old_contents: #!/usr/bin/env python
  from Arduino import Arduino
  import time
  
  
  def Blink(led_pin, baud, port=""):
      """
      Blinks an LED in 1 sec intervals
      """
      board = Arduino(baud, port=port)
      board.pinMode(13, "OUTPUT")
      while True:
          board.digitalWrite(led_pin, "LOW")
          print board.digitalRead(led_pin)  # confirm LOW (0)
          time.sleep(1)
          board.digitalWrite(led_pin, "HIGH")
          print board.digitalRead(led_pin)  # confirm HIGH (1)
          time.sleep(1)
  
  
  def softBlink(led_pin, baud, port=""):
      """
      Fades an LED off and on, using
      Arduino's analogWrite (PWM) function
      """
      board = Arduino(baud, port=port)
      i = 0
      while True:
          i += 1
          k = i % 510
          if k % 5 == 0:
              if k > 255:
                  k = 510 - k
              board.analogWrite(led_pin, k)
  
  
  def adjustBrightness(pot_pin, led_pin, baud, port=""):
      """
      Adjusts brightness of an LED using a
      potentiometer.
      """
      board = Arduino(baud, port=port)
      while True:
          time.sleep(0.01)
          val = board.analogRead(pot_pin) / 4
          print val
          board.analogWrite(led_pin, val)
  
  
  def PingSonar(pw_pin, baud, port=""):
      """
      Gets distance measurement from Ping)))
      ultrasonic rangefinder connected to pw_pin
      """
      board = Arduino(baud, port=port)
      pingPin = pw_pin
      while True:
          duration = board.pulseIn(pingPin, "HIGH")
          inches = duration / 72. / 2.
          # cent = duration / 29. / 2.
          print inches, "inches"
          time.sleep(0.1)
  
  
  def LCD(tx, baud, ssbaud, message, port=""):
      """
      Prints to two-line LCD connected to
      pin tx
      """
      board = Arduino(baud, port=port)
      board.SoftwareSerial.begin(0, tx, ssbaud)
      while True:
          board.SoftwareSerial.write(" test ")
  
  if __name__ == "__main__":
      Blink(13, '9600')
  
new_contents: #!/usr/bin/env python
  from Arduino import Arduino
  import time
  
  
  def Blink(led_pin, baud, port=""):
      """
      Blinks an LED in 1 sec intervals
      """
      board = Arduino(baud, port=port)
      board.pinMode(led_pin, "OUTPUT")
      while True:
          board.digitalWrite(led_pin, "LOW")
          print board.digitalRead(led_pin)  # confirm LOW (0)
          time.sleep(1)
          board.digitalWrite(led_pin, "HIGH")
          print board.digitalRead(led_pin)  # confirm HIGH (1)
          time.sleep(1)
  
  
  def softBlink(led_pin, baud, port=""):
      """
      Fades an LED off and on, using
      Arduino's analogWrite (PWM) function
      """
      board = Arduino(baud, port=port)
      i = 0
      while True:
          i += 1
          k = i % 510
          if k % 5 == 0:
              if k > 255:
                  k = 510 - k
              board.analogWrite(led_pin, k)
  
  
  def adjustBrightness(pot_pin, led_pin, baud, port=""):
      """
      Adjusts brightness of an LED using a
      potentiometer.
      """
      board = Arduino(baud, port=port)
      while True:
          time.sleep(0.01)
          val = board.analogRead(pot_pin) / 4
          print val
          board.analogWrite(led_pin, val)
  
  
  def PingSonar(pw_pin, baud, port=""):
      """
      Gets distance measurement from Ping)))
      ultrasonic rangefinder connected to pw_pin
      """
      board = Arduino(baud, port=port)
      pingPin = pw_pin
      while True:
          duration = board.pulseIn(pingPin, "HIGH")
          inches = duration / 72. / 2.
          # cent = duration / 29. / 2.
          print inches, "inches"
          time.sleep(0.1)
  
  
  def LCD(tx, baud, ssbaud, message, port=""):
      """
      Prints to two-line LCD connected to
      pin tx
      """
      board = Arduino(baud, port=port)
      board.SoftwareSerial.begin(0, tx, ssbaud)
      while True:
          board.SoftwareSerial.write(" test ")
  
  if __name__ == "__main__":
      Blink(13, '9600')
  
subject: Update examples.py