That's cool. Why not battery powered though? That seems like one of the biggest benefits of e-ink and also a wire coming out of your calendar seems like a pretty huge drawback.
If I make it battery powered it needs to run on a charge for a few months, otherwise it becomes a hassle. And then, it must be possible to charge it easily.
Also, space. Right now the calendar is 7mm think and I think it won’t look as nice on the wall if I make it much thicker.
There are a lot of edge cases to consider. It’s definitely on my wish list but I cut it out for simplicity, for now.
Love the wood bezel though; looks really nice.