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ChaJH

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Posts posted by ChaJH

  2. Posted

    Hello everyone!
    I have a Tinker Board 2s and it also has a touchable LCD display.
    The products of display model are as follows
    >> 9.3inch Capacitive Touch Display, High Brightness, 1600×600, Optical Bonding Toughened Glass Panel, HDMI Interface, IPS | 9.3inch 1600x600 LCD (waveshare.com)

    The display and the Tinker Board are connected using HDMI only.
    And the os image on the Tinker Board is Android 12. (Tinker_Board_2-Android11-v2.0.8-20220503)
    First of all, the lcd display on the Tinker Board shows Android's screen well.
    However, the screen is streched a bit vertically.
    I,ve also tried the following ways to solve this problem myself.

    on the Tinker Board 2s :
           Setting > Display > HDMI > (SCREEN SETTING) HDMIA: Change Resolution

    But it didn't work....
    How can I change the resolution to a normal state where the vertical is not stretched?
    Or does Tinker Board not support the resolution of the display I use....?
    I would appreciate it if you could let me know the solution!

    Thank you in advance.

  3. Posted

    Hello everyone!

    I have a Tinker Board 2s and it also has a touchable LCD display.

    The products of display model are as follows

    >> 9.3inch Capacitive Touch Display, High Brightness, 1600×600, Optical Bonding Toughened Glass Panel, HDMI Interface, IPS | 9.3inch 1600x600 LCD (waveshare.com)

    The display and the Tinker Board are connected using HDMI only.

    And the os image on the Tinker Board is Android 12. (Tinker_Board_2-Android11-v2.0.8-20220503)

    First of all, the lcd display on the Tinker Board shows Android's screen well.

    However, the screen is streched a bit vertically.
    I,ve also tried the following ways to solve this problem myself.

    on the Tinker Board 2s :
    Setting > Display > HDMI >

     

  5. Posted

    2 hours ago, tooz said:

    hello @ChaJH, 

    1. i mean the tinker board android os version you're using (for example android 11 v.2.0.8), did you get the sources from here? TinkerBoard-Android/rockchip-android-manifest (github.com)

    2. the sample codes from this .zip does include libmraajava.so, would you like to give it a try? 

    The Sample codes of Mraa API for Tinker Board 2: Android-MraaDemo_tinkerboard2.zip

    thank you sir, @tooz!

    mraa works normally.

    Thank you very much.

    • Like 1

  6. Posted

    4 minutes ago, tooz said:

    hello @ChaJH, 

    1. i mean the tinker board android os version you're using (for example android 11 v.2.0.8), did you get the sources from here? TinkerBoard-Android/rockchip-android-manifest (github.com)

    2. the sample codes from this .zip does include libmraajava.so, would you like to give it a try? 

    The Sample codes of Mraa API for Tinker Board 2: Android-MraaDemo_tinkerboard2.zip

    My Tinker Board Android OS : Android 12 V3.0.2 (This is the latest version.)
     

    https://tinker-board.asus.com/download-list.html?product=tinker-board-2s 

    image.png

    @tooz,  As you said, can I get it in that version and proceed with it?

    image.png

    Like the image above.
    Can I download and use Tinker Board OS from the official site (https://tinker-board.asus.com/download-list.html?product=tinker-board-2s) )?

    Or, should I download it from the giturl you told me?

  9. Posted

    image.png

    The image above is Android Studio using mraa-2.2.0.aar.

    I need Uart control Tinker Board 2S.

    However, when you build an app through Tinkerboard using the mraa library, the app dies with the following error.

     

    [java.lang.UnsatisfiedLinkError: dlopen failed: library "libmraajava.so" not found]

     

    The error is suspect.
    I can't find libmraajava.so .
    However, the mraa-2.2.0.aar file does not contain libmraajava.so in jni.

    image.png

    https://github.com/TinkerBoard/TinkerBoard/wiki/Developer-Guide#mraa-library-for-android

     

    It doesn't work with what I received from the official address above, so what's the problem?

    image.png

    Code for the problem mraaJNI.class found by debugging.

    Additionally, when executing code to call GPIO, you get a [ libmraajava.so not found ] error as you go to the static try {} catch {} just above

     

    import mraa.Gpio

    import mraa.Dir

     

    var gpio = Gpio(1) // error code start...

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