text: import utime
  from pyb import LED
  from machine import Pin
  from machine import UART
  from unm3driver import MessagePacket
  from unm3driver import Nm3
  
  
  # Wait for few seconds to turn on the 3.3V supply
  utime.sleep(3.0)
  
  # Switch ON 3.3V to TTL-RS232 converter
  p33v_1 = Pin('EN_3V3', mode=Pin.OUT, pull=Pin.PULL_UP, value=1)
  
  utime.sleep(2.0)
  
  # Initialize UART
  uart1 = UART(1, 9600)
  uart1.init(9600, bits=8, parity=None, stop=1, timeout=50, flow=0, timeout_char=0, read_buf_len=64)
  
  # Instantiate Nm3
  nm3 = Nm3(uart1)
  
  # Instantiate LEDs
  led_R = LED(1)
  led_G = LED(2)
  
  led_R.off()
  led_G.off()
  
  #utime.sleep(6.0)
  # Repeated Broadcast of "Hello World"
  for i in range(5):
      led_R.on()
      byte_count = nm3.send_broadcast_message(b'Hello World')
      print("{:d} bytes where broadcasted.".format(byte_count))
      led_R.off()
      utime.sleep(3.0)
  
  # Switch Off 3.3V to TTL-RS232 converter
  p33v_1.value(0)
  