Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Special Interest Groups
  3. C++ Gurus
  4. How to implement Oscilloscope for realtime-plotting?
Forum Updated to NodeBB v4.3 + New Features

How to implement Oscilloscope for realtime-plotting?

Scheduled Pinned Locked Moved Solved C++ Gurus
4 Posts 2 Posters 1.3k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • _bhum_ Offline
    _bhum_ Offline
    _bhum
    wrote on last edited by
    #1

    Hello,
    I'm controlling temperature using PID and I wanna Plot PID output on Oscilloscope using raspberrypi. what would be the best way to implement oscilloscope for realtime plotting??

    Help would be appriciated.

    Thanks.

    Pablo J. RoginaP 1 Reply Last reply
    0
    • _bhum_ _bhum

      Hello,
      I'm controlling temperature using PID and I wanna Plot PID output on Oscilloscope using raspberrypi. what would be the best way to implement oscilloscope for realtime plotting??

      Help would be appriciated.

      Thanks.

      Pablo J. RoginaP Offline
      Pablo J. RoginaP Offline
      Pablo J. Rogina
      wrote on last edited by
      #2

      @_bhum could you confirm your requirements?
      do you want to use a Raspberry Pi as a oscilloscope? If so there are some options (although not involving Qt framework) like:

      1. PicBerry: Digital Oscilliscope and Function Generator (MatlibPlot)
      2. MagPi #71 oscilloscope: building an oscilloscope using a Raspberry Pi and an Arduino (Python/Pygame framework)

      If you indeed want to create a Qt application running in the Raspberry Pi and plotting the values read from the PID, I'd suggest go with Qwt (warning: I've never used it).

      Upvote the answer(s) that helped you solve the issue
      Use "Topic Tools" button to mark your post as Solved
      Add screenshots via postimage.org
      Don't ask support requests via chat/PM. Please use the forum so others can benefit from the solution in the future

      _bhum_ 1 Reply Last reply
      1
      • Pablo J. RoginaP Pablo J. Rogina

        @_bhum could you confirm your requirements?
        do you want to use a Raspberry Pi as a oscilloscope? If so there are some options (although not involving Qt framework) like:

        1. PicBerry: Digital Oscilliscope and Function Generator (MatlibPlot)
        2. MagPi #71 oscilloscope: building an oscilloscope using a Raspberry Pi and an Arduino (Python/Pygame framework)

        If you indeed want to create a Qt application running in the Raspberry Pi and plotting the values read from the PID, I'd suggest go with Qwt (warning: I've never used it).

        _bhum_ Offline
        _bhum_ Offline
        _bhum
        wrote on last edited by
        #3

        @Pablo-J.-Rogina Thank you sir. Im looking for Qt application ruuning inthe raspi.

        Pablo J. RoginaP 1 Reply Last reply
        0
        • _bhum_ _bhum

          @Pablo-J.-Rogina Thank you sir. Im looking for Qt application ruuning inthe raspi.

          Pablo J. RoginaP Offline
          Pablo J. RoginaP Offline
          Pablo J. Rogina
          wrote on last edited by
          #4

          @_bhum Ok, so Qwt library should help. You may want to use one of the examples I mentioned (i.e. the one from MagPi magazine) as a guideline to what/how they draw on screen (I know, it's Python code but it will help...)

          Upvote the answer(s) that helped you solve the issue
          Use "Topic Tools" button to mark your post as Solved
          Add screenshots via postimage.org
          Don't ask support requests via chat/PM. Please use the forum so others can benefit from the solution in the future

          1 Reply Last reply
          0

          • Login

          • Login or register to search.
          • First post
            Last post
          0
          • Categories
          • Recent
          • Tags
          • Popular
          • Users
          • Groups
          • Search
          • Get Qt Extensions
          • Unsolved