured it wouldnt turn out well. When I was stripping the screen board I realized the stereo from it is probably at least as good as the pi's.

That video's sound is pretty good, I'll make sure to report how mine turns out.

My biggest concern is the power supply. I've not seen anyone report using it successfully yet and the extra power potential could be awesome, or a bigger cloud of smoke :lol:

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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by VeteranGamer » Thu Feb 15, 2018 4:06 pm

PF21 wrote:
Thu Feb 15, 2018 3:44 pm
My biggest concern is the power supply. I've not seen anyone report using it successfully yet and the extra power potential could be awesome, or a bigger cloud of smoke :lol:

the power consumption of the Pi3 (and the heat generated) is the main reason i've held off from using one in a build....
even though i really want to, as i prefer Mame/FBA games and they just run really poorly on the Pi Zero


i not sure about that power supply (but it does have the battery level indicator leds, which is a nice feature)...
it might need to be paired with another device (but dont take my word for it, this is out of my wheel house).....
(someone with more technical knowledge might be able to help further)

Tinkerboy used a different power supply in his builds, he might be a good person to answer....

also i've noticed you've got one of Cambles safe shutdown board, it might be worth checking with him as well if the board can work with that power supply...
(he might also be able to shed info about it)


.

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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by PF21 » Thu Feb 15, 2018 7:42 pm

Progress Update:

Nearly finished the front of the case this evening.
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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by YaYa » Fri Feb 16, 2018 11:49 am

looking good :D i like the black/orange colour scheme
keep us updated !
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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by PF21 » Sat Feb 17, 2018 9:05 pm

Update:

Assembly is almost complete. I plan to put some pics up tomorrow.

Troubleshooting atm:

1. Battery monitor icon shows a lightning bolt while charging but nothing while running on battery. Script modified for ads1115.
2. Kedei screen brightness flickers slightly, although not a big deal, I still plan to investigate before closing the case.

Still need to:

1. Setup Camble's switch.
2. Center joystick is too tight against the front of the case and won't spring back to center, need to adjust.

Notes:

1. Power supply produces more heat than expected. Currently positioned on on top of the pi, separated by a piece of protype board. Ill need to evaluate position, adhesive, cooling.
2. Pi heat is also significant, but expected. I originally planned for a small fan. Considering installing it now.
2. Overall, build is going well. The screen, sound, performance, and power upgrades are all very noticeable and encouraging.

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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by djascher » Mon Feb 19, 2018 1:27 pm

[quote=VeteranGamer post_id=55754
i prefer Mame/FBA games and they just run really poorly on the Pi Zero
[/quote]

Oh wow, good to know. I'm into the old school games also, especially mame. First I've heard it doesn't run so well on a zero. Glad I'm getting in on this with a kite pi3 :)

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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by djascher » Mon Feb 19, 2018 1:27 pm

i prefer Mame/FBA games and they just run really poorly on the Pi Zero
Oh wow, good to know. I'm into the old school games also, especially mame. First I've heard it doesn't run so well on a zero. Glad I'm getting in on this with a kite pi3 :)

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Re: PF21's 2nd Build - Pi3/Kedei/Analogs/Power+/CG-PCB

Post by PF21 » Tue Feb 20, 2018 6:52 pm

Update:

Almost finished. Not today though.
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