def wiringPiSetup():
  return 0

def pinMode(pin, mode):
  None

def digitalWrite(pin, signal):
  None

def delayMicroseconds(micro_seconds):
  None
def wiringPiSetup():
  return 0

def pinMode(pin, mode):
  None

def digitalWrite(pin, signal):
  None

def delayMicroseconds(micro_seconds):
  None