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    Ye Lu
    Dec 16, 2020
    Edited: Dec 16, 2020

    General Discussion

    in Programming with CAIT

    Please feel free to start a discussion on anything related to CAIT.

    37 comments
    0
    37 Comments
    miwhfjxiiwawshrmet
    Dec 22, 2021

    Hi, Does CEP/CAIT support operation for a "Adafruit Servo HAT"?

    Like
    M
    Michael Ng
    Michael Ng
    Dec 24, 2021
    Replying to

    @miwhfjxiiwawshrmet Hi, CEP doesn’t support this HAT. But you are welcome to contribute to the project by adding the support of this HAT to CEP’s control module.

    Like
    filip
    Oct 22, 2021

    that looks better ;) I will start playing with next week :)

    Like
    filip
    Oct 22, 2021

    Hi, Did an update and then tried with a fresh installation, but the camera is not showing up on the setup page. tested the camera with raspistill and it works.


    Like
    M
    Michael Ng
    Michael Ng
    Oct 22, 2021
    Replying to

    Hi @filip , we have fixed this issue now, please perform the update steps again to pull the latest code from the dev branch. After this, the USB webcam or CSI camera should appear in the connected camera list on the Device setup page.


    1. cd cep

    2. git checkout dev

    3. git pull

    4. sudo reboot

    Like
    filip
    Oct 06, 2021

    Both logs are empty. I noticed that the docker service is not starting.

    Like
    M
    Michael Ng
    Michael Ng
    Oct 06, 2021
    Replying to

    Hi @filip, we will add support for CSI-camera (HQ camera) and USB webcam to CEP to support your use case. It is going to take us a few days. We will let you know when we have implemented this feature. This way you don't have to use our deprecated CAIT project. Please let me know if this is what you are looking for.

    Like
    filip
    Oct 06, 2021
    Replying to

    @Michael Ng that would be great. Thanks

    Like
    M
    Michael Ng
    Michael Ng
    Oct 22, 2021
    Replying to

    Hi @filip, we have implemented support for the USB webcam and Pi's CSI camera into the latest dev branch of CEP. Please check it out and have a test. You can get the latest update by:


    1. cd cep

    2. git checkout dev

    3. git pull

    4. sudo reboot


    Please note that the dev branch may contain bugs, feel free to reach out to us if you encounter any problems.

    Like
    M
    Michael Ng
    Michael Ng
    Oct 06, 2021

    That’s good to know.


    Regarding the CAIT’s “refused to connect“ issue you encountered earlier. I was not able to reproduce it today, I would need some logs to get more details, please perform the following steps on the device with CAIT:


    1. In the Pi’s terminal type: sudo journalctl -u cait_components.service > /home/pi/cait_components.log

    2. sudo journalctl -u cait_webapp.service > /home/pi/cait_webapp.log

    3. please send me both cait_components.log and cait_webapp.log under /home/pi

    Like
    filip
    Oct 06, 2021

    That solution solved it. both speaker and microphone dropdowns are filled in. Camera not since no CEP supported camera available.

    Like
    M
    Michael Ng
    Michael Ng
    Oct 06, 2021

    Thanks for the information @filip , I will be setting up a Pi with the Raspberry OS lite to debug tomorrow. In the meantime, please try the above solution and let us know of any issues.

    Like
    filip
    Oct 05, 2021

    waited for 40min, no difference


    Like
    M
    Michael Ng
    Michael Ng
    Oct 06, 2021
    Replying to

    @filip I have received the log, thanks. I would like to get one more log from the Pi, please follow the steps below:


    1. In Pi’s terminal type: sudo journalctl -u cait_webapp.service > /home/pi/cait_webapp.log

    2. A log file called cait_webapp.log will be created under /home/pi, please send me this file.


    Cheers,

    Michael

    Like
    M
    Michael Ng
    Michael Ng
    Oct 06, 2021
    Replying to

    @filip After looking into the logs, the reason has been identified, the following line in the log indicates that some packages are missing in the OS:


    ImportError: libImath-2_2.so.23: cannot open shared object file: No such file or directory

    A similar issue can be found in here: https://github.com/EdjeElectronics/TensorFlow-Object-Detection-on-the-Raspberry-Pi/issues/18


    The solution to this problem is to install the missing packages by typing the following in the Pi’s terminal:


    sudo apt-get install -y libilmbase-dev libopenexr-dev libgstreamer1.0-dev


    After the installation is finished, please reboot the device and test again.


    Can you also let me know which Raspberry OS you are using for the CEP? I would like to investigate further into this error, thanks.


    Michael

    Like
    filip
    Oct 06, 2021
    Replying to

    Linux raspberrypi 5.10.63-v7l+ #1457 SMP Tue Sep 28 11:26:14 BST 2021 armv7l GNU/Linux


    installed on SD card using 'Raspberry Image Manager" -> Raspberry OS Lite 32bit

    Like
    filip
    Oct 05, 2021

    null

    Discard all samples (playback) or generate zero samples (capture)

    jack

    JACK Audio Connection Kit

    pulse

    PulseAudio Sound Server

    default

    playback