import serial
import time
import array as arr

STX = 2
ETX = 3

ser = serial.Serial(
    port='COM2',\
    baudrate=9600,\
    parity=serial.PARITY_NONE,\
    stopbits=serial.STOPBITS_ONE,\
    bytesize=serial.EIGHTBITS,\
        timeout=0)

print("connected to: " + ser.portstr)

#this will store the line
val = []
res = bytearray()
readString = 0
while True:
    read = bytes(ser.read(2))
    #print(read)
    if read == b'\x03':
        readString=0
        ## TODO:
        print(res)
        print(res).decode("CP852")

    else:
        if read == b'\x02':
            res = []
            readString = 1
        else:
            res += read


ser.close()