Someone have info, project or something to help about EPD display's. I hate the use of ARDUINO IDE, I'm an old man that want to understand the code, I don't like the ARDUINO "magic", because it use a lot of space and is very difficult to optimize

[TDK]

There's some stuff out there on "stm32 epd". Here's one:

https://github.com/soonuse/epd-library-stm32

[PGinh.1]

Thanks. It does not have the size that I need 3.7

Anyway, I'm going to start with this.

[Tesla DeLorean]

Going to need be more specific about the make, model, part of the screen and the controller ICs involved.

If you can get those, you can perhaps unpack what the Arduino libraries are doing, and what portions are need to initialize the display, and transfer frames.

[PGinh.1]

Yes, thank you. I bought a NUCLEOF411 (maybe too big for this) and the EXT3 module with EPAPER 3,7" for PermasiveDisplay.

I need to Test, set Up and include some code.

I develop with Microchip uC since 18 years (started with assembler). This is my first time with STM

[Tesla DeLorean]

This?

https://www.tme.eu/Document/d3f49245a0afc5ca823e68cceafbb59f/WSH-18057.pdf

If using I2C, dig up some STM32 I2C examples