The html browser on e-ink kindles is absurdly terrible (I think intentionally to discourage using the 'free' 3G for surfing). You may be able to get it to work,

The html browser on e-ink kindles is absurdly terrible (I think intentionally to discourage using the 'free' 3G for surfing). You may be able to get it to work, but godspeed. While not e-ink, I bought a handful of cheap used iPad-minis and mounted them on the wall. Serve them a little HTML UI from a raspberrypi in the closet. I tried a cheapo kindle fire, but it wasn't possible to get the browser to go "full-screen". I get the appeal of e-ink for a dashboard, but having fast-refresh, color, fast touch-response, a modern browser, and other things make for a much more pleasant UX (at the expense of being bright and having to worry about powering the thing).