Micropython driver for e_ink display "Waveshare 7.5inch HD e-Paper HAT (B) 880x528".
I usually took drivers for electronic paper here https://github.com/mcauser/micropython-waveshare-epaper , but this time the driver I needed was not there. I had to do it myself. Perhaps this will save you time.

chicory-ru/epd7in5b_HD
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