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Android App is connecting but now writing any data?

Open rubru2019 opened this issue 4 years ago • 20 comments

Hi I am using this project for students to educate them. However suddenly the android app is not writing any wifi finger prints to the databse. I can not track it. When I change the port - it says can not connect - but when i keep 8005 is doesn't write. Any idea's?

rubru2019 avatar Nov 05 '20 15:11 rubru2019

Hey rubru,

Are you self-hosting the server, or using internalposition's? My first guess is to check if the server is out of space (or other resources), if you're self-hosting.

Does this happen using a specific device, or multiple?

vmetric avatar Nov 08 '20 04:11 vmetric

Thanks for your reaction!

No the server is not out of space, it work with a cli-scanner...I assume that it doens't work as of android 9? The android app sends empty data fields?


Android 9 and 10

Upon the release of Android 9, Google presented a surprise to all developers. The WiFi scan was cropped as much as possible. Now you can start the scan only four times every 120 seconds. If you try to start the scan more times, then all your attempts will be throttled.

In my previous article, I described a solution for scanning with equal intervals and working with WiFi RTT, but it’s worth noting that you cannot avoid throttling altogether.


best regards Rudolf


From: Matt [email protected] Sent: Sunday, November 8, 2020 05:47 To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hey rubru,

Are you self-hosting the server, or using internalposition's? My first guess is to check if the server is out of space (or other resources), if you're self-hosting.

Does this happen using a specific device, or multiple?

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fschollz%2Ffind3-android-scanner%2Fissues%2F25%23issuecomment-723530158&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C70e1702c6bce45d7923008d883a171f8%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637404076717540287%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=qpAXPjJmgrIg%2Fg2qsCHFKxnw1UfnYaldhUKKEPaEoQE%3D&reserved=0, or unsubscribehttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMDYNNJR33T5Z6DFOKVLGKDSOYPHJANCNFSM4TLP6GGQ&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C70e1702c6bce45d7923008d883a171f8%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637404076717550285%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=XG%2F4%2FKOPiIZ7alXL08GnHkDOILKtQHRXlKwjXAyI3Do%3D&reserved=0.

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rubru2019 avatar Nov 09 '20 08:11 rubru2019

Hey Rudolf,

It's possible, but the app works on my S10 Plus running Android 10. I'd imagine if it was an issue with throttling, the server would receive some data, but possibly very infrequently (maybe once every 120 seconds/2 minutes). After disabling throttling on my phone, I'm able to make the app scan every 5 seconds.

If you're running Android 10, are you able to turn off WiFi throttling in Developer Options?

It also may be worth trying reinstalling the app - uninstalling it, and then installing it again.

I'm not sure if schollz is still developing FIND3. If our troubleshooting with his app doesn't work out, we can continue troubleshooting on my fork of the app, where I can change the code, add information to the logs, etc.

Best regards, Matt

vmetric avatar Nov 09 '20 18:11 vmetric

Hi Matt,

Thanks for your tips - we will try another phone...

Just for your info - we are enthousiastic about all te work that has been done for this framework. We are using this technology in an educational game with 350 computer science students @ Hogeschool Leiden, Netherlands...

The game is a pokemon game. The teachers are bringing in Virtual Devices (as Pokemons). The students had to prove that they were in the same location @ the same time as the Pokemon. In that sense - the Pokemon is catched!

With the deck catched Pokemons - the students have to battle against other students decks....and predict what is the best strategy...

Best regards Rudolf


From: Matt [email protected] Sent: Monday, November 9, 2020 19:08 To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hey Rudolf,

It's possible, but the app works on my S10 Plus running Android 10. I'd imagine if it was an issue with throttling, the server would receive some data, but possibly very infrequently (maybe once every 120 seconds/2 minutes). After disabling throttling on my phone, I'm able to make the app scan every 5 seconds.

If you're running Android 10, are you able to turn off WiFi throttling in Developer Options?

It also may be worth trying reinstalling the app - uninstalling it, and then installing it again.

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rubru2019 avatar Nov 10 '20 14:11 rubru2019

Hey Rudolf,

May I ask what phones you are using with the app? Please let me know if it works with another phone.

