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Building an e-ink weather display for our home

kimmo.blog

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Re: Building an e-ink weather display for our home

#81

I got a 7.5 inch wave share displaying my todos from todoist, today. Very easy. A few gotchas. I ended up ordering a case from thingiverse because the case wave share sells doesn't fit the HAT model. My goal is to not look at my phone in the morning, so having my todos on eink is nice. When I used paper I ended up with paper lists in 7 places.

To really scale I think the next step is something that could be run off an esp32, because power and cost are the current scaling limits.

For anyone who finds this later:

Home assistant integrates with esphome which supports waveshare if you get the esp32 interface rather than the raspberry pi HAT.

And todoist integrates with home assistant.

Basically all via yaml.

Re: Building an e-ink weather display for our home

#82

Very cool. Shamelessly linking my own weather display: https://github.com/Mrjohns42/WeatherDash Supporting EINK on mine could potentially help make it more visually compelling like yours, but I've done other EINK display projects in the past (see https://github.com/Mrjohns42/DoggieClock ) and screen burn-in was definitely an issue.

> and screen burn-in was definitely an issue. I find this very surprising, I was aware that you can sometimes get ghosting-effects, but I did not think permanent burn-in was possible on EINK tech.

Burn-in is very possible. It is ink particles inside a solvent. Drive it the wrong way and you'll damage the ink or the solvent. Just like LCD where if you drive it the wrong way, the liquid crystal gets damaged. The difference is LCD voltage waveforms are built into hardware and are much simpler since there's no moving components.

Re: Building an e-ink weather display for our home

#83

>The picture is from the library's electronics room which has cool gear such as laser cutter, 3D printer, and much more. Amazing! I've never seen anything comparable in a U.S. library. What a wonderful resource. How do they maintain it?

Check out BLDG 61, part of the Boulder Public Library, if you ever find yourself in the area: https://boulderlibrary.org/bldg61/

Re: Building an e-ink weather display for our home

#85

I'm looking for a good e-ink display with touch input. I want to setup an eink calendar that can show the view for the current week, month and year and allow clicking on an event to see notes if there are any.

Maybe you can add a set of buttons ?

Re: Building an e-ink weather display for our home

#87

I have no idea how this is not get a commercial product. Our Google Nest Home Max Hub Whatever screen that I got free from CES is garbage at displaying useful information. The weather info can’t sync at least once per week, requiring a restart. It’s literally just our bathroom clock / Bluetooth speaker because that’s all it’s good for. It cannot sync to Google Apps (business account) calendars. The proposed solution…

https://thingpulse.com/product/4-2%e2%80%b3-espaper-plus-kit... ?

Re: Building an e-ink weather display for our home

#88
post #22

Earlier quoted context omitted.

I'm super excited to see the price on panels beginning to drop. $200 for a 10" panel is, for an old guy, exciting. Once they're cheap-enough, the manufacturers will come.

Look up “field monitor” on Amazon, there are some for under $100 (usually 7” 720p native res panels). A lot of them have 1/4” or 3/8” stud mounts for mounting as well, some can accept common batteries like LP-E6 for portable usage, some are touchscreens with USB etc etc. Pretty hacker-friendly hardware. I keep a couple around for pis and terminal access to servers.

Those things don't seem to be e-ink displays, which (imo) makes a huge difference in applications like this.

Re: Building an e-ink weather display for our home

#89
post #33
post #20

If this kind of device would come in 'off the shelf' ready to go, I'd buy one. I think e-Ink screens are really attractive to be hung on the wall. I hope we're going to see such device come to life; my bet is some successful kickstarter followed by an amazon clone with alexa built-in :vomit-face: +1 for a simple device that does one thing, and does it well.

Someone on HN was manufacturing one that showed your Google Calendar: https://www.invisible-computers.com/

It can be configured to show weather.

Re: Building an e-ink weather display for our home

#90
post #33
post #20

If this kind of device would come in 'off the shelf' ready to go, I'd buy one. I think e-Ink screens are really attractive to be hung on the wall. I hope we're going to see such device come to life; my bet is some successful kickstarter followed by an amazon clone with alexa built-in :vomit-face: +1 for a simple device that does one thing, and does it well.

Someone on HN was manufacturing one that showed your Google Calendar: https://www.invisible-computers.com/

That is not battery powered and judging by the lack of side photos I imagine it is unsatisfyingly thick.
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