application help

[d_stranz]

QObject::startTimer: Timers can only be used with threads started with QThread

QTimer requires an event loop, since it uses signals and slots to communicate its status. That means you either have to start it in the main application (QApplication-based instance) or in a thread started by QThread. If you are trying to use QTimer somewhere else, it will not work.

[ludoQtCreator]

Okay, thanks.

I think I'm doing it wrong with QTimer and QThread.

I need to find the right order. I've tried a lot of things but can't get it right (especially with my sensors).

I'm trying to get a graphical interface (mainwindow).

I need to read the temperature file (QSetting) every 10 seconds (QTimer), all the time.

Furthermore, I need to write the temperature file (QSetting) every 15 seconds (QTimer), all the time.

And my pin management (GPIOs) needs to work every 1 second (QTimer), or not if possible (with slots and signals maybe), all the time.

And in my code on GitHub, it works.

But I encounter a problem when I write my temperatures via the sondes.cpp class
in temperatures(QSetting)

When I use the Qtimer without the probes thread class and with the run() function, I set a sleep(10) value, it works, but after a while my probes disconnect from the Raspberry Pi.