The educational game sounds very fun, and very useful! I love to help teachers - education is very important, and I very much enjoy helping others teach. I'll do my very best to help resolve this issue :)

vmetric avatar Nov 11 '20 16:11 vmetric

Yes i am using a pocophone F1, android 10. We also tried it today with an tablad, android 9.

Due to covid, we are working from home and connecting through a fortiOpenvpn client to the vpn from school. But also at school Eduroam wifi the app doesn't seem to catch wifi fingerprints. It is connnecting to the findserver, but i suspec the wifi fingerprints are empty. Nothing is administrated. While using a raspberry pi in the same network als find-cli-scanner does work...

Best regards Rudolf

I am preparing this challengeweek for students together with student Raven van Velzen..thats why cc

https://aka.ms/ghei36Outlook voor Android downloadenhttps://aka.ms/ghei36


From: Matt [email protected] Sent: Wednesday, November 11, 2020 5:22:27 PM To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hey Rudolf,

May I ask what phones you are using with the app? Please let me know if it works with another phone.

The educational game sounds very fun, and very useful! I love to help teachers - education is very important, and I very much enjoy helping others teach. I'll do my very best to help resolve this issue :)

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fschollz%2Ffind3-android-scanner%2Fissues%2F25%23issuecomment-725518580&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7Ccb8f92312f1f4e3c61ac08d8865dfc29%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637407085509261693%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=MfMRQKBwQ27iXEHT0n5TuzYVTwvX01v4YQAxjNvDaLM%3D&reserved=0, or unsubscribehttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMDYNNPEHN4VDFQREXTB46DSPK24HANCNFSM4TLP6GGQ&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7Ccb8f92312f1f4e3c61ac08d8865dfc29%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637407085509261693%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Wltu3WNOVRIIJ08Bcfjbk8ZkZcX0SZC10xlD0KkXTNQ%3D&reserved=0.

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rubru2019 avatar Nov 11 '20 16:11 rubru2019

Hi Rudolf,

Thank you for the information. If the wifi fingerprints are empty, Android may be interfering with the app. Is it possible to confirm this with the server? When viewing a device on the server, it should show "Raw data" at the bottom:

If it shows "wifi":{}, then you are correct, the wifi fingerprints are empty. When scanning, what does the app say at the bottom, below the buttons? Please see the pictures belows:
Please also double-check the app has permission to use Location ("Allow only while using the app" should be okay): https://support.google.com/android/answer/9431959

vmetric avatar Nov 11 '20 18:11 vmetric

Also, I've forked schollz's FIND3 Android Scanner and have created my own scanning app. I've updated it to be fully compatible with Android 10's permissions and battery savings. I'm still learning, so it is not perfect, but on my phone running Android 10 it works a little smoother. Would you be willing to try it if we cannot get standard FIND3 Scanner to work?

vmetric avatar Nov 11 '20 18:11 vmetric

Hi Matt,

Via the AndroidApp the server doesn't show any information about the device. No "Raw data" at the bottom. (see screenshot, attachment) The app confirms it's running...but nothing seems to happen.. (see below)

Best regards Rudolf

[cid:06c92491-9003-457b-ad16-b55bea80743c]


From: Matt [email protected] Sent: Wednesday, November 11, 2020 19:42 To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hi Rudolf,

Thank you for the information. If the wifi fingerprints are empty, Android may be interfering with the app. Is it possible to confirm this with the server? When viewing a device on the server, it should show "Raw data" at the bottom:

Screenshot 2020-11-11 114108 When scanning, what does the app say at the bottom, below the buttons? Please see the pictures below.

[https://user-images.githubusercontent.com/40653288/98849636-be8e3700-2410-11eb-918e-ca7797caeafa.jpg]https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fuser-images.githubusercontent.com%2F40653288%2F98849636-be8e3700-2410-11eb-918e-ca7797caeafa.jpg&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7Cf32049e82ae44318634b08d886718e6f%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637407169561024342%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=cxt6yGgpsb9EHc%2FiN4e1RGSyoMXfXM6cIRvDiUiBhlE%3D&reserved=0

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rubru2019 avatar Nov 12 '20 19:11 rubru2019

Hi Matt,

Yes that would be nice! We might use the Raspberry Pi client as find3-cli-scanner but it would be more convenient to use an app...

