#!/usr/bin/python

import serial

ser = serial.Serial(
    port='/dev/ttyUSB0',\
    baudrate=115200,\
    parity=serial.PARITY_NONE,\
    stopbits=serial.STOPBITS_ONE,\
    bytesize=serial.EIGHTBITS,\
        timeout=1)

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

ser.write("rx\n")
ser.flush()

print(ser.readline())

ser.close()