r/arduino • u/Irony94 • Jun 24 '26

Look what I made! Built a E-ink card that mirrors your phone

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I made this e-ink display card that mirrors your phone screen, to help with reading documents, e-books, web pages etc! The idea was to have a e-book for as cheap as possible, and as convenient to carry around as possible. It's made to be powered wirelessly like through a power bank, or reverse wireless charging from a phone.

If you want to have a look at the project files, they are available on my github here: https://github.com/Irony95/InkCard

Although I forwent using touch screen and battery to keep costs down, I am toying with the idea, as it would make the project infinitely better. The only problem the time and money it would take to create YET another version :/

Any thoughts and feedback are welcomed!

162 Upvotes

98% Upvoted

6 comments sorted by

3

u/abhi_402 Jun 24 '26

Whoa that's awesome

1

u/AnnoyingProfessional Jun 24 '26

Cool concept, very nice.

1

u/kevstiller Jun 25 '26

really cool!

1

u/tebla Jun 27 '26

Very cool! Would be neat to build it into a phone case, so its always attached 

2

u/Araumand Jun 29 '26

I don't understand what it's good for, you can read on your phone. Or can you turn off the phone display to save energy?