coherent wavemeter doesnt crashes the gui. Now it closes if error occurs, and...

coherent wavemeter doesnt crashes the gui. Now it closes if error occurs, and there is a reconnection button

myGUI.py

@@ -173,8 +173,8 @@ class GuiMainWindow(QMainWindow):
         self.layout866.addWidget(QtGui.QLabel(self.piezoA866.name), 1, 0), self.layout866.addWidget(self.piezoA866.sb, 1, 1)
         self.layout866.addWidget(QtGui.QLabel(self.piezoB866.name), 2, 0), self.layout866.addWidget(self.piezoB866.sb, 2, 1)
         self.layout866.addWidget(QtGui.QLabel(self.shutter866.name), 3, 0), self.layout866.addWidget(self.shutter866.cb, 3, 1)
-        self.layout866.addWidget(QtGui.QLabel("Blink"), 3, 2), self.layout866.addWidget(self.shutter866.blink_cb, 3, 3)
-        
+        self.layout866.addWidget(QtGui.QLabel("866 WM"), 3, 2), self.layout866.addWidget(self.shutterLED.cb, 3, 3)
+        self.layout866.addWidget(QtGui.QLabel("Blink"), 4, 0), self.layout866.addWidget(self.shutter866.blink_cb, 4, 1)        
         
         self.layout866_scan.addWidget(QtGui.QLabel('866 Scan piezo B'), 0, 0)
         self.layout866_scan.addWidget(QtGui.QLabel('start'), 1, 0), self.layout866_scan.addWidget(self.piezoB866.scan_sb_start, 1, 1)
@@ -189,7 +189,7 @@ class GuiMainWindow(QMainWindow):
         self.layoutPI.addWidget(QtGui.QLabel('Photoion'), 0, 0)
         self.layoutPI.addWidget(QtGui.QLabel(self.piezoA423.name), 1, 0), self.layoutPI.addWidget(self.piezoA423.sb, 1, 1)
         self.layoutPI.addWidget(QtGui.QLabel(self.shutter423.name), 2, 0), self.layoutPI.addWidget(self.shutter423.cb, 2, 1)
-        self.layoutPI.addWidget(QtGui.QLabel(self.shutterLED.name), 3, 0), self.layoutPI.addWidget(self.shutterLED.cb, 3, 1)
+        #self.layoutPI.addWidget(QtGui.QLabel(self.shutterLED.name), 3, 0), self.layoutPI.addWidget(self.shutterLED.cb, 3, 1)
         
         self.layout423_scan.addWidget(QtGui.QLabel('423 Scan piezo A'), 0, 0)
         self.layout423_scan.addWidget(QtGui.QLabel('start'), 1, 0), self.layout423_scan.addWidget(self.piezoA423.scan_sb_start, 1, 1)

myWidgets.py

@@ -213,11 +213,11 @@ class digital_control_signal(QWidget):
         
         if self.blink_cb.isChecked():
             self.blink_variable = self.cb.isChecked()
-            self.blink_timer.start(1000)
+            self.blink_timer.start(500)
             print("starting blinkin")
         else:
             self.blink_timer.stop()
-            self.DO.set_out( self.cb.isChecked() )
+            self.DO.set_out( not self.cb.isChecked() )
             print("finishing blink")
 
     def _blinkEvent(self):
@@ -319,9 +319,15 @@ class coherentWM(QWidget):
                 
                 def update_label():
                     
-                    value =  wav_coherent.read_measurement(wavCoh)
-                    unit = wav_coherent.check_unit(wavCoh)
-                   
+                    try:
+                        value =  wav_coherent.read_measurement(wavCoh)
+                        unit = wav_coherent.check_unit(wavCoh)
+                        
+                    except:
+                        print("coherent wm problem, closing communication")
+                        wavCoh.close()
+                        self.layoutWM.timer.stop()
+                        
                     try:
                         lcd.display(value + ' ' + unit)
                         
@@ -335,9 +341,20 @@ class coherentWM(QWidget):
                 self.layoutWM.timer.timeout.connect(update_label)
                 self.layoutWM.timer.start(500)  # every 10,000 milliseconds
                 self.layoutWM.setGeometry(300, 300, 250, 150)
-
                 
-                    
+                def reconnect():
+                    try:
+                        
+                        wavCoh= serial.Serial('COM11', timeout=1, rtscts=True)
+                        wavCoh.close()
+                        self.layoutWM.timer.start(500)
+                    except:
+                        print("cannot reconnect")
+                
+                self.reactivateButton = QPushButton('Reconnect')
+                self.reactivateButton.clicked.connect(reconnect)
+                
+                
                 combo = QComboBox()
                 combo.addItem("Frequency")
                 combo.addItem("Wavelength Vac")
@@ -363,4 +380,4 @@ class coherentWM(QWidget):
                 self.layoutWM.addWidget(lcd, 0, 0)
                 self.layoutWM.addWidget(combo, 1, 0)
                 self.dockWM.addWidget(self.layoutWM)    
-                
+                self.dockWM.addWidget(self.reactivateButton)
\ No newline at end of file

wav_coherent.py

@@ -34,6 +34,8 @@ def set_unit(wm, unit):
     """
     with wm as w:
         string_to_write = b'UNI ' + unit + b'\n'
+        
+        
         w.write(string_to_write)
         
 def check_unit(wm):
@@ -53,14 +55,17 @@ if __name__ == '__main__':
     import serial 
     import time
 
+    
     wavCoh=serial.Serial('COM11', timeout=1, rtscts=True)
     wavCoh.close()
     set_unit(wavCoh, b'F')
     print(read_measurement(wavCoh))
     
 
-    read_measurement(wavCoh)
-    print(a[12:20])
-    check_unit(wavCoh)
-    import os
-    scriptDirectory = os.path.dirname(os.path.realpath(__file__))
+    while(1):
+        print(read_measurement(wavCoh))
+        time.sleep(0.5)
+#    print(a[12:20])
+#    check_unit(wavCoh)
+#    import os
+#    scriptDirectory = os.path.dirname(os.path.realpath(__file__))