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46  Using Arduino / Displays / Re: 0.96 oled with 4 pins wont work? on: July 10, 2014, 04:22:11 pm
Very good, thanks for the feedback.

Oliver
47  Using Arduino / Programming Questions / Re: Menu for Display on: July 10, 2014, 03:32:04 pm
Hi

Looks good, but the question is, what exactly do you expect to happen?
Additionaly i do not know this ReadKeypad library. Maybe you can provide a link to that library.

Oliver
48  Using Arduino / Displays / Re: ERC12864 display with the ST7565R controller on: July 10, 2014, 02:54:32 pm
Hi

U8glib supports displays, based on the ST7565 controller. Best is to try several U8glib constructors for that controller. Maybe one existing is fitting. If not, i can support to adjust an existing U8glib constructor.

The backlight is independent from the ST7565. Depending on the color, the maximum current is given on page 10 of the datasheet. You must apply an external resistor to meet the specification. If you connect the red/black wire directly to a power source you will destroy the backlight.
ResistorValue = (SupplyVoltage - VLED)/ILED

Whether the display is readable without the backlight depends on the "sunlight readable" attribute of your display (see page 6 of the data sheet). You will be able to read something without backlight if your display is "sunlight readable".

Oliver
49  Using Arduino / Displays / Re: Report: Inexpensive SPI based TFT Displays (PCF8833, ST7735, ILI9341) on: July 10, 2014, 02:42:04 pm
Ok, looks nice. Still the main problem is the price. Ucglib is just a private project.

Oliver
50  Using Arduino / Displays / Re: 0.96 oled with 4 pins wont work? on: July 10, 2014, 02:37:17 pm
Thanks to this thread I got my display working!

Hurrah!

The only issue is that the output is shifted over to the left by what looks like two pixels — and I get a white line of pixels down the right hand side of the display.



James


Looks like you have a SH1106 display. Version 1.16 has a new constructor U8GLIB_SH1106_128X64, which differs from the U8GLIB_SSD1306_128X64 only in the shifting of two pixel. I would be interessted to see if that constructor works with your display.

Oliver
51  Using Arduino / Displays / Re: Report: Inexpensive SPI based TFT Displays (PCF8833, ST7735, ILI9341) on: July 09, 2014, 01:31:27 pm
It seems to be difficult to find an SPI based display with RA8875 on ebay.

Oliver
52  Using Arduino / Displays / Re: Report: Inexpensive SPI based TFT Displays (PCF8833, ST7735, ILI9341) on: July 08, 2014, 02:51:09 pm
Hi

I do not own this device,so i can not test any implementation for this controller. Additionally i focus more on SPI based displays. Not sure whether this controller has an SPI input.

Oliver
53  Using Arduino / Displays / Re: 0.96 oled with 4 pins wont work? on: July 06, 2014, 07:27:49 am
U8glib support XBM file format. GIMP can convert pictures and export to XBM.

Oliver
54  Using Arduino / Displays / Re: 0.96 oled with 4 pins wont work? on: July 06, 2014, 02:35:52 am
Quote
If you say it WILL be supported by the NEXT U8glib release then how does yours work if the release is not out yet? what version of U8glib are you using? Could you please post a picture of the back of your oled

I released the new version (v1.16) of U8glib yesterday.
A picture of the back side has been posted two answers before.

Good, that your display now works.

Oliver
55  Using Arduino / Displays / Re: U8glib: Graphics Lib for LCDs and OLEDs on: July 05, 2014, 11:45:43 pm
Hi

Without having this tested, i think the warning can be ignored.

Code:
const char szLabel[] PROGMEM = "Max:";  // defined in global space

u8g.getStrWidthP((unsigned char *)szLabel); // Inside a function
56  Using Arduino / Displays / Re: Tiny size displays (any) on: July 05, 2014, 03:32:20 pm
If this question is related to my post, the answer is this: The 0.5" OLED from the picture has a dimension of 60x32 pixel.

Oliver
57  Using Arduino / Displays / Re: 0.96 oled with 4 pins wont work? on: July 05, 2014, 02:55:45 pm
This is the back side of my OLED. PCB quality seems to be not as good as your version.

Oliver

58  Using Arduino / Displays / Re: U8glib: Graphics Lib for LCDs and OLEDs on: July 05, 2014, 02:42:53 pm
Hi

Today, I have released v1.16 of U8glib (https://code.google.com/p/u8glib/). Changes include:
  * Added support for LD7032 60x32 OLED
  * Added support for SSD1306 OLED, which does not send I2C ACK (issue 239)
  * Added support for SH1106 128x64 OLED
  * Added support for T6963 128x128 displays
  * Added U8GLIB_SSD1306_ADAFRUIT_128X64 constructor

The picture below shows a 0.5" OLED module based on the LD7032 controller (from
here):



Oliver
59  Using Arduino / Displays / Re: 0.96 oled with 4 pins wont work? on: July 05, 2014, 02:05:47 pm
Hi

Today I noticed, that one of my OELDs seems to be identical to the OLED discussed here. My OLED is from HelTec. It can be connected directly to 5V (data lines and power) and does not require pull-up resistors. The OLED will be supported with the next U8glib release with the following constructor:
Code:
U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NO_ACK); 

This HelTec OLED does not fully support I2C. It does not send any acknowledge on the I2C bus (actually this is a problem of the SSD1306 controller). As a result the OLED is invisible to any I2C scanner and requires special I2C low level software which can handle missing ACKs.

See my OLED here:


Oliver
60  Using Arduino / Displays / Re: Tiny size displays (any) on: July 01, 2014, 07:12:54 am
I recently got this 0.5" OLED display module:

From here:
http://www.aliexpress.com/store/product/0-5-inch-OLED-display-shield-for-Arduino-OCELL/329792_1944014364.html

Support will be added to the next u8glib release, but a prerelease is already available.

Oliver
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