Handheld MiSTer project

https://github.com/MiSTer-devel/Main_MiSTer/wiki

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amadama
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Handheld MiSTer project

Postby amadama » Tue Apr 16, 2019 3:29 pm

Hi everyone,
I am embarking on a project to build a handheld MiSTer device similar in size to a SEGA Nomad.
Will have:
5-6" 4:3 display (maybe larger, looking for panel at the moment)
DE-10 nano with SDRAM
Powered by 18650 batteries
internal USB HUB with internal USB connected controller.

First step will be very basic with no external outputs other than extra USB ports. Later may have audio out.

Before I start getting along with this I wanted to check with the community here to see if anyone else is already working on something like this. Suggestions are appreciated.
Thanks!

See below for images of a handheld Wii device known as the G-Wii created by Gman. I am using his overall design as a reference for mine.

https://bitbuilt.net/tag/wii/
Image
Image

Sorgelig
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Re: Handheld MiSTer project

Postby Sorgelig » Tue Apr 16, 2019 3:37 pm

It's definitely doable if you have enough motivation.
The hardest part will be the case. The one from your pics made by expensive industrial 3D printer. Very expensive.

Locutus73
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Re: Handheld MiSTer project

Postby Locutus73 » Tue Apr 16, 2019 4:14 pm

Following my daydream in another post, I think a clamshell design is better suited for a device like MiSTer which handles both retro consoles and computers.
Something resembling a GPD WIN
Image
(first model)

Image
(second model)

or a DragonBox OpenPandora or Pyra
Image

Regards.

Locutus73

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Newsdee
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Re: Handheld MiSTer project

Postby Newsdee » Wed Apr 17, 2019 2:53 am

I have a GPD Win, I dreamed of having a Windows PC like that for years. It's great but it tends to overheat noticeably. I'm not sure if they improved it for the GPD Win 2.

This is probably doable with a custom PCB but then it's more of a MiST than MiSTer.

I do like the NDS style clamshell design better. It feels more protected and less prone to scratching.

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telengard
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Re: Handheld MiSTer project

Postby telengard » Wed Apr 17, 2019 3:36 pm

I had a GPDWin and really didn't like it. Awkward center of gravity and the hinge was always loose (even new). It was nice having the keyboard though. I wonder if an on-screen keyboard could be implemented?

Something more akin to the G-Wii would be ideal (for me at least).

jemismyname
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Re: Handheld MiSTer project

Postby jemismyname » Thu Apr 18, 2019 12:49 am

I loooooove this idea! I definitely vote for a GPD-Win clamshell type design... Nintendo (3)DS style fo-eva!!

also, an integrated keyboard would be invaluable in order to fully support the computer cores...

I can't wait to see the "Wicked Gamer and Collector" on youtube review this!!

"Package from CHINA!!!" lol

amadama
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Re: Handheld MiSTer project

Postby amadama » Sat Jun 15, 2019 1:28 am

I'm at wits end trying to find a good screen for this project and would love some help and input on this.

I'm trying to find a 4:3 aspect ratio LCD/OLED screen that is 5-8" in size.
Can someone give me some recommendations here?
Thanks!

RandomRonn
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Re: Handheld MiSTer project

Postby RandomRonn » Tue Jun 18, 2019 2:43 pm

amadama wrote:I'm at wits end trying to find a good screen for this project and would love some help and input on this.

I'm trying to find a 4:3 aspect ratio LCD/OLED screen that is 5-8" in size.
Can someone give me some recommendations here?
Thanks!


Have you considered using one of the old PSOne screens? They are the correct size and aspect ratio, and have everything pretty much wired up already for you.

Scralings
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Re: Handheld MiSTer project

Postby Scralings » Sat Jun 22, 2019 3:12 pm

I am by no means an authority on this type of thing but you could check out http://m.panelook.com/resmodlist.php?st ... =-1&best=0

Those are the 1024x768 4/3 panels. Quite a few 8” I didn’t dig deep yet. One thing I would prioritize is response time and color depth. Also it would be best to use an IPS for some of the arcade cores although flipping it sideways with out a USB port would be moot. A lot of the vendors you have to contact to get information about the response time 25 is typical for ips however with that comes a ghosting effect I can’t stand.

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Re: Handheld MiSTer project

Postby Sorgelig » Sat Jun 22, 2019 3:47 pm

I would also drop all glared screens right away. It's awful to look at display and see yourself as in mirror.

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Re: Handheld MiSTer project

Postby bazza12 » Sat Jun 22, 2019 4:47 pm

Sorgelig wrote:It's awful to look at display and see yourself as in mirror.

depends how vain you are sorg hehe 8)


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