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Code: Alles auswählen

import sys
import PyQt5.QtCore as core
import PyQt5.QtWidgets as widgets
import PyQt5.QtGui as gui
import PyQt5.uic as uic
from PyQt5.QtWidgets import QMessageBox
from PyQt5.QtCore import QObject, QTimer
import time
import serial

timer = QTimer()
app = widgets.QApplication(sys.argv) 
win = uic.loadUi("AM2320.ui")

def msgButtonClick():
	pass

def SerialFehler():
	msg = QMessageBox()
	msg.setStandardButtons(QMessageBox.Ok | QMessageBox.Cancel)
	msg.setIcon(QMessageBox.Critical)
	msg.setWindowTitle("FEHLER!")
	msg.setText("COM nicht vorhanden!")
	msg.setInformativeText("Kann nicht verbinden!")
	msg.setStandardButtons(QMessageBox.Ok)
	msg.buttonClicked.connect(msgButtonClick)
	returnValue = msg.exec()
	if returnValue == QMessageBox.Ok:
		exit()
				
try:
	ser = serial.Serial('COM11',19200, timeout=1)
	ser.close()
	win.statusBar.showMessage(ser.name + " VERBUNDEN") #STATUSBAR!!!!
	
except serial.serialutil.SerialException:
	win.statusBar.showMessage(">> COM NICHT VERBUNDEN! <<") #STATUSBAR!!!! 
	SerialFehler()
	
	
def einlesen():
	if ser.is_open:
		ser.close()
		
	ser.open()
	x = ser.in_waiting
	
	if x >  0:
		s = ser.read(x)
		print(s)
		s = str(s)
		print(s)
		print(s.rfind("F"))
		n = (s.rfind("F"))
		if n == 2:
			win.label_1.setText(s[3:8])
			
		if n == 3:
			win.label_2.setText(s[4:9])
			
		ser.close()

		
timer.timeout.connect(einlesen)
timer.start(1000) 
print(timer.isActive())

win.show()
sys.exit(app.exec_())