Results 1 to 2 of 2

Thread: Error when writing command to switch off the projector

  1. #1
    Join Date
    Nov 2019
    Posts
    1
    Qt products
    Qt5
    Platforms
    Windows

    Default Error when writing command to switch off the projector

    Hello all.

    I need an urgent help in the project stuck since weeks. We have bought a projector and are trying to write a QT code to control the projector. We have used the QserialPort provided by QT as given:-https://code.qt.io/cgit/qt/qtserialport.git/tree/examples/serialport/terminal?h=5.13

    However, when I try to send the command "WT +LEDE =0" to switch off the projector, it don't get turned off.
    The program can connect to the COM3 serial port. but cannot send the command.

    Any help from the community will surely help us in the long run.

  2. #2
    Join Date
    Mar 2008
    Location
    Kraków, Poland
    Posts
    1,462
    Thanked 271 Times in 266 Posts
    Qt products
    Qt4
    Platforms
    Unix/X11 Windows

    Default Re: Error when writing command to switch off the projector

    Do you have correctly set transmission parameters (parity, word length, speed) ?
    What does it mean : cannot send command ?

Similar Threads

  1. Replies: 1
    Last Post: 29th June 2018, 11:24
  2. Replies: 0
    Last Post: 6th March 2014, 08:38
  3. Error During ./Configure Command
    By krakmind in forum Installation and Deployment
    Replies: 1
    Last Post: 1st September 2009, 17:47
  4. Readline command error
    By vermarajeev in forum General Programming
    Replies: 8
    Last Post: 2nd March 2007, 15:07

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide.