Python zeljo konju\

import serial

connected = False

locations=['/dev/ttyUSB0','/dev/ttyUSB1','/dev/ttyUSB2','/dev/ttyUSB3','/dev/ttyACM0']

for device in locations:
    try:
        print "Trying...",device
        ser = serial.Serial(device, 9600)
        break
    except:
        print "Failed to connect on",device
while not connected:
    serin = ser.read()
    connected = True

## open text file to store the current
text_file = open("Merenje.txt", 'r+')
## read serial data from arduino and
## write it to the text file 'position.txt'
while 1:
    if ser.inWaiting():
        x=ser.read()
        print(x)
        text_file.write(x)
        if x=="\n":
             ## text_file.seek(0)
             text_file.truncate()
        text_file.flush()
text_file.close()
ser.close()