Whither Tiny OLED Display?

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ka7ehk
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Posted by ka7ehk: Tue. Nov 19, 2019 - 05:09 PM
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Greets, folks!

 

Several years past, I got an Atmel Dev board with a beautiful little OLED display on it. If memory serves me accurately (probably isn't!), it was a pixel-addressable display that could show two lines of text (by maybe 10-16 characters) and about 1cm x 2cm in outer dimensions. At the time, I searched in vain for a source. I found a few things somewhat close on AliBaba but I am not going to go there.

 

Now, fast forward to now ... I have a possible application for such a display. A really cursory search drew blanks, again. Does anyone have any hints or known sources for such a sweet little display? It could be a character display; I really don't need graphics!

 

Thanks

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

Tags:

Learning and Information, General Electronics, Crystalfontz, OLED, Gabotronics, Memory LCD, Sharp, Newhaven Display, U8g2, U8x8, ATxmega32E5
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awneil
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Posted by awneil: Tue. Nov 19, 2019 - 05:31 PM
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Something like this:

 

https://www.sparkfun.com/products/14048

 

There's actually loads of them about - try searching "128x32 OLED" or "128x64 OLED"

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gchapman
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Posted by gchapman: Tue. Nov 19, 2019 - 07:35 PM
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ka7ehk wrote:
... and about 1cm x 2cm in outer dimensions.

Small 48x64 .71inch OLED Display (CFAL4864A071BW) (Crystalfontz)

[14*22*1+ mm]

Use case for small OLED :

ARM9 Based Linux SOM (System On Module) (CFA10036)

 

OLED are wide temperature range though aren't sunlight readable (add a sunshade)

 

edit :

OLED - Crystalfontz LCD Glossary

[bottom]

...

Some OLED displays are bright enough to be sunlight readable–these models will typically take more current and may have a shorter rated lifetime.

...

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Tue. Nov 19, 2019 - 07:39 PM
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js
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Posted by js: Tue. Nov 19, 2019 - 07:47 PM
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I got an Atmel Dev board with a beautiful little OLED display on it.

The Xmega E5 board? I thought I had a diagram with  part numbers but can't find it.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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ka7ehk
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Posted by ka7ehk: Tue. Nov 19, 2019 - 07:59 PM
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Probably was that E5 board. I remember finding the part number and OEM name, but then unable to find the specified source. It was probably hidden off in some corner of China.

 

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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jgmdesign
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Posted by jgmdesign: Tue. Nov 19, 2019 - 08:07 PM
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This:

 

https://www.microchip.com/webdoc...

 

 

JIm

 

Edit:

Part number: UG-2832HSWEG04
 

Manufacturer: WiseChip

 

Datasheet: https://cdn-shop.adafruit.com/da...

 

Purchase on Amazon: https://www.amazon.com/UG-2832HS...

or

https://www.elecok.com/ug-2832hs...

 

Or

 

https://store.digilentinc.com/pm...

 

 

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Last Edited: Tue. Nov 19, 2019 - 08:15 PM
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ka7ehk
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Posted by ka7ehk: Tue. Nov 19, 2019 - 08:10 PM
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That is it!

 

West Coast Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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gchapman
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Posted by gchapman: Tue. Nov 19, 2019 - 08:28 PM (Reply to #5)
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Future Electronics

https://www.futureelectronics.com/search/?text=2832hsweg-04&q=2832hsweg-04:relevance:category:oled&selectedTab=products&selectedParentCategory=oled

via UG-2832HSWEG-04 WiseChip | Octopart

maybe Monochrome / Area Color Displays - WiseChip Semiconductor Inc. (third row, left two)

AT02667: XMEGA-E5 Xplained Hardware User's Guide (top of page 10)

 

"Dare to be naïve." - Buckminster Fuller

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david.prentice
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Posted by david.prentice: Tue. Nov 19, 2019 - 10:07 PM
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The 128x32 SSD1306 displays are easy to use.   I2C or SPI.  

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ka7ehk
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Posted by ka7ehk: Wed. Nov 20, 2019 - 01:17 AM
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Thanks for the suggestions folks. That should certainly get the juices flowing.

 

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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scdoubleu
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Posted by scdoubleu: Wed. Nov 20, 2019 - 08:35 AM
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You may need to consider mitigation to avoid screen burn - OLEDs are very susceptible if used with static images. Something I learned from experience...

 

Steve

Maverick Embedded Technologies Ltd. Home of wAVR and Maven.

wAVR: WiFi AVR ISP/PDI/uPDI Programmer.

Maven: WiFi ARM Cortex-M Debugger/Programmer

https://www.maverick-embedded.co...

