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IntelRealSense / librealsense

Intel® RealSense™ SDK
https://www.intelrealsense.com/
Apache License 2.0
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L515 not working in Android #9753

Closed rodrigo-a-lima closed 3 years ago

rodrigo-a-lima commented 3 years ago

Hi,

I'm trying to use my L515 into an Android Lenovo Tab M10 FHD Plus by the Intel RS Camera app. I'm using a 2.0 USB. However, it just shows that the device is connected, but the screen is black. Is there any workaround?

Best,

MartyG-RealSense commented 3 years ago

Hi @rodrigo-a-lima The discussion https://github.com/IntelRealSense/librealsense/issues/8069 states that to use the Android RS Camera app with L515, it can be installed and run directly as an apk obtained from the link below.

https://egiintel.jfrog.io/artifactory/librealsense/com/intel/realsense/librealsense/

rodrigo-a-lima commented 3 years ago

Hi Marty, I tried the camera-2.49.0.apk, but it still keeps the black screen asking to connect the RealSense camera

MartyG-RealSense commented 3 years ago

A RealSense user with an L515 had the same issue with the black screen in https://github.com/IntelRealSense/librealsense/issues/7053 and was advised to connect the camera with USB 3, though they continued to have the problem even when connecting with USB 3.

Which firmware version is your L515 using, please? L515 initially only supported USB 3 when first released but support for USB 2 was added in a later firmware driver. However, if you currently have a firmware installed in the camera that is older than the version that introduced USB 2 support then you have to update the firmware on a computer with a USB 3 connection.

https://dev.intelrealsense.com/docs/firmware-releases-l500

Here is the information from the L515 firmware release notes:

image

rodrigo-a-lima commented 3 years ago

Hi Marty, thank you very much for your reply. I will check the firmware of my L515 next week. I left it at the university. Fingers crossed that it worked; it will be part of my research. I will keep you updated about it.

MartyG-RealSense commented 3 years ago

Yes, please do update here when you have checked the firmware in the coming week. Good luck!

rodrigo-a-lima commented 3 years ago

Hi Marty! I updated the firmware to version 1.5.8.1, and it is still not working on my Android tablet. To updated, I used the standard cable that came with my L515. Was it correct?

MartyG-RealSense commented 3 years ago

Yes, it is correct to use the cable that is supplied with the camera to perform firmware update.

Are you able to build and run any other RealSense example applications on your Lenovo Tab successfully, such as Capture

https://github.com/IntelRealSense/librealsense/tree/master/wrappers/android/examples/capture

There may be a rare occasion where a particular model of phone has been given a chipset by its manufacturer that is incompatible with RealSense, as demonstrated in https://github.com/IntelRealSense/librealsense/issues/8442#issuecomment-785798027

As mentioned in that link, RealSense's Android API can also have problems with the Android 10 OS. My research of the Android Lenovo Tab M10 FHD Plus model suggests that it is Android 9. Is your particular device Android 9 or 10, please?

rodrigo-a-lima commented 3 years ago

Hi Marty, my android is the 10 version.

I'm sorry to say, but I have no idea how to do the capture.

Please, where could I find a tutorial to do this?

MartyG-RealSense commented 3 years ago

The first step would be to set up the RealSense Android compatibility 'wrapper' using the instructions in the link below.

https://github.com/IntelRealSense/librealsense/tree/master/wrappers/android

The bottom of that page also explains how to build and run the wrapper's Android example programs, including capture, once the wrapper is set up.

Once the Android wrapper is set up, the workaround for getting it to work with Android 10 is to set an option called targetSdkVersion to a value of '27'. However, this will likely not make a difference if the problem is with the internal chipset hardware of your particular Android device.

rodrigo-a-lima commented 3 years ago

Hi Marty, I'm sorry to say, but I didn't find any option after step 4 using the link you sent me. Is there any beginner tutorial for this?

MartyG-RealSense commented 3 years ago

I researched your request for a beginner tutorial carefully but did not find one. I did though go through the installation steps in Intel's guide from the beginning to check them.

May I confirm whether you were able to install Android Studio successfully? I found that it did not work correctly on a networked Windows PC but installed correctly on a PC that was not on a network.

At step 4 of the procedure, I went to the Open option of Android Studio and instead of selecting a location on the computer, I pasted the website address that Intel provide in their guide into the address bar at the top of the Open pop-up box.

In the guide it is written as path to build.gradle, but it is a link and clicking on it provides the full address below:

https://github.com/IntelRealSense/librealsense/blob/master/wrappers/android/build.gradle

After I pasted this address into the location to open and clicked the OK button, the build gradle downloaded into Android Studio and installed automatically.

image

rodrigo-a-lima commented 3 years ago

Yes, I had some issues with the Android Studio. In fact, I need to install it all the time when I'll use it. It's pretty weird. Thank you very much for your support. It is very important to make things work for my research. I tried to find something too, but there is nothing for beginners as you said...

