Turn your old NST into an electric sign

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SJT75

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Sep 19, 2020
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I wouldn't fixed NST to a wall and think that I have read here about app used here to do that job. Either someone is gonna fix TLS issue or maybe if we assume using NST as display it could be possible to use home Wi-Fi router or mobile phone as secure server or part of VPN that will negotiate TLS issue for NST. I always doubted slightly that NST can offer full internet browser experience but something in line of htttp web grab in reader mode might be good enough for some application. News (RSS), weather and I believe that maybe EPG TV guide are not impossible to accomplish. Only question about this remains will NST embedded HTML browser will be good for the job of showing the grab from web pages or is Opera in reader mode better for such job. Time to look up for a good web grabber...
 

nmyshkin

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Nov 21, 2013
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I wouldn't fixed NST to a wall and think that I have read here about app used here to do that job. Either someone is gonna fix TLS issue or maybe if we assume using NST as display it could be possible to use home Wi-Fi router or mobile phone as secure server or part of VPN that will negotiate TLS issue for NST. I always doubted slightly that NST can offer full internet browser experience but something in line of htttp web grab in reader mode might be good enough for some application. News (RSS), weather and I believe that maybe EPG TV guide are not impossible to accomplish. Only question about this remains will NST embedded HTML browser will be good for the job of showing the grab from web pages or is Opera in reader mode better for such job. Time to look up for a good web grabber...
Curl can often bypass SSL checks and grab web content. It runs on the NST. I've used it in a few of my apps. Whether the data it gets can be used by the app the blogger mentions is something else.
 

SJT75

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@nmyshkin that is nice idea! And seems exactly in line of what I wrote. I do not know is curl accessible from Android layer. I pondered the same thought more in line of trying to use port of Lynx to Android I have seen someone did although who knows is that possible to do on this version of Android?
 

Renate

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Hmm, you got me thinking about this stuff.
There's the whole let the Nook poll some data service and display it on a web browser sort of thing.
I don't really need or want that.

I was thinking more of like as a status output device for a headless Raspberry Pi.
No, not as a terminal, more like status for a solar/home/whatever system.
The Nook doesn't poll anything, it just sits there waiting for text or graphics.
But here's the part I like, you don't use any WiFi.
You just plug your Nook into the Raspberry Pi.
Of course it has adb.
You can get adb for Raspberry Pi: sudo apt-get install android-tools-adb
Now you can set up port forwarding:
Code:
[email protected]:~ $ adb forward tcp:6666 tcp:6666
Then all you need is something on the RPi to connect to port 6666 and spit out stuff.
On the Nook you need an app to serve port 6666 and do display stuff.

I've already made a clock as proof of concept and it works fine.
You could just use text fields or compose a whole graphic frame on the RPi and send that over.
Heck, if you send whole frames you wouldn't even need to run the Android subsytem.
I could probably get that working on a Kobo.

A very sophisticated example follows.
It allows you to individually update separate fields.
These could be in tables with borders or labels or whatever.

Edit: Okay, a better screenshot.
You know, the thing I like about this is that the NST is the server.
It's a bit like running X11, but much more lightweight.
And if you want you can still run this over WiFi instead of ADB forwarding.
 

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jptiger

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Jul 23, 2011
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This electric sign app is really close to something I'm looking for. What I'd like to do is, instead of a screenshot of a URI, to take a screenshot of what I've got open in the device.

I'd like to use this with Google Calendar, and Opera Mini surprisingly seems to work with the HTML version. I think Opera Mini keeps the calendar updating with AJAX or something, so all I'd need an app like this to do would be to, when it's running, take a screenshot of what's on the screen right before sleeping and set that as wallpaper, then wake every X minutes, screencap what's there and go back to sleep with that as the new wallpaper. The end result should be an always-on, low power Google Calendar.

EDIT: For anyone looking later, I was wrong. Opera Mini does not keep updating Google Calendar, you have to refresh it manually, which makes this slightly more complicated...
 
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nmyshkin

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Nov 21, 2013
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This electric sign app is really close to something I'm looking for. What I'd like to do is, instead of a screenshot of a URI, to take a screenshot of what I've got open in the device.

I'd like to use this with Google Calendar, and Opera Mini surprisingly seems to work with the HTML version. I think Opera Mini keeps the calendar updating with AJAX or something, so all I'd need an app like this to do would be to, when it's running, take a screenshot of what's on the screen right before sleeping and set that as wallpaper, then wake every X minutes, screencap what's there and go back to sleep with that as the new wallpaper. The end result should be an always-on, low power Google Calendar.
Somewhere on the site there is a discussion of a setup that copies the current screen into a screensaver folder so that, for example, a map remains visible when the device sleeps. Search for it.

Edit: https://forum.xda-developers.com/t/q-fridge-calendar.3057759/#post-59527882

Edit: https://forum.xda-developers.com/t/...uestion-o-noob-friendly.2941262/post-57216860
 
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SJT75

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Sep 19, 2020
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Eh, I'm not fond of browser-based anything,
For plain HTML stuff you could throw something together with Webkit instead.
For the adventurous you could use the Google Calendar API
I tend to agree with you. As I already wrote above something akin to Pocket/ReadItLater and similar might be accomplished using simple web grab I presume and offline HTML browser. I have thought that it looks odd that beside "hidden" (and sadly for us practically unusable) browser NST have another HTML viewer. Reason for that might be it was intended to be used for B&N "browsing" through their shop that they periodically download to NST or maybe for presentation of e-book material of older type that was for all intents and purposes just web archived HTML page or perhaps for viewing magazines purchased through B&N.

