EAM PY

    #!/usr/bin/env python


           import time
           import serial


           ser = serial.Serial(

               port='/dev/ttyAMA0',
               baudrate = 9600,
               parity=serial.PARITY_NONE,
               stopbits=serial.STOPBITS_ONE,
               bytesize=serial.EIGHTBITS,
               timeout=1
           )
           counter=0


           while 1:
               ser.write('Write counter: %d \n'%(counter))
               time.sleep(1)
               counter += 1