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avrcandies
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Posted by avrcandies: Wed. Nov 20, 2019 - 10:28 AM
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If you go back to Amazon they have several sizes, shapes, colors, etc to choose from:

 

https://www.amazon.com/s?k=Inteltronic&i=industrial&ref=nb_sb_noss_2

 

A tasty oled:

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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awneil
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Posted by awneil: Wed. Nov 20, 2019 - 11:04 AM
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https://www.microchip.com/developmenttools/ProductDetails/atoled1-xpro

 

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
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  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillator: https://www.avrfreaks.net/comment...
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ka7ehk
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Posted by ka7ehk: Wed. Nov 20, 2019 - 05:31 PM
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Hmmm, it appears that the nice molded housing and such is a custom product. Ease of mounting was one of the things that made the unit on the Xplained board so attractive.

 

Now, I am confused. The BOM for the Atmel OLED board references WiseChip in Taiwan; their website does not know anything about the PN on the Atmel BOM. The Adafruit document that JGM linked talks about "Univision" and does not quite match what I think the display is.

 

Darn!  Anyway, it is now looking less attractive due to display power consumption. Foo!  Thanks for all the great suggestions and input, though. It all might be useful in the end!

 

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

Last Edited: Wed. Nov 20, 2019 - 05:38 PM
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jgmdesign
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Posted by jgmdesign: Wed. Nov 20, 2019 - 05:38 PM
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Jim

Take a look at the last link in post #6.  YOu should be able to mount that somehow.  Or 3D print a bracket.

 

East Coast Jim

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

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DocJC
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Posted by DocJC: Wed. Nov 20, 2019 - 05:43 PM
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Do you need color?

 

The Nokia 5110  is easy to drive, and there are many suppliers that package in on a small breakout PCB, as shown.

I have a drawer full of them, as they have replaced Char LEDs in many of my projects.

 

Banggood Electronics has them for $2.35 each, Qty 10.

You might even find them for less elsewhere.

 

JC

 

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ka7ehk
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Posted by ka7ehk: Wed. Nov 20, 2019 - 05:51 PM
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That looks really attractive. Sparkfun quotes the size as 45mm x 45mm. Is that the board size or the outer dimension of the module?

 

Thanks

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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awneil
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Posted by awneil: Wed. Nov 20, 2019 - 06:18 PM (Reply to #17)
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ka7ehk wrote:
Is that the board size or the outer dimension of the module?

I often find that's a difficult question to find the answer to!

 

angry

 

 

Top Tips:

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  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillator: https://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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gchapman
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Posted by gchapman: Wed. Nov 20, 2019 - 06:25 PM (Reply to #14)
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ka7ehk wrote:
Anyway, it is now looking less attractive due to display power consumption.
Timed load switch the OLED if the display on/off operation is available to the operator.

Sharp Memory LCD may be an alternative to Crystalfontz OLED though

  • reduced contrast
  • larger

 

Products - Sharp - Memory LCD

 

https://github.com/adafruit/Adafruit_SHARP_Memory_Display/blob/master/Adafruit_SharpMem.h

versus

https://github.com/ganzziani/Xproto-Watch-Bootloader/blob/master/GccBoardProject1/src/display.h

(each pixel is equivalent to one bit of write-only volatile storage, one pixel row for each active SPI chip select signal; therefore, regions instead of raster)

Gabotronics - Development Boards and Electronic Kits

 

edit : versus

Sharp Memory LCDs: Theory, Interfacing, and Programming | Application Note

by Ken Green, Sharp Microelectronics of the Americas

[page 5, right column]

SOFTWARE IMPLEMENTATION

...

Sample code for interfacing with the panel is shown below.

...

Storing all of the data for all lines is more memory intensive, but can be easier to implement. If the images are more text based, and maybe only a few lines change at a time, recreating a few lines of text will require less processor memory. The memory will of course need to be RAM memory.

...

via Sharp Product Specifications and Documentation - Sharp

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Wed. Jan 1, 2020 - 10:23 PM
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awneil
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Posted by awneil: Wed. Nov 20, 2019 - 06:27 PM (Reply to #14)
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ka7ehk wrote:
now looking less attractive due to display power consumption.

What's your target there?

 

Have you considered the so-called "ePaper" displays  ... ?

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillator: https://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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DocJC
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Posted by DocJC: Wed. Nov 20, 2019 - 07:35 PM
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For the little monochrome GLCD, Nokia 5110, in post #16, I have a large batch that say "HXE" on the top right corner of the Red PCB, and their measurements are:

The actual GLCD module:

33 mm Tall, x 39 mm Wide.

 

The Red PCB is:

47 mm Tall x 45 mm Wide.

 

An older batch, without the "HXE", has a PCB of:

42 mm Tall x 44 mm Wide.