Best regards Rudolf


From: Matt [email protected] Sent: Wednesday, November 11, 2020 19:55 To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Also, I've forked schollz's FIND3 Android Scanner and have created my own scanning app. I've updated it to be fully compatible with Android 10's permissions and battery savings. I'm still learning, so it is not perfect, but on my phone running Android 10 it works a little smoother. Would you be willing to try it if we cannot get standard FIND3 Scanner to work?

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fschollz%2Ffind3-android-scanner%2Fissues%2F25%23issuecomment-725599775&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7Ca4e4807627254ea889a608d8867358a3%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637407177254889676%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=8poakHT2P1v%2BHhsLabAcRwSwK%2BLiJzU2IHAwv1iU7dc%3D&reserved=0, or unsubscribehttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMDYNNLVETV5C62IFJPJM3LSPLMZVANCNFSM4TLP6GGQ&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7Ca4e4807627254ea889a608d8867358a3%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637407177254899671%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=H3XzmciRvzu0%2FYRerdruPk6sSkxrNtqxYkM1XO9QrE8%3D&reserved=0.

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rubru2019 avatar Nov 12 '20 19:11 rubru2019

After a while the app reports - it can not connect, fingerprints will not be uploaded.

regards Rudolf [cid:0ace6b53-802d-4da6-b328-63edd35dea77]


From: Matt [email protected] Sent: Wednesday, November 11, 2020 19:42 To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hi Rudolf,

Thank you for the information. If the wifi fingerprints are empty, Android may be interfering with the app. Is it possible to confirm this with the server? When viewing a device on the server, it should show "Raw data" at the bottom:

Screenshot 2020-11-11 114108 When scanning, what does the app say at the bottom, below the buttons? Please see the pictures below.

[https://user-images.githubusercontent.com/40653288/98849636-be8e3700-2410-11eb-918e-ca7797caeafa.jpg]https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fuser-images.githubusercontent.com%2F40653288%2F98849636-be8e3700-2410-11eb-918e-ca7797caeafa.jpg&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7Cf32049e82ae44318634b08d886718e6f%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637407169561024342%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=cxt6yGgpsb9EHc%2FiN4e1RGSyoMXfXM6cIRvDiUiBhlE%3D&reserved=0

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rubru2019 avatar Nov 12 '20 19:11 rubru2019

[cid:de2cb709-b2a0-4d3f-bd1f-7dcb3c86d58e] The server should be reachable...


From: Matt [email protected] Sent: Wednesday, November 11, 2020 19:42 To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hi Rudolf,

Thank you for the information. If the wifi fingerprints are empty, Android may be interfering with the app. Is it possible to confirm this with the server? When viewing a device on the server, it should show "Raw data" at the bottom:

Screenshot 2020-11-11 114108 When scanning, what does the app say at the bottom, below the buttons? Please see the pictures below.

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rubru2019 avatar Nov 12 '20 20:11 rubru2019

Hi Rudolf,

Thank you for the updates. I think "cannot connect, fingerprints will not be uploaded" means the app had some kind of error related to communication with the server. The portion of code that it comes from is here: https://github.com/schollz/find3-android-scanner/blob/4f0100eccf41ec097416bcea55f17375376898df/app/src/main/java/com/internalpositioning/find3/find3app/MainActivity.java#L376

In other words, "cannot connect, fingerprints will not be uploaded" tells us there is a problem talking to the server, but doesn't tell us what the problem is. I'm not sure how to investigate the problem further, because the app does not report what specific error it had. Maybe Android on the phones revoked a necessary permission when this problem started?

Tomorrow or the next day I will publish my version of the scanner to the Play Store and we can continue troubleshooting.

Thank you for your patience, Rudolf. Matt

vmetric avatar Nov 13 '20 06:11 vmetric

Hi Rudolf,

I've finished setting up to publish the app to the Google Play Store. It's currently under review - as soon as it is public, I'll post here with the Google Play listing.

Thanks, Matt

vmetric avatar Nov 16 '20 06:11 vmetric

Hi Matt, Sounds great. We are looking forward to try it. Thanks! Best regards Rudolf

Outlook voor Android downloadenhttps://aka.ms/ghei36


From: Matt [email protected] Sent: Monday, November 16, 2020 7:10:02 AM To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hi Rudolf,

I've finished setting up to publish the app to the Google Play Store. It's currently under review - as soon as it is public, I'll post here with the Google Play listing.

