pass port from combobox

hemocube.py

@@ -68,7 +68,7 @@ void loop() {{
 
     sketch += H("hello.h", """
         void hello() {
-            Serial.println("hello smi7");
+            Serial.println("HemoCube QC");
         }
     """)
 
@@ -171,6 +171,7 @@ if __name__ == "__main__":
     cb = QComboBox()
     cb.setFixedSize(QSize(150, 30))
     ports = get_port()
+    cb.addItem("Select")
     for port in ports:
         cb.addItem(port)
     layout.addWidget(cb)
@@ -178,6 +179,7 @@ if __name__ == "__main__":
     flash_port = ""
     def selectionchange(i):
       flash_port = cb.currentText()
+      print("flash_port", flash_port)
     cb.currentIndexChanged.connect(selectionchange)
 
     # Create a QPushButton object with a caption on it
@@ -199,7 +201,7 @@ if __name__ == "__main__":
    # Close the application when the button is pressed
    # Here I am using slots & signals, which I will demonstrate later in this tutorial
 #    qbtn.clicked.connect(lambda:addLabel(layout, "Flashing..."))
-    qbtn.clicked.connect(lambda:flash(w, line_edit_led1.text(), line_edit_led2.text(), flash_port))
+    qbtn.clicked.connect(lambda: flash(w, line_edit_led1.text(), line_edit_led2.text(), cb.currentText()))
 
     window.setWindowTitle("HemoCube QC")
     window.setGeometry(400, 400, 800, 600)