 

There are many sellers for this, and most ( ? ) have a pretty "standard" pinout.

 

There are, however, at least two different versions of the PCB with different pinouts.

So, although this display and the PCB breakout have been around for many years, you do have to pay attention to the actual pinout if you make multiple orders.

 

SparkFun sells then for $10 each, but I'm sure they buy them in bulk from other suppliers.

 

eBay has them for $1.42 USD and up.

 

Although I understand the reluctance to purchase a component off eBay for a commercial product, I'd at least look at the eBay listings.

I'm guessing SparkFun buys them off eBay, or directly from a Shenzhen, China supplier, which is where I think most of these come from.

 

JC

 

Edit:

I wrote my driver, (Basic), with the 84 pixels across, and 48 pixels down, with the wider silver frame edge at the top.

Depending upon what you want to display, and your layout, you could easily mount if "sideways", if desired.

 

 

 

Last Edited: Wed. Nov 20, 2019 - 07:38 PM
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ka7ehk
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Posted by ka7ehk: Wed. Nov 20, 2019 - 08:17 PM
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ePaper is attractive. AdaFruit has a nice small module.

 

Also, AdaFruit says that all of the Nokia 5110 displays are salvaged from discarded phone and may have wear marks. Wear does not bother me, but the finite life of the supply stream does. Of course, all components have a potential supply life. But the 5110 situation seems a bit more uncertain at most. As an indicator, AdaFruit is currently out of them.

 

Its pretty clear that there are a variety of options for a really small display. At this point, I am simply checking the options to make sure that my parent board can support them, that the daughter board area is large enough, there is enough power, and that there are enough pins for a proper interface.

 

Thanks, everyone, for the great ideas (and caveats).

 

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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jgmdesign
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Posted by jgmdesign: Wed. Nov 20, 2019 - 10:01 PM
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Jim,

I forgot I use these quite a bit on repairs I do for another company:

 

https://www.digole.com/index.php...

 

I have a couple here if you want one to try out.  THe display shows up more grayish-white than blue but I suspect you can order the one you like

 

ECJ

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

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ka7ehk
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Posted by ka7ehk: Thu. Nov 21, 2019 - 01:58 AM
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Got to see how that squares with available space. Interesting, though.

 

West Coast Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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avrcandies
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Posted by avrcandies: Thu. Nov 21, 2019 - 04:55 AM
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here ye a bunch more

 

https://www.crystalfontz.com/products/smallest-lcds-oleds-and-epaper-displays.php

 

note--some of these little disps are flexible

https://www.dx.com/p/waveshare-212x104-2-13-flexible-e-paper-display-hat-for-raspberry-pi-2051176.html?tc=USD&ta=US&gclid=EAIaIQobChMIvZ7fpsH65QIV0YZbCh1vSw1NEAQYCiABEgLCKfD_BwE#.XdYYhVdKhaQ

 

 

this seems to be quite a feat! 

https://www.ideaconnection.com/new-inventions/the-smallest-lcd-in-the-world-02530.html

 

 

 

 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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gchapman
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Posted by gchapman: Tue. Dec 17, 2019 - 10:53 PM
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Color OLED Breakout Boards - Newhaven | Mouser

...

These breakout boards feature FAN5331SX on-board booster circuit and jumper option to bypass booster circuit and provide VCC directly.

...

FAN5331: Adjustable, 1.6MHz Boost Regulator with 20V Integrated FET Switch

 

"Dare to be naïve." - Buckminster Fuller

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ka7ehk
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Posted by ka7ehk: Tue. Dec 17, 2019 - 11:08 PM
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Thanks

 

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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gchapman
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Posted by gchapman: Tue. Jan 14, 2020 - 10:57 PM (Reply to #22)
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ka7ehk wrote:
..., but the finite life of the supply stream does.
Can begin with your preferred display software, what display controllers plus displays it has drivers for, then back out a manufacturer or vendor.

u8g2setupcpp · olikraus/u8g2 Wiki · GitHub

where NHD may be Newhaven Display International, Inc., High Quality Standard and Custom LCDs and VFDs.

via

Home · olikraus/u8g2 Wiki · GitHub

U8g2 is a monochrome graphics library for embedded devices.

...

U8g2 also includes U8x8 library.

...

U8x8

  • Text output only (character) device.
  • Only fonts allowed with fixed size per character (8x8 pixel).
  • Writes directly to the display. No buffer in the microcontroller required.

...

 

edit : OLED controllers :

SSD1306

SSD1309

SSD1316

SSD1317

SSD1322

SSD1325

SSD1326

SSD1327

OLED Display Driver IC | Advanced Display | Solomon Systech Limited

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Tue. Jan 14, 2020 - 11:15 PM
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