Hey I have watched couple of your videos while trying to understand how to connect a label that I have but still cant find a similar diagram for the display that I have. The labels that I have are RAM only and I reset them by removing the battery so I want to use the board to connect external MCU like esp32 to control it (display is also soldered to the board). Display flex cable is marked as: HINK-E042A33-A0 / date:2022.07.08

I happend to acquire 4.2" HINK-E042A13 and went for your library but it seems like it's having some compatibility issues with ESP32. Text and circle appear distorted - missing pixels. I tried also 2.9" HINK-E029A10-A1 but same issue, so it's not the display but probably ESP32. I don't have any arduino at hand to try it out (huh) but I suspect it's some SPI timing on ESP32. The extension for GxEPD (https://github.com/mcer12/GxEPD_HINKE029A10_plugin) that I made based on your work works perfectly fine with both displays but I have issues adjusting resolution for the 4.2".