传感器从覆盆子读取

1 回答

• 1

  您的代码只读取传感器一次，因此它永远不会更改，实现一个线程，以便读取不会中断主线程 .

  from PyQt4 import QtGui
  from PyQt4 import QtCore
  import sys
  
  import Adafruit_DHT
  
  
  class Thread(QtCore.QThread):
      data_sensors = QtCore.pyqtSignal(tuple)
  
      def __init__(self, parent=None):
          super(Thread, self).__init__(parent=parent)
  
      def run(self):
          while True:
              humidity, temperature = Adafruit_DHT.read_retry(Adafruit_DHT.DHT11, 4)
              self.data_sensors.emit((humidity, temperature))
  
  
  class TabWidget(QtGui.QTabWidget):
      def __init__(self, parent=None):
          super(TabWidget, self).__init__(parent=parent)
          tab1 = QtGui.QWidget()
          tab2 = QtGui.QWidget()
  
          self.setWindowTitle('Weather')
          self.resize(250, 150)
  
          vBoxlayout1 = QtGui.QVBoxLayout()
          vBoxlayout2 = QtGui.QVBoxLayout()
          self.lTemp = QtGui.QLabel('Temp={:0.1f}'.format(0))
          vBoxlayout1.addWidget(self.lTemp)
          self.lHumidity = QtGui.QLabel('Humidity={:0.1f}%'.format(0))
          vBoxlayout2.addWidget(self.lHumidity)
  
          vBoxlayout1.setAlignment(QtCore.Qt.AlignCenter)
          vBoxlayout2.setAlignment(QtCore.Qt.AlignCenter)
  
          tab1.setLayout(vBoxlayout1)
          tab2.setLayout(vBoxlayout2)
  
          self.addTab(tab1, "Temp")
          self.addTab(tab2, "Humidity")
  
          thread = Thread(self)
          thread.data_sensors.connect(self.update_Sensors)
          thread.start()
  
      def update_Sensors(self, data):
          humidity, temperature = data
          self.lTemp.setText('Temp={:0.1f}'.format(temperature))
          self.lHumidity.setText('Humidity={:0.1f}%'.format(humidity))
  
  
  def main():
      app = QtGui.QApplication(sys.argv)
      tabs = TabWidget()
      tabs.show()
      sys.exit(app.exec_())
  
  
  if __name__ == '__main__':
      main()
  

  回复于 2024-04-29T10:13:50+08:00