epdiy VS inky-impression-slideshow

I think the world of homebrow eInk devices is set to take off.

The problem right now is that while the screens have come down in price considerably, the driver hardware remains expensive and proprietary. If you want to build something for cheap, you'll be designing the PCB from scratch (as this author did).

Enter EPDIY, which brings wide support to a variety of screens using commodity hardware. It's still under development, but it's looking really promising: https://github.com/vroland/epdiy

It's based on the old version of EPDiy E-Paper Driver. https://github.com/vroland/epdiy

Looking at the repo, only this example is partially configured for platformio. https://github.com/vroland/epdiy/blob/master/examples/lilygo-t5-47-epd-platformio/platformio.ini

https://github.com/vroland/epdiy this might help you.

I came across epdiy-project recently. It might be helpful. https://github.com/vroland/epdiy

Take a look at this library - https://github.com/vroland/epdiy it may have support for whatever display and driver chip you are using.

This is the same e-ink device I believe that's in the Pimoroni Inky Impression.

I've written a Python program that anecdotally fixes the bias caused by the display for blues and greens, and dithers using an Atkinson dither. The code is based on some older Java implementation I wrote, but this is more succinct (and has a colour fix) if you are considering a port to C (entry point diffuse_image()):

https://github.com/KodeMunkie/inky-impression-slideshow/blob...

The fix is to define the ink's blue as a slightly different hue than the device specifications, which tends to over emphasise it - improving it - when it comes to shades like royal blue (which the display can't achieve).