3.5" ebay screen adjustment pinout

[ShockSlayer]

Those common 3.5" ebay screens can have the brightness/color adjusted, plus the image flipped.

I'm not sure what the pins labeled "NONE" do, I think pin 11 turns off the backlight, or I could've been shorting it.

"loop in scrolling" means that if you were to press "Brightness +" until it got to the max setting, it would reset to the lowest at the next press.

This is useful.

SS

 

[xXPunisher24Xx]

My 3.5" Inch Screen Board looks sort of different from that.
Different revisions?

 

[bud]

Didn‘t limpport on BH discover this?

Anyways, glad to have it here where it is easy to find.

 

[ShockSlayer]

I have no idea, I rarely go on BH anymore. Link?

SS

 

[bud]

Ask and you shall receive.

http://forums.benheck.com/viewtopic.php ... 3&start=45 4th page

 

[ShockSlayer]

Different screen.

SS

 

[bud]

It's for number 2 of Hailrazer's review. Since that's what a lot of people use I assumed it was the same.

>.>

 

[Mako321]

There are lots of different LCDs in the same case on ebay, apparently.

 

[lyberty5]

what do you mean by short ground ? do i have to put 3/5/7's ground to that big round pin, or do i have to connect the black wire on the left side of the board to this big round pin on the corners of the screen?
What about the "voltage" pin, do i have to connect the red wire to that pin?

 

[R00man]

I have one of the these screens that doesn't have the solder pads so I had to figure them out on my own. The 14pin-sop chip that isn't labeled controls most of the functions I think so far I have found pins 5/7 control brightness/contrast and I also found a demo mode wich is enabled with pin 12. Im gonna keep looking around the board too as I need the flip function. Also I forgot to mention I think it was pin 10 that gave me a "fat" mode it made the resolution all funky. Ill also upload a video of the "demo" funcion in a little.

 

[lyberty5]

what do you mean by short ground ? do i have to put 3/5/7's ground to that big round pin, or do i have to connect the black wire on the left side of the board to this big round pin on the corners of the screen?
What about the "voltage" pin, do i have to connect the red wire to that pin?