I did what you said after step 4, and all I have in return was this that you could see on the print screens...I even don't know if it is the correct thing that should appear.

image

1

MartyG-RealSense commented 3 years ago

That is the same screen that I received in my own Android Studio installation after opening using the supplied build gradle web address.

Logically, the next step would be to move on to Step 5 of the installation guide. "In the gradle tasks run :librealsense-->build-->assembleRelease:"

image

I was unable to find the Gradle Tasks interface in the above illustration. Apparently in Android Studio 2021 it is disabled by default because it can negatively impact performance, and the procedure to re-enable it is as follows:

  1. Go to File > Settings

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  1. Go to the Experimental category. Untick the setting Do not build Gradle task list during Gradle sync. then click the Apply and OK buttons.

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  1. Click the Sync projects with Gradle files icon on the toolbar in the top corner of the Android Studio window.

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rodrigo-a-lima commented 3 years ago

Hy Marty,

Thank you so much for your explanation; I'd never find out it by myself.

I followed your steps and this is the screen that I got.

image

MartyG-RealSense commented 3 years ago

You're very welcome :)

Are you able to display a Gradle tasks list like the one in the instructions? If you are, then are you able to select the assembleRelease entry and run it?

image

rodrigo-a-lima commented 3 years ago

Well, I find the option, but it doesn't look very similar to your previous screens...What do you think?

image

MartyG-RealSense commented 3 years ago

Given that the Intel installation guide that we are referring to was published a long time ago, there are bound to be differences between its images and the current 2021 version of Android Studio. So it is not necessarily something to be concerned about.

Are you able to run assembleRelease ? The installation guide says that the build process after running it should take a few minutes, and if the build succeeds then the generated AAR will be located in <librealsense_root_dir>/wrappers/android/librealsense/build/outputs/aar

rodrigo-a-lima commented 3 years ago

Unfortunately no... I tried to run it, but this error occurred during the process Please ignore part of a zoom meeting to the right. I was supposed to be part of it, but I'm more worried to solve this issue with the L515!

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rodrigo-a-lima commented 3 years ago

Hi Marty,

I solved it!

image

MartyG-RealSense commented 3 years ago

That's excellent news, @rodrigo-a-lima - thanks so much for the update! :)

rodrigo-a-lima commented 3 years ago

Now could you help me with the next step, please? Sorry about this...

MartyG-RealSense commented 3 years ago

It's no problem at all. After running assembleRelease, were you able to find a built AAR in the librealsense/wrappers/android/librealsense/build/outputs/aar folder?

If you do have an AAR, is the next step that you would like help with to run one of the example apps?

rodrigo-a-lima commented 3 years ago

You won't believe it, but my tablet had some issue with the charger. I already claimed the warranty, but I will stay some days without it...Or I'll have a refund... Anyway, Marty, do you know a portable device that will de compatible with the L515? I'll need to check other possibilities because I don't know if I could rely on this tablet for the fieldwork.

MartyG-RealSense commented 3 years ago

I would recommend avoiding devices with Android 10 if possible because of the the problems that the RealSense Android wrapper has with it. So Android 11 would be the ideal.

I have not seen librealsense Android wrapper issues that use L515 with named Android 11 models, so unfortunately I do not have recommendations that I can highlight.

In regard to non-L515 reports, a RealSense user successfully used a Google Pixel 4 with Android 11 and a 400 Series camera in https://github.com/IntelRealSense/librealsense/issues/7691

MartyG-RealSense commented 3 years ago

Hi @rodrigo-a-lima Do you require further assistance with this case, please? Thanks!

rodrigo-a-lima commented 3 years ago

No Marty, thank you very much for your patience on this! It is truly appreciated.

Best, Rodrigo

Rodrigo de Lima / PhD candidate Labeca – Laboratory of Studies on the Ancient City University of Sao Paulo Museum of Archaeology and Ethnology University of Bristol Department of Anthropology and Archaeology

Pronouns he, him, his

From: MartyG-RealSense @.> Sent: 22 September 2021 07:19 To: IntelRealSense/librealsense @.> Cc: Rodrigo Lima @.>; Mention @.> Subject: Re: [IntelRealSense/librealsense] L515 not working in Android (#9753)

Hi @rodrigo-a-limahttps://github.com/rodrigo-a-lima Do you require further assistance with this case, please? Thanks!

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MartyG-RealSense commented 3 years ago

You are very welcome. As you do not require further assistance, I will close the case. Thanks again!