def btn_callback(self):
if not self.is_connected:
# Attempt to connect - check that the port is still connected
if self.comports.get() in PortManager.serial_ports():
# Port is still up n runnin'
self.btn["text"] = "Disconnect"
self.comports.config(state="disabled")
# Connect to the Arduino and start processing
self.msg_handler = Thread(target=MessageHandler.message_handler, args=(self.comports.get(),))
self.msg_handler.start()
# Change da flag fool!
self.is_connected = True
else:
# Port not found - refresh list
self.load_ports()
else:
# Disconnect from Arduino
MessageHandler.stop_handler()
self.msg_handler.join()
# Change the flag BACK!
self.is_connected = False
# Disconnect. Refresh port list
self.btn["text"] = "Connect"
self.comports.config(state="enabled")
self.load_ports()
def load_ports(self):
# Load all comports in pc. Select first item in the list if exists
self.comports['values'] = PortManager.serial_ports()
if len(self.comports['values']) > 0:
self.comports.current(0)
else:
self.comports.set("")