It is currently Wed Dec 13, 2017 2:25 am

All times are UTC - 7 hours





Post new topic Reply to topic  [ 43 posts ]  Go to page Previous  1, 2, 3
Author Message
PostPosted: Thu Apr 06, 2017 4:58 pm 
Offline
User avatar

Joined: Sun Jan 22, 2012 12:03 pm
Posts: 5893
Location: Canada
Did this really need a 2 hour bump?

There hasn't even been a post in this forum since then.

If you want to chat with people from this community in real time, I might recommend #NESDev on efnet IRC.


Top
 Profile  
 
PostPosted: Thu Apr 06, 2017 7:52 pm 
Offline
User avatar

Joined: Mon Sep 15, 2014 4:35 pm
Posts: 3153
Location: Nacogdoches, Texas
2 hour and 37 minute bump. :wink:

Anyway, I don't have a clue on the "Super Retro Boy" specifically, but if it's an aftermarket system, you can pretty much guarantee it's not going to be as high of quality as the real thing. You can call me crazy, but I think the AGS-001 is the best model. The colors may be washed out, but there's no ghosting, and although the screen can't get as bright, I like the option for you to actually turn the light off when you don't need it. It's a lot easier on the eyes this way and I also find it's much easier to see in direct sunlight.


Top
 Profile  
 
PostPosted: Fri Apr 07, 2017 2:18 am 
Offline

Joined: Tue Oct 06, 2015 10:16 am
Posts: 601
GBA Micro hasn't been mentioned, but its screen seems to be higher quality than either SPs.


Top
 Profile  
 
PostPosted: Fri Apr 07, 2017 5:13 am 
Offline

Joined: Sun Sep 19, 2004 11:12 pm
Posts: 19335
Location: NE Indiana, USA (NTSC)
The Micro also doesn't play Game Boy or Game Boy Color games, if that's important to you.


Top
 Profile  
 
PostPosted: Fri Apr 07, 2017 10:38 am 
Offline

Joined: Thu Apr 14, 2011 9:27 pm
Posts: 85
If you have a GBA or DS with noticeable horizontal lines on the screen when things move, you can adjust the LCD bias voltage a bit and make it look significantly less noticeable. The adjustment pot is under the battery cover on the SP, DS, and DS Lite, and accessible through the model number sticker on the back of the original GBA.

It's especially important to adjust this when replacing a screen because the new one will probably behave differently from the original.


Top
 Profile  
 
PostPosted: Sat Apr 08, 2017 8:36 am 
Offline

Joined: Tue Nov 23, 2004 9:35 pm
Posts: 631
Grapeshot wrote:
If you have a GBA or DS with noticeable horizontal lines on the screen when things move, you can adjust the LCD bias voltage a bit and make it look significantly less noticeable. The adjustment pot is under the battery cover on the SP, DS, and DS Lite, and accessible through the model number sticker on the back of the original GBA.

It's especially important to adjust this when replacing a screen because the new one will probably behave differently from the original.


You have to be very careful when adjusting this pot. In the early days of the GBA, people first discovered that this pot could make their screen appear brighter, but it could also damage the screen or destroy it if care was not taken.

Could anybody with a really early GBA and Metroid Fusion try to see whether my description of the effect at the end is real or a Mandela Effect?

_________________
Nerdly Pleasures - My Vintage Video Game & Computing Blog


Top
 Profile  
 
PostPosted: Sun Apr 09, 2017 9:40 am 
Offline

Joined: Mon Feb 22, 2016 7:33 pm
Posts: 57
is it possible to mod it with a oled screen if so would someone please do it?


Top
 Profile  
 
PostPosted: Sun Apr 09, 2017 11:07 am 
Offline

Joined: Sun Apr 13, 2008 11:12 am
Posts: 6513
Location: Seattle
Not for a price that you're willing to pay.

I can barely even find the small handful of people making new 240x160 ("HQVGA") full-color display panels at all. The ones I can find are all "transflective", the same display technology you're complaining about in the original AGB-001/AGS-001.

I can't find color OLED screens of that size; they're all smaller (and often not color) or larger.

The original screen is 2.8" diagonal. Via radical rework, you could stuff at most a 3.8" 3.2" width from start/select button × 6÷5 (diagonal/width of 3:2 LCD panel) screen in the same place. It turns out that the standard 480x320 ("HVGA") Raspberry Pi touch screen is 3.5", BUT:
* The GBA emits video as 160i
* The LCD driver for that particular part expects video input as portrait, not landscape, 480p.
And now you would have to add a relatively power-hungry part to handle rotating video for that.

to make sure you see this:
What you want cannot currently be found/made for a price you're willing to pay.


Top
 Profile  
 
PostPosted: Sun Apr 09, 2017 1:16 pm 
Offline

Joined: Mon Feb 22, 2016 7:33 pm
Posts: 57
lidnariq wrote:
Not for a price that you're willing to pay.

I can barely even find the small handful of people making new 240x160 ("HQVGA") full-color display panels at all. The ones I can find are all "transflective", the same display technology you're complaining about in the original AGB-001/AGS-001.

I can't find color OLED screens of that size; they're all smaller (and often not color) or larger.

The original screen is 2.8" diagonal. Via radical rework, you could stuff at most a 3.8" 3.2" width from start/select button × 6÷5 (diagonal/width of 3:2 LCD panel) screen in the same place. It turns out that the standard 480x320 ("HVGA") Raspberry Pi touch screen is 3.5", BUT:
* The GBA emits video as 160i
* The LCD driver for that particular part expects video input as portrait, not landscape, 480p.
And now you would have to add a relatively power-hungry part to handle rotating video for that.

to make sure you see this:
What you want cannot currently be found/made for a price you're willing to pay.


what about a tft screen then can it be modded to work with a gba?


Top
 Profile  
 
PostPosted: Sun Apr 09, 2017 1:17 pm 
Offline

Joined: Sun Apr 13, 2008 11:12 am
Posts: 6513
Location: Seattle
That's what the RasPi screen is.


Top
 Profile  
 
PostPosted: Sun Apr 09, 2017 1:23 pm 
Offline

Joined: Mon Feb 22, 2016 7:33 pm
Posts: 57
lidnariq wrote:
That's what the RasPi screen is.


and?


Top
 Profile  
 
PostPosted: Sun Apr 09, 2017 1:24 pm 
Offline

Joined: Sun Apr 13, 2008 11:12 am
Posts: 6513
Location: Seattle
Reread what I said three posts ago.


Top
 Profile  
 
PostPosted: Sun Apr 09, 2017 1:27 pm 
Offline

Joined: Sun Sep 19, 2004 11:12 pm
Posts: 19335
Location: NE Indiana, USA (NTSC)
It would be expensive and would introduce one frame of lag to translate a signal intended for a screen that scans from top to bottom, such as the Game Boy Advance display, to a signal intended for a screen that scans from left to right, such as the Raspberry Pi display.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 43 posts ]  Go to page Previous  1, 2, 3

All times are UTC - 7 hours


Who is online

Users browsing this forum: Sumez and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group