new_contents: import serial
  import time
  import RPi.GPIO as GPIO
  
  GPIO.setmode(GPIO.BCM)
  GPIO.setup(18, GPIO.OUT)
  
  port = serial.Serial("/dev/ttyAMA0", baudrate=1000000, timeout=3.0)
  
  while True:
    GPIO.output(18, GPIO.HIGH)
    port.write(bytearray.fromhex("FF FF 01 05 03 1E 32 03 A3"))
    time.sleep(0.1)
    GPIO.output(18, GPIO.LOW)
    time.sleep(3)
  
    GPIO.output(18,GPIO.HIGH)
    port.write(bytearray.fromhex("FF FF 01 05 03 1E CD 00 0b"))
    time.sleep(0.1)
    GPIO.output(18,GPIO.LOW)
    time.sleep(3)
  
subject: Create sweep.py