diff --git a/lib/wledControl.py b/lib/wledControl.py
index 4046e53..d2b86f9 100644
--- a/lib/wledControl.py
+++ b/lib/wledControl.py
@@ -61,10 +61,18 @@ class WLEDController:
         """Turn off all lights."""
         self.send_command('{"ps":"4"}')
 
-    def change_effect(self):
-        """Change the color effect."""
+    def blink_yellow(self):
+        """Blink in yellow."""
         self.send_command('{"ps":"5"}')
 
+    def blink_red(self):
+        """blink in red."""
+        self.send_command('{"ps":"7"}')
+
+    def blink_green(self):
+        """blink in green."""
+        self.send_command('{"ps":"6"}')
+
 # Example usage:
 if __name__ == "__main__":
     controller = WLEDController(port="/dev/serial/by-path/pci-0000:00:14.0-usbv2-0:1:1.0-port0")
diff --git a/workflow2.py b/workflow2.py
index 55a508f..8afc7a6 100644
--- a/workflow2.py
+++ b/workflow2.py
@@ -514,7 +514,7 @@ class Ui_MainWindow(object):
         self.yellowLightBtn.setText(_translate("MainWindow", "Turn on yellow LED"))
         self.greenLightBtn.setText(_translate("MainWindow", "Turn on green LED"))
         self.offLightBtn.setText(_translate("MainWindow", "Turn off all LEDs"))
-        self.blinkLightBtn.setText(_translate("MainWindow", "Blink last LED"))
+        self.blinkLightBtn.setText(_translate("MainWindow", "Blink Yellow LED"))
 
     def mousePressEvent(self, event):
         print("Das MainWindow wurde angeklickt.")
@@ -920,10 +920,20 @@ class LightControl(QtWidgets.QMainWindow):
         self.ui.yellowLightBtn.clicked.connect(self.yellow_on)
         self.ui.greenLightBtn.clicked.connect(self.green_on)
         self.ui.offLightBtn.clicked.connect(self.leds_off)
-        self.ui.blinkLightBtn.clicked.connect(self.leds_blink)
+        self.ui.blinkLightBtn.clicked.connect(self.blink_yellow)
         self.w = wledControl.WLEDController(port="/dev/serial/by-path/pci-0000:00:14.0-usbv2-0:1:1.0-port0")
-        # self.w.switch_to_green() # at appstart the light is green
-        # self.w.change_effect() # and switches to green blinking until the workflow gets started successfully
+        self.w.connect()
+        #self.w.switch_to_green() # at appstart the light is green
+        self.w.blink_green() # and switches to green blinking until the workflow gets started successfully#
+
+        # Connect app exit signal to the cleanup method
+        app.aboutToQuit.connect(self.cleanup)
+
+    def cleanup(self):
+        """Clean up resources and switch off LEDs."""
+        print("Cleaning up resources and switching off LEDs")
+        self.leds_off()  # Turn off LEDs
+        self.w.disconnect()  # Disconnect WLED controller
     
     def map_color(self, color):
         """
@@ -973,9 +983,17 @@ class LightControl(QtWidgets.QMainWindow):
         print("LEDs are off")
         self.w.turn_off_all()
 
-    def leds_blink(self):
-        print("Previous color is blinking")
-        self.w.change_effect()
+    def blink_yellow(self):
+        print("Yellow color is blinking")
+        self.w.blink_yellow()
+    
+    def blink_red(self):
+        print("Red color is blinking")
+        self.w.blink_red()
+
+    def blink_green(self):
+        print("Green color is blinking")
+        self.w.blink_green()
 
 if __name__ == "__main__":
     import sys