Thanks, Matt

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fschollz%2Ffind3-android-scanner%2Fissues%2F25%23issuecomment-727758196&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C3be41a811d154c601a2908d889f64224%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637411038061761490%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ZmPh%2F27q8XvvYO8C6JMBg4D2KL3IkSCvIlXZJ4DO9GA%3D&reserved=0, or unsubscribehttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMDYNNPWAPG3U4VFINJQY23SQC63VANCNFSM4TLP6GGQ&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C3be41a811d154c601a2908d889f64224%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637411038061771479%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=J0xGPhA7e7tJwGOqFGi7WcbLB5UCFt1UUkPC4c4Fn34%3D&reserved=0.

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rubru2019 avatar Nov 16 '20 07:11 rubru2019

Hi Rudolf,

The app is now live on Google Play as early-access. It works on my S10 Plus running Android 10, but should work on Android 9 and 10.

I highly recommend disabling WiFi throttling if possible. This is a useful guide for doing so: https://www.netspotapp.com/help/how-to-disable-wi-fi-throttling-on-android-10/ Let me know if you have trouble disabling WiFi throttling.

The app is available here: https://play.google.com/store/apps/details?id=net.vmetric.find3.find3app And the repository is here: https://github.com/vmetric/find3-android-scanner-continued

Let me know if the app does not work or has any issues. I'll be working on it over the weekend, so I'll be able to respond quickly.

Thank you!

Best regards, Matt

vmetric avatar Nov 20 '20 17:11 vmetric

Hi Matt,

Thanks! We will try-it out and let you know!

best regards Rudolf


From: Matt [email protected] Sent: Friday, November 20, 2020 18:58 To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hi Rudolf,

The app is now live on Google Play as early-access. It works on my S10 Plus running Android 10, but should work on Android 9 and 10.

I highly recommend disabling WiFi throttling if possible. This is a useful guide for doing so: https://www.netspotapp.com/help/how-to-disable-wi-fi-throttling-on-android-10/https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.netspotapp.com%2Fhelp%2Fhow-to-disable-wi-fi-throttling-on-android-10%2F&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144148838%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=aYiNyPWWAeMaS7AcIV6ph0yMi29Vo0VRBlFauk10QEU%3D&reserved=0 Let me know if you have trouble disabling WiFi throttling.

The app is available here: https://play.google.com/store/apps/details?id=net.vmetric.find3.find3apphttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fplay.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dnet.vmetric.find3.find3app&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144148838%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=zDyWDhhmv9ai1NGETEcbnR4xrsr4zS3FeoQQvBoKa6w%3D&reserved=0 And the repository is here: https://github.com/vmetric/find3-android-scanner-continuedhttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fvmetric%2Ffind3-android-scanner-continued&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144158835%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=SP8BRyUMSUPaX40SUfrLNwiblQ5LyK6vrox4QylF5UE%3D&reserved=0

Let me know if the app does not work or has any issues. I'll be working on it over the weekend, so I'll be able to respond quickly.

Thank you!

Best regards, Matt

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fschollz%2Ffind3-android-scanner%2Fissues%2F25%23issuecomment-731321495&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144158835%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=TEXcCmjdrgn9ga0u4sPbZrhB7Km2ePbV1phpCDV9mwY%3D&reserved=0, or unsubscribehttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMDYNNK6S5HFHPFIG6SBORDSQ2U4PANCNFSM4TLP6GGQ&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144168828%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=cca5MbtmiJbe1Wm13sjYnwrLuM3%2FKKK8x6P4QkwdgMw%3D&reserved=0.

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rubru2019 avatar Nov 23 '20 07:11 rubru2019

Hi Matt,

Top! We have tested the app and it seems to work fine! I have run it on a Pocophone f1, miui 12.0.2, android 10QKQ1

I didn't explictly disable WiFi throttling..

Thanks a lot!

