Didnt get a chance to write an article about it. My original goal was to create a bunch of these (30x40 units) and hang them up on a wall like a large tile screen.
A controller would update this tiled wall dynamically.
Also the look of the frames were intended to disguise as regular photo frames.
https://imgur.com/a/NoTr8XX / https://hackaday.io/project/190478-hyepaper