alt Hacker Newse-ink is so much fun, especially when combined with ESP32 or BTLE boards. I currently have 4 around my house displaying book quotes that I've highlighted in KOReader and they bring me joy each time I see them. They are simple and do one thing very well.
I just got and setup a BTLE e-ink driver the other day and according to my calculations it will last _years_ on a single charge (2000mAh) even with multiple refreshes per day (crazy compared to the Wifi ones). Year+ lifetime completely changes the calculus for where to put these IMHO.
I'm considering designing a multiple-screen "art" piece to hang on my wall and playing around with various ideas (on both content and design).
LLMs + 3D Printer + e-ink is my new favorite hobby.
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Years on a wall mounted eink screen sounds super interesting. What are you using for the power delivery/battery side of that setup?
When it does run out, are you able to replace the battery? Or is it something way more painful than that?
Thanks for speaking to the battery question; I'm very interested in how to run this kind of thing (the display portion at least) cordlessly too, especially when lipo pouches in that range are so dirt cheap.