Hi, We tried to run the app from https://github.com/luxonis/depthai-android-jni-example , but the app is crashing. We are using Android 11 device and connecting it with OAK-D Pro W camera. When we tried to debug, we found that it is not able to connect with the device and code is getting struck in following part: // Connect to device and start pipeline device = make_shared<dai:: Device>(dai:: OpenVINO::VERSION_2021_4, dai::UsbSpeed::HIGH); Any idea on how it can be fixed? Thanks, Manjiri

Hi ManjiriNerurkar , Have you accepted permission for the USB device (OAK)? How did you connect the phone with the camera, did you use USB OTG? Please share as much as possible (video of the process, details, versions, cable used, etc.), otherwise, we can't really help. Thanks, Erik

Hi erik , Yes, I have accepted the permission for OAK device. I have used USB OTG to connect the camera with phone (details below) Details of devices and cables: Android device: OnePlus 6 Android version: 11 USB OTG: OAK camera: OAK-D Pro W We have cloned the repo from https://github.com/ibaiGorordo/depthai-android-jni-example and have not made any changes in it. Attaching video of process for reference: https://drive.google.com/drive/folders/1qDdHQ5iszROAIkr9TzQU02VRLbYboRxc?usp=sharing If needed, we can have a call to demonstrate the issue we are facing. Thanks, Manjiri

Android app is crashing

ManjiriNerurkar

Hi erik ,

Yes, I have accepted the permission for OAK device.
I have used USB OTG to connect the camera with phone (details below)
Details of devices and cables:
Android device: OnePlus 6
Android version: 11
USB OTG:
OAK camera: OAK-D Pro W
We have cloned the repo from https://github.com/ibaiGorordo/depthai-android-jni-example and have not made any changes in it.
Attaching video of process for reference: https://drive.google.com/drive/folders/1qDdHQ5iszROAIkr9TzQU02VRLbYboRxc?usp=sharing

If needed, we can have a call to demonstrate the issue we are facing.
Thanks,
Manjiri

erik

Hi ManjiriNerurkar ,
Have you tried this compiled app? I think we added a few changes to ibaiGorordo's demo; https://github.com/luxonis/depthai-android-jni-example#compiled-app-apk
Thanks, Erik

ManjiriNerurkar

Hi erik ,

Yes, I have tried this app as well. But it is giving me same result.

Thanks,
Manjiri

erik

Hi ManjiriNerurkar ,
I have tried it with Poco X3 Pro (MIUI Global 12.5.9, ANdroid 11 RKQ1.200826.002), works as expected, please see screenrecording/cable configuration here. I have used precompiled .apk from the github repo and an OAK-D-Lite with USB3 cable and USB-A to USB-C converter (this side I inserted into the Android phone). I would suggest trying either a different phone/cable/converter, or try to compile the apk yourself and live-view the error log which would be helpful for debugging. Thoughts?
Thanks, Erik

ManjiriNerurkar

Hi erik ,

I think we have used the same cable configuration as yours, but it is not working for us.
I am attaching the image of our cable configuration and the logs from logcat for your reference: https://drive.google.com/drive/folders/1qDdHQ5iszROAIkr9TzQU02VRLbYboRxc?usp=sharing
We tried to figure out the issue from it, but it is not clear to us.

Thanks,
Manjiri

erik

Hi @ManjiriNerurkar ,
Is that an USB3 converter from USB A to USB C? As it looks like the power one (USB2).
Thanks, Erik

ManjiriNerurkar

Hi erik ,
Yes, it is an USB3 converter. Please find below details about it:

erik

Hi ManjiriNerurkar ,
Unfortunately I can't reproduce this issue, and I also don't have the exact same HW. My best suggestion is trying on other HW (cable, adapter, phone..), as Android integration is community support only.
Thanks, Erik

ManjiriNerurkar

Hi erik ,

Thank you so much for your support.
We understand that reproducing this issue would be a challenge.
We just have a request if it is possible for you to test the app with OAK-D Pro W camera.
This would help us a lot.

Thanks,
Manjiri

erik

Another thing, I didn't use the Y-adapter, perhaps you could try powering the OAK directly from the Android phone? As this could also be a power issue. Testing with OAK-D Pro W should be exactly the same as with the OAK-D S2.
Thanks, Erik

ManjiriNerurkar

Hi erik ,

We have tried every possible scenario that could help us solve this issue.
We changed the cable as you suggested, tried with different android devices like OnePlus 6 (android version 11), Samsung Galaxy S9 (android version 10), Samsung Galaxy M32 (android version 12).
We also tried without using y-adaptor and connecting the camera directly to android phone. But none of them is working.
The only option remains is someone from your team checking the app with OAK-D Pro W.
We understand that OAK-D Pro W is exactly the same as OAK-D S2 and we also understand that android integration is community support only. But it would really help us if you could support us in this.
If you have someone from your team in India, we are ready to ship our camera to them for checking if needed.
Thank you so much for your support.

Manjiri

erik

Hi ManjiriNerurkar ,
I would suggest compiling the android app and debugging it directly (debugging over WiFi after uploading the app to the phone). Please share error logs when debugging the app and we will be able to help.
Thanks, Erik

ManjiriNerurkar

Hi erik ,
Attaching the error log as you suggested:
https://drive.google.com/drive/folders/1psaMP0_LfygGxChMSi2t_KFYwuN5AMJ8?usp=sharing
Thanks,
Manjiri

erik

Hi ManjiriNerurkar ,
I apologize for the inconvenience, but after communicating with management we have decided to drop support for Android, as it's very rarely used by our customers. We might re-support it in the future though. In case your project purely depends on Android support and would like a refund, please send an email to support@luxonis.com.
Kind regards, Erik

CoachRoebuck

erik
Hi Erik...

Since official support for Android has been abandoned for the time being, is it ok if I take this source code and run with it for a while? I had planned on connecting to my Oak-D S2 PoE camera by wifi. My camera is on the same local network as my phone. If those python demos are able to accomplish this, I don't see any reason why this is not achievable on the mobile platform. It looks like, upon initial glimpse of the source code, we had only imported the core library. Please advise if I am mistaken.

btw: Notwithstanding no longer providing support for Android, what type of adapter do you recommend in order to successfully run that Android demo, anyway? Are you able to share a link to buy that adapter when you have time?

Thanks, and have a great day!

erik

Hi CoachRoebuck ,
Yes of course - just like with IOT line, we still sell those models and people are still using them, we just don't provide any support for it. Someone would likely need to debug some issues in Android Studio, and due to low customer interest we have decided that it's community support only.

I believe any not-the-absolute-cheapest USB3 USB-A to USB-C would work, but we have used this one and it worked as expected.

Thanks, Erik