Using a 2.9 inch E-Paper Display with ARDUINO

[Marc DANIEL]

why not try with an esp, if you have one... then you'll have about 2MB of flash!

Sorry, I don't have that. I just have a small RaspBerry Pi Pico board but the connections are too complex to make with the E-Paper module

 

[Marc DANIEL]

It's too bad I dont own a e-ink display.... I'm getting tickled by this thread

If you buy an E-Paper module, there are some with a barcode allowing you to control them with specific Android or other applications.
Maybe there are solutions with B4A rather than B4R?

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I noticed that this Arduino sketch is displayed on my 2.9 inch electronic label as well as on the 2.66 inch electronic label, the display is automatically proportioned to the screen used

 

[Cableguy]

If a B4A solution is available, the e-ink surely has a middle ware, being it proprietary of not... I see e-ink displays all the time in our supermarkets, and I saw how they change thair displays using what I guess is either BLE either Infra-Red coms. the display by itself does nothing but show what it was programed for

 

[Marc DANIEL]

If a B4A solution is available, the e-ink surely has a middle ware, being it proprietary of not... I see e-ink displays all the time in our supermarkets, and I saw how they change thair displays using what I guess is either BLE either Infra-Red coms. the display by itself does nothing but show what it was programed for

OK, you're right, they have computer systems that allow them to change prices in seconds on hundreds of electronic labels.

And now there are electronic labels with 4 colors (black, white, red and yellow)

Pricing in a supermarket​

 

[Marc DANIEL]

Klaus, you who are trilingual, you will be able to compare the 3 instructions (E-books) provided by AZ-Delivery from whom I purchased my 2.9 inch E-Paper electronic label:
- The instructions in English are 15 pages
- The instructions in German are 17 pages
- The instructions in French are 24 pages long and include more documentation than the other two. For what ?
And in fact the Arduino sketches proposed by the German and English instructions are the same (Text management only). On the other hand, the French instructions offer an arduino sketch concerning the images!!!

English, german and french instructions


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I have attached the 2 libraries used with the arduino sketch, by opening them with NotePad ++, you can clearly see the contents. In fact, you should be able to convert these files to be able to use them with B4R

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[Cableguy]

And now there are electronic labels with 4 colors

On Amazon I saw a 400x320 7 color e-ink display... the price, though.... aouch!!!!

 

[amorosik]

If you buy an E-Paper module, there are some with a barcode allowing you to control them with specific Android or other applications.
Maybe there are solutions with B4A rather than B4R?

View attachment 150553​

Which model exactly is your display?

 

[Marc DANIEL]

Personally, I currently have 2 models of electronic labels:
1- The 2.9 inch E-Paper module that I can use for the moment only with ARDUINO IDE

2- The 2.66 inch Pico-ePaper module which works with the RaspBerry Pi Pico mini-card but I have problems with reliable connections between these two elements and this hardware is mainly dedicated to the Python language

 

[Marc DANIEL]

I add that it is possible to select the RaspBerry Pi Pico mini-card with B4R but you must first have it installed in ARDUINO IDE for it to appear in the B4R list

 

[Cableguy]

Yes, that is classic b4r setup... it reads the possible usable boards from the arduino installed ones...

 

[Marc DANIEL]

I try to apply the method recommended by EREL to create a library for B4R but I keep getting the same error messages : "Error parsing: _page_height = page_height;"

 

[Marc DANIEL]

I received my Arduino MEGA2560 board yesterday and indeed, I noticed that certain ARDUINO sketches which did not work on UNO work on MEGA2560.
Moreover, you must read the “README.md” file located at the bottom of the list of ARDUINO sketches.

 

[Marc DANIEL]

Electronic label maker Waveshare offers a tool to create our own images.
I am currently testing this tool >>> here

 

[klaus]

Hi Marc.
Sorry for answering only today, but I am on travel in your country in Bessans Haute Maurienne for snowshoe hiking nice Saturday.
I had a look at the three pdf guides.
The English and German guides are the same, but in the French guide they use another library from Github Waveshareteam.

I did not yet have a look at the library.

 

[Marc DANIEL]

Pas de souci Klaus, profite de la neige et prend ton temps. De toutes façons, il n'y a pas le feu au lac !!!
Je me bats toujours pour créer une image compatible pour l'afficher sur l'E-Paper 2.9 pouces. Je suis un persévérant, je n'abandonne pas facilement ...
Obstination stérile peut-être ?

 

[DonManfred]

Obstination stérile peut-être ?

this is the english part of the forum.

Please write - at least - english here

 

[Marc DANIEL]

this is the english part of the forum.

Please write - at least - english here

Sorry DonManfred !

It was a response addressed to my old brother Klaus who speaks three languages...

"No worries Klaus, enjoy the snow and take your time. In any case, there is no fire at the lake!!!
I'm still struggling to create a compatible image to display on the 2.9 inch E-Paper. I'm a perseverant, I don't give up easily...
Sterile obstinacy perhaps?"

 

[Daestrum]

Have you looked at this https://github.com/bitbank2/epd_image it explains the different image layouts for e-paper display.

 

[Marc DANIEL]

Have you looked at this https://github.com/bitbank2/epd_image it explains the different image layouts for e-paper display.

OK, thanks, I'll go take a look at it.

 

[Marc DANIEL]

Let's summarize the situation: We still don't have a library suitable for B4R. I have tried, without success for the moment, the three methods recommended here. Either I'm getting non-compatible files, or I'm making errors, or I'm missing code or side files...

1- Online tool recommended by AZ-DELIVERY
2- Online tool recommended by the manufacturer Waveshare
3- Proposal from our colleague Daestrum

You should obtain a file like imagedata.cpp: