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21
OLEDs / Re: NHD-2.8-25664UCB2 display - Linux device driver
« Last post by BalajiNP on January 08, 2018, 02:17:12 AM »
In Linux Kernel, the drivers are there. It supports the SSD1305, SSD1306, SSD1307 and SSD1309 controllers.

Have anyone used/tested this driver?

The driver path in kernel src: drivers/video/fbdev/ssd1307fb.c

Please provide your comments on this.

-Thanks.
22
OLEDs / NHD-2.23-12832UCB3 & Bits per Pixel information
« Last post by BalajiNP on January 08, 2018, 01:29:00 AM »
In display NHD-2.23-12832UCB3, built-in controller is: SSD1305. Here, number of bits per pixel? Need this information.

How to confirm this value?
23
OLEDs / Re: NHD-0420DZW-AY5 and Arduino
« Last post by Chris O. on January 07, 2018, 10:30:52 PM »
Hi
This may help for anyone looking here in the future http://runawaybrainz.blogspot.com/2014/01/midas-2004-oled-character-display.html
24
OLEDs / Re: NHD-0220DZW-AB5 help!!!
« Last post by Chris O. on January 07, 2018, 09:25:12 PM »
Quote
1. Question 1:
     After reading the NHD-0220DZW-AB5 datasheet, I did not find a way to control the screen brightness. I do not know if the product does not support it or if it is not my way.
Well there is a cheat it's not a full brightness control but more or less 50% and 100% brightness control.
At least it's working properly on my screen Newhaven-NHD-0420DZW-AY5, connected to my MYTHTV server displaying info for more than 4 years already.

Of course it's using undocumented instructions. at least in new Heavens display specifications. There is a bit in one of the instructions to allow you to turn enable/disable the internal power, Embedded DC-DC voltage converter, Brightness DIM/FULL :)
EDIT:
Code: [Select]
11/10/2013
      // This is for my NEWHAVEN OLED NHD-0420DZW-AY5-ND Display and WINSTAR OLED DISPLAY
      //0b0001-G/C-PWR-11 / Sets Graphic or Character Mode, Sets internal power on/off
      //0b0001 - 0- 1 -11 /pwr on  // G/C=0, Character mode is selected. G/C=1, Graphic mode is selected.
                                   // PWR=Internal DCDC on/of control. PWR=1, DCDC on. PWR=0, DCDC off.
      if ((BrightnessValue) >= 128){
        lcd.command(0b00010111); //PWR=1, DCDC on. (Bright)
        delay(10);
        lcd.command(0b00010111); //PWR=1, DCDC on. // not sure why but need to send twice
        delay(10);
      }
      else {
        lcd.command(0b00010011); // PWR=0, DCDC off. (Dim)
        delay(10);
      }
Use this datasheets:
http://www.adafruit.com/datasheets/WS0010.pdf

Please see picture below

25
Evaluation Tools / Re: NHD-FT81x-SHIELD
« Last post by Paul_B on January 03, 2018, 08:47:37 AM »
Hey Carl!

The select example projects on our GitHub page are Arduino Sketches. You don't need to import it as a traditional Arduino Library. 

Regarding the EVE Screen Designer, I don't believe there is an option at this time to output Arduino code for the FT813 IC.  However, you should be able to make it output C code and modify it to run on the Arduino IDE.

Hope this helps!




26
Character LCDs / Re: NHD-0216K1Z-NSW-BBW6L contrast problem
« Last post by bidbid21 on January 03, 2018, 07:44:07 AM »
Hi,
After many search, I think that the problem is caused by electrostatic discharge.
It is possible that connect iron display frame to the ground?
Thanks
27
Evaluation Tools / NHD-FT81x-SHIELD
« Last post by CarlW on January 02, 2018, 10:40:46 AM »
Was able to get the NHD-FT81x-SHIELD plugged into a NHD-7.0-800480FT-CSXV-CTP  :)

Downloaded the github zip folder. Renamed the folder as directed.

Although the github download didn't work for me like a typical arduino library, I was able to run the 7" example sketches successfully, by manually locating the "ino" file

Is the github software supposed to be a typical arduino library and I did something wrong?

Is there a way to use the EVE screen editor to output arduino code? After I change the chip to FT813, the export option wasn't working for me.
Again, I might be doing something wrong.

Thanks!

Carl
28
OLEDs / Re: OLED Multi-Font IC Problems
« Last post by andres888 on January 01, 2018, 12:10:51 PM »
Hi,

Displays built-in IC controllers have limited functionalities comparing their own original version because they have some of their original pins wired to a certain configuration. You can guess such configuration by comparing the original controller pin-out and the display pin-out.
Understanding the IC controller built-in configuration is the first step before coding the display initialization.
You can find the display specs at http://www.newhavendisplay.com/specs/NHD-3.12-25664UMB3.pdf and the original IC specs at http://www.displayfuture.com/Display/datasheet/controller/SSD1322.pdf .

Anyway it's always good fun playing with displays.

Good luck!
29
TFTs / Re: Display Font related issue
« Last post by Saurabh_B on December 27, 2017, 08:20:51 AM »
Hello Darshana,

Fonts and other graphics are controlled by the software and the controller that write to the display.
The onboard display controller will only show what is loaded onto the RAM.

Could you show me what you are displaying currently for the letters?
30
OLEDs / Re: NHD-0220DZW-AB5 help!!!
« Last post by Saurabh_B on December 27, 2017, 08:16:23 AM »
Hello,

There isn't a way to control the brightness for these displays. They are set depending on the voltage input.

Can you let me know the modifications you did to turn the display into serial, also would it be possible to provide a picture of the back of the display?
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