| T O P I C R E V I E W |
| aleit |
Posted - 21/05/2019 : 18:09:12
Abstract: I am comparing color and grayscale e-ink display Android devices running LK8000 to decide what works best for me.
The Nokia 8 is currently considered the best Android device with color display for running LK8000 (ref.: https://www.postfrontal.com/forum/topic.asp?TOPIC_ID=8786&whichpage=4 ).
Since a few years, there are a variety of e-ink devices with Android OS: Yotaphone 2 and 3, Hisense A2 and A6, Boyue Likebook Mars, Onyx Boox Nova and Note, Not-eReader, etc. Of these, I consider the Yotaphone 2 to be the best because of the size and because AFAIK it is the only one with a matte finish (glossy e-ink is a contradiction IMO).
So, I got both a Nokia 8 and a Yotaphone 2 to compare them and choose which one I prefer to use for running LK8000 in a glider cockpit.
I share my findings with the forum hoping it can be useful for someone else, and willing to read other experiences and suggestions with these or alternative devices. In bold the best results.
Conclusion: the Nokia 8 display performance ranges from far superior to unreadable depending on the sun position. The Yotaphone 2 offers an average grayscale view that is guaranteed in any condition.
At the moment my favourite choice is the Yotaphone 2, because of its reliability (readability and battery life). I carry the Nokia 8 as a backup, and I intend to connect them via LKnet to use Nokia barometer data in the Yotaphone.
Possible improvements:
The Nokia would improve a lot if coupled with a sunshade and a power bank (something like this https://images-na.ssl-images-amazon.com/images/I/61Tfq7WyynL._SX679_.jpg ).
The grayscale display could use a pattern (dots, dashes, crosses) to better differentiate climb from sink in the trail. For example, a line from heavy sink to neutral to heavy climb could be something like this:
OOOOOOOOOOOOOOOOOOoooooooooo- - - - - - - - - ------------------------ + + + + + + +++++++++##################
Photos
Without reflection:
With reflection:
Yotaphone 2 in flight (full size https://ibb.co/Z6CWw7m)
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| 15 L A T E S T R E P L I E S (Newest First) |
| parapenT1sta |
Posted - 05/01/2022 : 23:04:24
Try this version: https://github.com/LK8000/LK8000/releases/tag/7.3.9
https://github.com/LK8000/LK8000/releases/download/7.3.9/LK8000-7.3.9-beta.apk |
| Slople |
Posted - 05/01/2022 : 13:38:02
I just bought a second HiSense A7, the first is running XCTrack, the 2nd was intended to use with XCSoar or LK8000.
XCSoar runs perfectly fine without any configuration.
LK8000:
- I can launch it
- the "profile" menu works
- "exit" works ;-)
- "fly" or "sim" lead to a black screen after "initialising display".
In RUNTIME.log, I find the following lines:
[000149815] . Starting LK8000 v7.2.1 Dec 16 2020 LINUX
[000149815] . System Name: Linux localhost
[000149815] . Kernel Version: 4.14.133
[000149815] . Kernel Build: #1 SMP PREEMPT Wed Sep 15 00:23:30 HKT 2021
[000149815] . Machine Arch: aarch64
[000149816] . Free ram=2945476 K storage=4294967295 K
[000149816] . Host and Cpu informations not available
[000149816] . Program execution path : </system/bin/>
[000149817] . Program system directory : </data/app/org.lk8000.beta-55jI9GX5-HGrABahR5AqOg==/base.apk/>
[000149817] . Program data directory : </storage/emulated/0/LK8000/>
[000149827] .... LoadProfile </storage/emulated/0/LK8000/_Configuration/DEFAULT_AIRCRAFT.acf> open failed
[000149828] .... LoadProfile </storage/emulated/0/LK8000/_Configuration/DEFAULT_PILOT.plt> open failed
[000149828] .... LoadProfile </storage/emulated/0/LK8000/_Configuration/DEFAULT_DEVICE.dvc> open failed
[000149830] . InitLKScreen: AUTORES 900x1800
[000149899] . >> (LKFonts) Unknown unsupported screen geometry or resolution
[000153919] .... LoadProfile </storage/emulated/0/LK8000/_Configuration/DEFAULT_PILOT.plt> open failed
[000153920] .... LoadProfile </storage/emulated/0/LK8000/_Configuration/DEFAULT_DEVICE.dvc> open failed
[000153920] .... LoadProfile </storage/emulated/0/LK8000/_Configuration/DEFAULT_AIRCRAFT.acf> open failed
[000154003] . >> (LKFonts) Unknown unsupported screen geometry or resolution
The last line looks "interesting".
Any idea?
Where could I download older versions to try? This device does not have Google Play Store, I need the APK directly. |
| Fat Albert |
Posted - 18/02/2021 : 16:32:41
quote:
Originally posted by aleit
quote:
Runs LK8000 a treat
Nice!
Is the screen glossy or matte?
How long does the battery last with lk8000 running?
