class SerialMgr(): def __init__(self): # Create protocol and give callback function self.protocol = Protocol(self.on_new_payload) # Create serial port manager self.serial = SerialPort(self.on_rx_data) self.serial.connect("COM5",115200) self.serial.run() def on_rx_data(self,c): print(c) self.protocol.decode(c) def on_new_payload(self,payload): print("decoded :",payload)