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Display the CPU temperature of the raspberry pi card on qt

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  • J Offline
    J Offline
    julie546
    wrote on 4 Jun 2021, 07:12 last edited by julie546 6 Apr 2021, 07:16
    #1

    Hi all ,
    I am working on the raspberry pi 4 card with the qt I used a lot of sensors so I'm afraid that the card heats up so I would like to display the CPU temperature of the raspberry pi card on qt, j did a search on the internet but found nothing.
    can you help me please

    J 1 Reply Last reply 4 Jun 2021, 07:14
    0
    • J julie546
      4 Jun 2021, 07:12

      Hi all ,
      I am working on the raspberry pi 4 card with the qt I used a lot of sensors so I'm afraid that the card heats up so I would like to display the CPU temperature of the raspberry pi card on qt, j did a search on the internet but found nothing.
      can you help me please

      J Offline
      J Offline
      jsulm
      Lifetime Qt Champion
      wrote on 4 Jun 2021, 07:14 last edited by
      #2

      @julie546 said in Display the temperature of the raspberry pi card on qt:

      temperature of the raspberry pi card

      What would that be? CPU temperature?

      https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • S Offline
        S Offline
        sierdzio
        Moderators
        wrote on 4 Jun 2021, 07:17 last edited by
        #3

        If you mean CPU temperature, it can be read from: "/sys/class/thermal/thermal_zone0/temp". It returns temperature in C * 1000. So 53069 means 53.069 degrees Celsius.

        (Z(:^

        J 1 Reply Last reply 4 Jun 2021, 07:38
        5
        • S sierdzio
          4 Jun 2021, 07:17

          If you mean CPU temperature, it can be read from: "/sys/class/thermal/thermal_zone0/temp". It returns temperature in C * 1000. So 53069 means 53.069 degrees Celsius.

          J Offline
          J Offline
          julie546
          wrote on 4 Jun 2021, 07:38 last edited by julie546 6 Apr 2021, 07:38
          #4

          @sierdzio yes CPU temperature, theres any exemple please, i would like to display that on the QT

          J 1 Reply Last reply 4 Jun 2021, 07:40
          0
          • J julie546
            4 Jun 2021, 07:38

            @sierdzio yes CPU temperature, theres any exemple please, i would like to display that on the QT

            J Offline
            J Offline
            jsulm
            Lifetime Qt Champion
            wrote on 4 Jun 2021, 07:40 last edited by
            #5

            @julie546 You simply read the file /sys/class/thermal/thermal_zone0/temp
            https://doc.qt.io/qt-5/qfile.html

            https://forum.qt.io/topic/113070/qt-code-of-conduct

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            4 Jun 2021, 07:12

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