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bhelkey • today at 8:26 PM • 0 replies • view on HN

You can buy a 13" color e-ink display for ~$250, or a 7" e-ink display for ~$60. These can be placed in a frame for a couple bucks more [2].

Two things that I did not anticipate:

1: Refresh time is a lot longer for color displays (~20s) as compared to black and white displays (~0.5s).

2: Stock images tend to use cartoons. There is a reason for that. These displays require dithering which seems to work a lot better with a limited color palette, flat areas, and bold edges.

[1] https://www.waveshare.com/13.3inch-e-paper-hat-plus-e.htm

[2] https://www.waveshare.com/esp32-s3-photopainter.htm