can these screens be used with arduino?

Using Arduino Displays
#1

hello everyone.
i have a project that needs to use a round 1.2 inch color lcd/oled like these:

https://www.alibaba.com/product-detail/1-2-inch-tft-round-lcd_62072448769.html?spm=a2700.7724838.normalList.47.65ec7901pbqXWE

they need to recieve an image or animation drawn by arduino via spi.

getting information from the vendors is really hard, as these screens usually sells as replacement for smartwatches, so i turn to you:

can these screens work with a 328p or any other arduino mcu?
i know a library needs to be written and i do plan to hire a developer to do so. but im not so sure it can even be done.

thanks in advance.

#2

Yes, there are several libraries for 240x240 ST7789 SPI displays.

No, a Uno has got 5V GPIO.
You need a proper 3.3V Arduino e.g. Zero, Due, STM32, Teensy3.x, ...

David.

#3

hi thank you for your ansewer.

what about the AUO W022 ASIC?
the datasheet says it has spi but couldn't find any library.

also, can they be connected streight to the arduino? or do i need to rig some circuit?
im asking because everytime i see "arduino ready" lcd modules, they always have some extra resistors and capacitors on the board like this one:

750×750 91.8 KB

is it necessary?

#4

The Sitronix ST7789 controller is no problem. I have the datasheet.

If you can get a datasheet for the AUO W022, I will be happy to write a driver. I suspect it obeys regular User commands. I just need the Manufacturer commands.

If you are intending to buy the screen, ask the vendor for the full W022 datasheet. Not the 24-page "panel" datasheet.

David.

#5

that’s great, i already ordered 1 screen, and im waiting for the adapter boards.
i can send it to you also.
datasheet:
https://hz-icbuim-file.oss-cn-beijing.aliyuncs.com/file/47feada1c3dc363bafc6f8c6e65d4225.pdf?Expires=1574357210&OSSAccessKeyId=LTAIxlzvmECyZvmX&Signature=3g1ygO1xBmjVWr7yZO%2BWHuQDnIE%3D&response-content-disposition=filename%3D"RM67162%20DataSheet_V0.5_20160215.pdf"

#6

Thanks for the RM67162 datasheet. It is not the W022 datasheet.

The RM67162 is different to the conventional controllers e.g. ILI9341, IL9486, ...
It will require some testing.

David.

#7

hmm, the seller told me it's the same:

#8

That is good news. Raydium datasheets are fairly easy to understand.

Please realise that this is new (to me). There will be a test-develop-test-cycle that would benefit from both using GitHub.

David.

#9

Wow! Nice screen. I assume the device can be wired with an ESP8266. Worth a try.

#10

haimbilia:
that's great, i already ordered 1 screen, and im waiting for the adapter boards.
i can send it to you also.
datasheet:
https://hz-icbuim-file.oss-cn-beijing.aliyuncs.com/file/47feada1c3dc363bafc6f8c6e65d4225.pdf?Expires=1574357210&OSSAccessKeyId=LTAIxlzvmECyZvmX&Signature=3g1ygO1xBmjVWr7yZO%2BWHuQDnIE%3D&response-content-disposition=filename%3D"RM67162%20DataSheet_V0.5_20160215.pdf"

I'm sorry to revive this old thread, but could you upload this PDF again so that we can all download it? The link is expired :frowning:

Edit: I've found the datasheet online! This is it: RM67162 DataSheet_V0.5_20160215.pdf - Google Drive

Thanks!

#11