Collecting information on alternative displays - please contribute

General GBZ-related chat goes here. Share ideas, tips and tricks, or ask questions that don't fit into the hardware/software help forums.
User avatar
calmkiller
Posts: 15
Joined: Tue May 10, 2016 7:53 am
Been thanked: 2 times

Re: Collecting information on alternative displays - please contribute

Post by calmkiller » Thu May 19, 2016 4:45 am

Cannikin wrote:Guys with the dead screens: do you have any way to send it more volts and see if that helps? You could setup some AA batteries in series to get 6, 7.5 or 9V and see if that brings it to life...
A 9Volt Battery should work right? I will see what I have at work. Might have something outputting 9V.

User avatar
Popcorn
Trailblazer
Trailblazer
Posts: 354
Joined: Thu May 05, 2016 12:58 am
Location: Berlin
Has thanked: 29 times
Been thanked: 71 times

Re: Collecting information on alternative displays - please contribute

Post by Popcorn » Thu May 19, 2016 6:31 am

Sooo. I just received my display today. Gonna crack it open, and test it all out on 5v and for video burn-in/flickers.

Before I do that, I'm looking at the spec sheet that it came with. It states that the resolution is 480x272! Did anyone try this res??

Image

PeteB
Posts: 5
Joined: Wed May 18, 2016 11:15 pm
Has thanked: 1 time

Re: Collecting information on alternative displays - please contribute

Post by PeteB » Thu May 19, 2016 7:59 pm

Popcorn:

I don't think that is the spec for the 3.5". If you look it also says you screen is 3.5"/4.3"/5.0" all at the same time? Also 4:3/16:9 at the same time?

The 480x272 sounds like a 16:9 aspect ration screen, maybe the 5.0" model.

Pete B.

User avatar
crispy_tofu
Posts: 340
Joined: Thu May 05, 2016 1:51 am
Location: Australia
Been thanked: 5 times

Re: Collecting information on alternative displays - please contribute

Post by crispy_tofu » Fri May 20, 2016 12:23 am

The Us-vision screen from Amazon has arrived (one day late) and first impressions look pretty good. :)
5V doesn't work well with this display (lots of flickering), although it looks like it can be modified - I'll do a full write-up tonight (in Australian time).

User avatar
Fleder
Posts: 849
Joined: Thu May 05, 2016 9:04 am
Location: Germany
Has thanked: 183 times
Been thanked: 258 times

Re: Collecting information on alternative displays - please contribute

Post by Fleder » Fri May 20, 2016 12:41 am

PeteB wrote:Popcorn:

I don't think that is the spec for the 3.5". If you look it also says you screen is 3.5"/4.3"/5.0" all at the same time? Also 4:3/16:9 at the same time?

The 480x272 sounds like a 16:9 aspect ration screen, maybe the 5.0" model.

Pete B.
I've got a 5" screen that can be switched to 4:3 or 16:9, so this does not mean it is not the one described.
But I too doubt that this one has this particular resolution.
Is there a way to be certain what the native resolution of a display is in debian?

User avatar
crispy_tofu
Posts: 340
Joined: Thu May 05, 2016 1:51 am
Location: Australia
Been thanked: 5 times

Re: Collecting information on alternative displays - please contribute

Post by crispy_tofu » Fri May 20, 2016 1:18 am

crispy_tofu wrote:The Us-vision screen from Amazon has arrived (one day late) and first impressions look pretty good. :)
5V doesn't work well with this display (lots of flickering), although it looks like it can be modified - I'll do a full write-up tonight (in Australian time).
Welp, never mind - LCD broke after trying to get the controller board off, even when it was heated up (a lot, the board was scorching hot). Time to get a new one... :cry:

User avatar
calmkiller
Posts: 15
Joined: Tue May 10, 2016 7:53 am
Been thanked: 2 times

Re: Collecting information on alternative displays - please contribute

Post by calmkiller » Fri May 20, 2016 6:20 am

I took the screen to work and checked it out. 5 Volts out. 5 Volts into the board for the screen. I tried a 9 Volt battery and no power to the screen. Board had power though. I am using a 5 volt 1 amp power supply. Should I use 2 amp or would that make a difference?

User avatar
Ganreizu
Posts: 552
Joined: Thu May 05, 2016 8:20 am
Has thanked: 168 times
Been thanked: 97 times

Re: Collecting information on alternative displays - please contribute

Post by Ganreizu » Fri May 20, 2016 7:43 am

Cannikin wrote:mg]http://i.imgur.com/pw88ok8.jpg[/img
Can you tell me what those buttons do?

menu | sound up | + | - | ?

User avatar
solder
Posts: 71
Joined: Thu May 05, 2016 3:27 am
Has thanked: 26 times
Been thanked: 14 times

Re: Collecting information on alternative displays - please contribute

Post by solder » Fri May 20, 2016 8:19 am

So i just got this interesting screen i ordered from eBay.de

from seller emarket666

Beware it comes from CN and took around 2.5 weeks :/

The screen you get IS NOT the screen that is on the eBay pictures,
it doesn't have the brightness/contrast buttons altho it seems you can hook some to the pcb.

The pcb is neat and small and it's back is interesting!
Check out the pics. I just opened it and took the pics, will probably hook it up this weekend but maybe someone has a similar one that they already tested? 3.3V? 5V? LED?

Image

Image

Image

Image

User avatar
solder
Posts: 71
Joined: Thu May 05, 2016 3:27 am
Has thanked: 26 times
Been thanked: 14 times

Re: Collecting information on alternative displays - please contribute

Post by solder » Fri May 20, 2016 3:25 pm

Works out of the box hooked to the 5V pin :]

Image

And works wired to the 3v3 pin :D

Image

So, electronics noob guess, using the display by powering it over the 3V3 it will consume considerably less power?
If so that would be great considering i'm planning a Rpi3 build.

Post Reply

Who is online

Users browsing this forum: Bing [Bot] and 1 guest