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Replying to @Terceranexus6 and @Hacksterio

I’ve been using this one and can recommend! The default mode takes maybe 2 seconds, but you can get it to 1 second with custom waveforms. It also does grayscale! Note though this only applies to the monochrome version; the tri-color version is much slower. https://zh-tw.buyepaper.com/products/42inch-e-inkanel-spi-interface-buy-eaper-display

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