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Paperd.Ink – A hackable e-paper display

paperd.ink

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Re: Paperd.Ink – A hackable e-paper display

#61

Post by marcinzm »

ospider wrote: post #54
robertlangdon wrote: post #34

UPDATE: Unfortunately our website crashed and we're fixing it. Youtube: https://www.youtube.com/watch?v=srrAUOsWHMs&t=3s User Research Typeform: https://prasad463729.typeform.com/to/cmp81P Hackaday: https://hackaday.io/project/168668-paperdink Github: https://github.com/rgujju/paperdink Specs: Monochrome, 4.2", 400x300 resolution We're looking at a selling price of $59 currently however there's a lot of scope to impr…

This eink display[1] from taobao is 7.5" and 800x480 resolution with a price of CNY 375(USD 53.67). 1. https://detail.tmall.com/item.htm?id=611687850885

Also available on ebay for 59.99 along with hardware to connect it to a raspberry pi.

edit: Of course all you get is the display. Paperd comes with a battery, esp32, buttons and so on plus I'm guessing examples of how to code the things.

Re: Paperd.Ink – A hackable e-paper display

#62

Post by OJFord »

robertlangdon wrote: post #34

UPDATE: Unfortunately our website crashed and we're fixing it. Youtube: https://www.youtube.com/watch?v=srrAUOsWHMs&t=3s User Research Typeform: https://prasad463729.typeform.com/to/cmp81P Hackaday: https://hackaday.io/project/168668-paperdink Github: https://github.com/rgujju/paperdink Specs: Monochrome, 4.2", 400x300 resolution We're looking at a selling price of $59 currently however there's a lot of scope to impr…

Have you shared this on /r/HomeAutomation and /r/HomeAssistant?

Much less technical crowd in general than HN, but framing old tablets (as informational displays of 'smart home' state etc.) is quite popular, and I think your project is much more suited to it: much lower-power (such a device is only useful if always-on really), and much less distracting (e-paper not glaring bright colourful iPad or whatever).

Looks great, I'd definitely be interested at $59 (in £) if it's sufficiently/easily enough hackable!

Re: Paperd.Ink – A hackable e-paper display

#64

Post by bsdubernerd »

playpause wrote: post #58
robertlangdon wrote: post #48

Earlier quoted context omitted.

That was surely insightful. We'll test with a white LED. And we're working on the binaries and GUI, it seems like current hardware won't be able to serve web pages.

Why do you need an LED at all?

Fully agree. A white LED might be better, as long as is for notifications only. There's no need for having a constant light otherwise (that's the beauty of eink)

Re: Paperd.Ink – A hackable e-paper display

#65

Post by Fnoord »

missosoup wrote: post #13
dan1234 wrote: post #9

Earlier quoted context omitted.

Last time I looked into this, for a potential project, I found Waveshare seem to be the leaders for the hacker/hobby space. They’ve got a nice 12.5” display (1304x984) @ $170, which is pricey but big enough for league tables. https://www.waveshare.com/product/displays/12.48inch-e-paper...

The refresh times on waveshare panels are bad enough to make them useless for most interesting applications. That particular panel takes 16s to refresh.

Because it has 3 colors. Sometimes you can put them in two colors. For the Pwnagotchi project, the consensus has been that the Waveshare B&W v2 is the best [1].

Based on my own experience (I have one) I can say it has a high enough refresh rate, and little ghosting (none is impossible as costs too much battery to do full refresh).

Also, the UPS Lite, also from China (AliExpress or whatever), is excellent.

Do keep in mind this is a specific/different project, with a much smaller screen, meant to be portable (for on the go).

[1] https://pwnagotchi.ai/installation/#color-vs-black-white-e-i...

Re: Paperd.Ink – A hackable e-paper display

#66

Post by bsdubernerd »

robertlangdon wrote: post #16
Reventlov wrote: post #12

Earlier quoted context omitted.

Well, it's 3d printed, so, yeah, probably shitty because printed on the faster settings.

Hey, Yes it 3D printed, we wanted to test the prototype. If you have any suggestions do let us know. Thanks!

You should expect much better results for a 3d print nowdays.

For a prototype which is expected to drive some interest 3d printing is fine, but print at 0.15 layers and do a couple of runs of sanding combined with filler before applying some paint. The case will look just like a regular finished product. I do this for custom projects where I want a perfect finish and/or show-off prototypes.

The layering is really annoying for some people.

For a final product, depending on the sale numbers, injection molding might be the only option. SLS and MJF give a very nice result, but the price range where they're economically viable is very narrow.

Re: Paperd.Ink – A hackable e-paper display

#67

Post by weejewel »

OJFord wrote: post #62
robertlangdon wrote: post #34

UPDATE: Unfortunately our website crashed and we're fixing it. Youtube: https://www.youtube.com/watch?v=srrAUOsWHMs&t=3s User Research Typeform: https://prasad463729.typeform.com/to/cmp81P Hackaday: https://hackaday.io/project/168668-paperdink Github: https://github.com/rgujju/paperdink Specs: Monochrome, 4.2", 400x300 resolution We're looking at a selling price of $59 currently however there's a lot of scope to impr…

Have you shared this on /r/HomeAutomation and /r/HomeAssistant? Much less technical crowd in general than HN, but framing old tablets (as informational displays of 'smart home' state etc.) is quite popular, and I think your project is much more suited to it: much lower-power (such a device is only useful if always-on really), and much less distracting (e-paper not glaring bright colourful iPad or whatever). Looks gre…

Check this out: https://homey.ink

Re: Paperd.Ink – A hackable e-paper display

#68

Post by OJFord »

weejewel wrote: post #67
OJFord wrote: post #62

Earlier quoted context omitted.

Have you shared this on /r/HomeAutomation and /r/HomeAssistant? Much less technical crowd in general than HN, but framing old tablets (as informational displays of 'smart home' state etc.) is quite popular, and I think your project is much more suited to it: much lower-power (such a device is only useful if always-on really), and much less distracting (e-paper not glaring bright colourful iPad or whatever). Looks gre…

Check this out: https://homey.ink

Ah, making it run on Kobo is a neat solution, I didn't think of that.

Hadn't heard of Homey.app that that's for, but yes I guess what I'm suggesting is that Paperd.ink could be a good 'that, but for people that DIY with HomeAssistant/OpenHAB/whatever'.

Re: Paperd.Ink – A hackable e-paper display

#69

Post by weejewel »

OJFord wrote: post #68
weejewel wrote: post #67

Earlier quoted context omitted.

Check this out: https://homey.ink

Ah, making it run on Kobo is a neat solution, I didn't think of that. Hadn't heard of Homey.app that that's for, but yes I guess what I'm suggesting is that Paperd.ink could be a good 'that, but for people that DIY with HomeAssistant/OpenHAB/whatever'.

Absolutely, this project has a great DIY vibe and might be better suited to build into the wall.

Using a Kobo eReader on the other hand is a great purpose for when you’re not using it. Now when I leave for holiday I just take it from the wall :)

Re: Paperd.Ink – A hackable e-paper display

#70

Post by mellosouls »

I remember a similar looking project from a few years ago fwiw:

https://mpetroff.net/2012/09/kindle-weather-display/

Another, inspired by that: https://shkspr.mobi/blog/2020/02/turn-an-old-ereader-into-an...

A little off topic, but for anybody interested in doing something for themselves, there are various "smart mirrors" that aren't e-ink, but use a tablet screen behind a mirror.

Eg. https://www.instructables.com/howto/smart+mirror/

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