The screen is matt
I don't know, it's never run out of battery, even after 48 hours with the front light on!!! |
| Fat Albert |
Posted - 18/02/2021 : 16:31:39
quote:
Originally posted by Med50
just to add that the device is on sale at 199€ in Italy
https://www.cooponline.it/Coop/Elettrodomestici-e-Tecnologia/Informatica-e-Gaming/Computer/Ebook-reader-e-altri/eBook-reader-6%22-Color-16-GB-argento-PB633-N-VVO-pid487583401?gclid=CjwKCAiApNSABhAlEiwANuR9YDMIoGLZcmul8x8ISszUxjm_6dfFld8ALlK7SHzIGwPu43iIMibUcBoC-2YQAvD_BwE#
No this is NOT the Onyx Boox Poke 2 color, it is a Pocketbook device and runs a closed version of Unix. It does have the same screen. |
| Fat Albert |
Posted - 18/02/2021 : 16:30:16
quote:
Originally posted by brunotl
what is the model exactly ?
Onyx Boox Poke 2 Color
https://onyxboox.com/boox_poke2color |
| aleit |
Posted - 02/02/2021 : 17:23:09
quote:
Runs LK8000 a treat
Nice!
Is the screen glossy or matte?
How long does the battery last with lk8000 running?
|
| Med50 |
Posted - 31/01/2021 : 08:59:16
just to add that the device is on sale at 199€ in Italy
https://www.cooponline.it/Coop/Elettrodomestici-e-Tecnologia/Informatica-e-Gaming/Computer/Ebook-reader-e-altri/eBook-reader-6%22-Color-16-GB-argento-PB633-N-VVO-pid487583401?gclid=CjwKCAiApNSABhAlEiwANuR9YDMIoGLZcmul8x8ISszUxjm_6dfFld8ALlK7SHzIGwPu43iIMibUcBoC-2YQAvD_BwE# |
| brunotl |
Posted - 25/01/2021 : 19:19:05
what is the model exactly ? |
| Fat Albert |
Posted - 25/01/2021 : 18:15:30
I bought one from Ebay for €200, it's a fine Android 9 tablet for everything except video, away from the glider I have connected to my Huawei Mate 20x via BT, in the glider I have it connected to my Flarm via BT
Runs LK8000 a treat, this screen shot was taken at around 11:00 on a gin clear day with the sun directly on the screen
 |
| brunotl |
Posted - 28/10/2020 : 15:59:06
quote:
Originally posted by aleit
quote:
Originally posted by Fat Albert
Onyx Boox Poke 2 Ereader - $299
Nice. Now more than ever we would benefit from user settings to enable e-ink support, "colors and dither choice should be user selectable from the settings, rather than depending on the product code that requires patches to source code" https://www.postfrontal.com/forum/topic.asp?TOPIC_ID=9137
contributions are welcome ;) |
| aleit |
Posted - 28/10/2020 : 08:56:02
quote:
Originally posted by Fat Albert
Onyx Boox Poke 2 Ereader - $299
Nice. Now more than ever we would benefit from user settings to enable e-ink support, "colors and dither choice should be user selectable from the settings, rather than depending on the product code that requires patches to source code" https://www.postfrontal.com/forum/topic.asp?TOPIC_ID=9137
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| Fat Albert |
Posted - 27/10/2020 : 18:09:23
Onyx Boox Poke 2 Ereader - $299
6" Colour E-ink screen (300ppi b&w, 100ppi colour), 2ghz cpu, 2gb RAM, 32 GB memory, Android 9, WiFi, Bluetooth, USB 2 OTG and, crucially, fast refresh mode (circa 100ms).
No pressure sensor but the bluetooth makes it trivial to sync with a Bad Elf PRO+ GPS & Barometer or glider vario (e.g. LX Nav V7/S80) and speakers/headset
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| aleit |
Posted - 25/07/2020 : 13:56:15
HiSense A5 Pro CC supports usb OTG, there is a dedicated option in system settings. There is no baro sensor. |
| davesalmon |
Posted - 25/07/2020 : 10:10:58
In a syndicate DG500 we use all sorts of devices,Oudie, V2, Nokia 8, etc., all are powered directly from the glider bus, and connect to Flarm for data via a Soartronic BT module. Same in my Discus bT using a Nokia 8 (cost me about £100 refurbished). Both have been 100% reliable. (So that is a total of about £150 for as good a navigation setup as you can get, running LK8000).
I sometimes think this sunlight readability is over emphasized. I go back to early iPAQ, and Mio, certainly unreadable in direct sunlight, but we managed, because this new technology they offered was so brilliant. Most modern devices are pretty good. The V2 and Glider Guider were excellent in their day, still are quite acceptable. Just change heading a bit to get the sun off the screen, we don't normally fly one heading for long in gliders anyway. |
| andydasmith |
Posted - 24/07/2020 : 22:12:28
Hi Aleit, the HiSense A5 Pro CC with color e-ink display looks very good. Like you, I've been waiting for colour e-ink to mature for a long time. I used Android LK8000/XCSoar on a Dell Streak 5 for many years but found usb connectivity through the IOIO board unreliable (my ebay IOIO boards kept blowing up while trying to recharge the Dell's battery in flight). So I moved to Kobos running usb OTG. I've progressed through Mini, Touch 1 and 2 and now Aura 2 connected through a hub to KRT2 radio, T-beam and vario.
I find the e-ink sunlight readability to be excellent.
My question is if the HiSense A5 Pro CC supports usb OTG, most high spec Android phones do these days and I want to connect 3 things through a hub. Thanks for posting the sunlight pics, very helpful |
