Quick switch between HDMI and PiScreen

Forums Technical Support for PiScreen Quick switch between HDMI and PiScreen

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This topic contains 3 replies, has 2 voices, and was last updated by  RLBruderick 1 year, 1 month ago.

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  • #5116

    RLBruderick
    Participant

    My LCD is working. It’s awesome for the special interface I need. But I’d like to switch back and forth between a big HDMI screen and the little LCD.
    Is the quickest way to do that with 2 separate MicroSD cards?
    Or can I just comment/uncomment a couple of lines used to setup the LCD?

    #5118

    RLBruderick
    Participant

    To be very specific, I want to use the Arduino program to send sketches to the Arduino UNO connected to the USB. But the LCD shows a completely white screen when I launch Arduino. Sure, I can run load or write a sketch, upload it to the UNO, and control the UNO with Python when connected to HDMI, but to reboot for the LCD, I’ll lose my serial connection. Anyone experience this?

    #5119

    Mark Williams
    Keymaster

    I did a test and I got the same results. It is a problem with Java.
    I assume you are using Ardiuno from the apt-get repo. I was… this is an old version.
    I was able to download 1.6 and it worked on PiScreen

    try this;
    -remove arduino
    sudo apt-get remove arduino

    download Arduino for ARM from arduino.cc, the version i downloaded was arduino-1.6.11-linuxarm.tar.xz
    -extract
    tar xvf arduino-1.6.11-linuxarm.tar.xz
    -go into the new directory and run install.sh
    sudo ./install.sh

    -now try and run Arduino on PiScreen… it should open, but the window is too big.

    -Edit Arduino preferences
    nano ~/.arduino15/preferences.txt

    play around with the values below to change the window size;

    editor.window.height.default=300
    editor.window.height.min=290
    editor.window.width.default=400
    editor.window.width.min=400

    Mark --OzzMaker.com --
    BerryIMU --
    PiScreen - 3.5" TFT for the Rasspberry Pi

    #5321

    RLBruderick
    Participant

    Mark, thank you! I struggled a bit, but in the end it’s all working, thanks to your encouragement!
    I like the little LCD touchscreen on my RPi3. My Arduino sketches are easy to see, and they work great.

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