#!/usr/bin/python
# -*- coding:utf-8 -*-
import serial

#ser = serial.Serial("/dev/ttyAMA0",115200)
ser = serial.Serial("/dev/ttyS0",115200)

print("serial test start ...")
ser.write('Hello Word!!!\n'.encode())
try:
    while True:
        ser.write(ser.read())
except KeyboardInterrupt:
    if ser != None:
        ser.close()