FYI

  • We are currenly setting up an infra structure to be able to run 60 Raspbery PI as Find3Server
  • Each student group - needs to scan/learn up to 10 rooms
  • We will run a python script to catch the most used Wifi signal / fingerprint for each room
  • We will use the wifi signal to bring in a virtual device - named as Pokemon character / figure, about 5 minutes each character
  • The student have to "catch" this virtual device - when the catching device is in the same location as the virtual device - it is concidered "catched"
  • With the catched pokemons (virtual devices) the students will battle against each other in a battle area
  • All the data (find3 databases) are shared - so each group could find out which pokemon are "catched"
  • Students have to define a stategy - are they going to play for example with Fire, grass of air pokemons
  • They have to analyze all the battles and present it to the teachers
  • Our goal is to make starting students - enthusiastic for the "Data Science" track of our department...

Best regards Rudolf


From: Brugman, Rudolf [email protected] Sent: Monday, November 23, 2020 08:36 To: schollz/find3-android-scanner [email protected]; schollz/find3-android-scanner [email protected] Cc: Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hi Matt,

Thanks! We will try-it out and let you know!

best regards Rudolf


From: Matt [email protected] Sent: Friday, November 20, 2020 18:58 To: schollz/find3-android-scanner [email protected] Cc: Brugman, Rudolf [email protected]; Author [email protected] Subject: Re: [schollz/find3-android-scanner] Android App is connecting but now writing any data? (#25)

Hi Rudolf,

The app is now live on Google Play as early-access. It works on my S10 Plus running Android 10, but should work on Android 9 and 10.

I highly recommend disabling WiFi throttling if possible. This is a useful guide for doing so: https://www.netspotapp.com/help/how-to-disable-wi-fi-throttling-on-android-10/https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.netspotapp.com%2Fhelp%2Fhow-to-disable-wi-fi-throttling-on-android-10%2F&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144148838%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=aYiNyPWWAeMaS7AcIV6ph0yMi29Vo0VRBlFauk10QEU%3D&reserved=0 Let me know if you have trouble disabling WiFi throttling.

The app is available here: https://play.google.com/store/apps/details?id=net.vmetric.find3.find3apphttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fplay.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dnet.vmetric.find3.find3app&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144148838%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=zDyWDhhmv9ai1NGETEcbnR4xrsr4zS3FeoQQvBoKa6w%3D&reserved=0 And the repository is here: https://github.com/vmetric/find3-android-scanner-continuedhttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fvmetric%2Ffind3-android-scanner-continued&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144158835%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=SP8BRyUMSUPaX40SUfrLNwiblQ5LyK6vrox4QylF5UE%3D&reserved=0

Let me know if the app does not work or has any issues. I'll be working on it over the weekend, so I'll be able to respond quickly.

Thank you!

Best regards, Matt

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fschollz%2Ffind3-android-scanner%2Fissues%2F25%23issuecomment-731321495&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144158835%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=TEXcCmjdrgn9ga0u4sPbZrhB7Km2ePbV1phpCDV9mwY%3D&reserved=0, or unsubscribehttps://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMDYNNK6S5HFHPFIG6SBORDSQ2U4PANCNFSM4TLP6GGQ&data=04%7C01%7Cbrugman.r%40hsleiden.nl%7C656547473cda4acbb8ae08d88d7de510%7C850f9344e078467e9c5e84d82f208ac7%7C1%7C0%7C637414919144168828%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=cca5MbtmiJbe1Wm13sjYnwrLuM3%2FKKK8x6P4QkwdgMw%3D&reserved=0.

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rubru2019 avatar Nov 23 '20 20:11 rubru2019

Works on Xiaomi phones with Android 10 where the old app didn't work. Thanks!

Hopefully you can contact schollz to merge your fork or atleast link to your app from FAQ or docs.

DaminK avatar Nov 29 '20 16:11 DaminK

Thank you for letting me know! :)

I'm planning to reach out to schollz, but there's a bit of work I'd like to do beforehand.

Thank you again! :)

On Sun, Nov 29, 2020, 9:35 AM DaminK [email protected] wrote:

Works on Xiaomi phones with Android 10 where the old app didn't work. Thanks!

Hopefully you can contact schollz to merge your fork or atleast link to your app from FAQ or docs.

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vmetric avatar Nov 29 '20 16:11 vmetric