Fast ~510 ms B/W partial refresh for GDEY042T81 / SSD1683 e-paper - custom 227-byte waveform LUT as a GxEPD2 subclass
arduino esp32 eink epaper e-paper epd fast-refresh sub-second gxepd2 ssd1683 partial-refresh gdey042t81 weact-studio waveform-lut
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Updated
Jun 1, 2026 - C++