In essence even epub use elements of CSS/HTML but that is another story. Maybe it could be possible to make some poor man Pocket like offline browser if we somehow find the way to cobble together parts of some RSS, bookmarks syncing, e-mail listing, forum/blog viewer and approach that me or nmyshkin proposed here. In my opinion hardest part if some web grab is possible would be to render it in usable form for this device. That mean turning of ads, flash/video, loading pictures only on demand (or better in on/off way) and show only text information. Now what "browser" is suitable for this is yet to determine. I know that very old Opera could turn off animation an pictures but as I remember it did that in such way that it didn't download them at all to save bandwidth. Maybe it could be somehow set to load web archives in such manner? Think about it as giving an command that some web page be "printed as epub". It might be to large task to accomplish. Pocket worked if I remember right in such way that selected page was sent to dedicated server which did the trimming part for user and allowing him/her to download that content on other device to be read later on. Here I think that if we could sync for example one of bookmark folders from a computer with NST and achieve web grab of those links in usable form we might have something. It is a matter for the debate isn't Opera mobile and style management already wrote on here in forum same or even better. Problem would be that page reformat/rendering would be tasked to NST itself and I am not sure if it is up to the task or am I capable to cobble such thing alone for that matter. Something flashed in my mind didn't Calibre had some news reader? If it does then I am inventing the wheel here. Still it would be nice to be able to have some even limited ability to open a link to a news story from RSS feed or a forum/blog we follow or e-mail listing etc.

For Calendar I hope that some kind of dedicated app combining Calendar, planner and to do list can be found to already exist for this device.
 
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SJT75

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Sep 19, 2020
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Thanks for these! The ersatz Google News is amazing in that even the external links are text-only! It makes my Google News app obsolete! Great with Opera Mini. Many, many things to look at there :)
I am glad that I have contributed with something useful. As have already guessed from mine posts in this thread I have contemplated heavily about what could be more useful for NST some text-only browser akin to old trusty Lynx or some rewrite/redefinition of working Opera. One thing lead to another and at first I thought to maybe open and disclosed source for firefox readability extension/addon ported for working version of Opera somehow is a way to go but as I always check all aspects of mine quirky ideas I stumbled upon this. It is poor man solution but as I remembered that you follow NPR and they have text mode only site felt obliged to mention it here.
 

SJT75

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Sep 19, 2020
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In line with nmyshkin's idea of using curl if some information display akin to the one linked in the first post is needed does something like cron from Linux can be run on NST?
 

SJT75

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Sep 19, 2020
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"Print as epub" exist as web form. Here is the result of that one. https://dotepub.com/ I tried to use online form there and results were mediocre but as I understand they also offer their API to developers etc. That I presume might draw attention from someone on xda.
 
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SJT75

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Sep 19, 2020
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In defense of the intended idea for using NST as info screen arguably touch technology it uses is best for those screens. Mine guess is that its deemed as such because it is most easily scalable from the currently available techniques. This also raise the question why B&N did not already made readers of much larger format like A4 paper size screen. Is the display cost really that high and prohibitive? On the other news rumors have spread that they have partnered with Lenovo not only for the new generation of tablets but also for new e-readers. Has anyone find some leek about possible specifications?
 

SJT75

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Sep 19, 2020
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I agree. Cheap bastards! I can't say is that 149DPI good for LCD screen but is sub par for e-reader. They obviously targeted minimum resolution comparable to low resolution printing and hope to get away with it. Considered that I expressed criticism to level of development of current color e-ink technology being bellow resolution of NST by about 60% you can bet I find this to little question is does it comes to late for B&N. Still I am more interested about e-ink display device that rumor say is also planned but nothing is revealed so far.

Say, what? After my buying a Poke3?

Edit: See https://www.barnesandnoble.com/w/no...ovo-barnes-noble/1139012795?ean=9780594080503
1200 x 800 for a 10" = 144 DPI, not drop dead impressive
 

SJT75

Senior Member
Sep 19, 2020
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Nothing to report that is mine work now still in the spirit of this thread I want to post few links with things people did with e-ink screens that might be done with NST also.

1. Raspberry Pi powered news scrapper - something Renate might like as she as I understood work on something similar https://www.reddit.com/r/raspberry_pi/comments/ksgomp 2. Weather display that I believe was made using software already mentioned somewhere on forum
https://www.reddit.com/r/homeassistant/comments/lcyos9 3. Something completely different! Device made as platform to enable development many things e-ink made. Link shows RSS implementation.
4. In the old days when e-readers were unobtainable on my location I was in desperation contemplating the idea to convert available photo frames to a e-reader. This is as you guess the other way around. https://www.reddit.com/r/raspberry_pi/comments/liadda 5. Someone developed site for games for e-ink screen as I understood browser only
https://e-ink.club/index.php There is in my opinion plenty of room for some sort of games on e-ink and this is not comprehensive list but it is nice someone started a dedicated page/project for that.
 
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