Sprites mods – A WiFi coloration Eink image body
Some time in the past, our baby was born. As sadly her (great-)grandparents are positioned
considerably unfold out over the globe, real-life visits cannot occur too typically. Clearly,
video calling is a factor these days, so we preserve in touch. Nonetheless, I wished everybody to
additionally have the ability to see her once we weren’t on-line collectively. So I believed: why not make
an image body round a coloration show and a WiFi chip? Particularly with the little
one rising so quick, it will be good to ship a brand new photograph on daily basis and have it at all times
present a brand new and up-to-date image.
You in all probability have seen E-ink shows by now: if not in an Book-reader, then certainly
in some native grocery store or different store the place they changed the outdated paper worth tags.
They’re nice for displaying static pictures as they maintain their most up-to-date picture
with none energy draw. Most of those screens are black-and-white, with generally purple
or yellow thrown in as an additional color for good measure. These are good, however
a black-and-white image does not do justice to the colourful colours of a cheerful child
derping round along with her colourful toys.
On the level of writing (early 2023), some E-book-readers with coloration screens are lastly
beginning to seem. The standard of them appears good, with colours approaching these of
a newspaper. Sadly, they’re costly, and the screens themselves do not appear
to be out there as spare elements but, so there is no probability of simple re-use in a DIY undertaking.
Nevertheless, there was one kind of coloration E-ink show that has been out there to be used in DIY
initiatives. It appears largely offered by Waveshare, a Chinese language firm catering to the maker
market, and the commonest one is a 5.65 inch 7 coloration 640×448 unit. With solely 7 colours and a refresh
time of a few minute, it appears meant to be the ‘huge brother’ to these worth
tags: displaying static info with the colours used to e.g. have some flat background
colours. They’re definitely not meant to breed photorealistic pictures.
That may be a bit unlucky: an Eink show makes for an ideal ‘printed photograph’ simulacrum because it does not
require any backlight and is totally static. I am not the one one who thinks so, and
a fair
amount
of people already had an try at utilizing dithering to make this display
into one thing that may show footage with some constancy. That is my try at doing so.
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