import RPi.GPIO as GPIO
import time

#servo2PIN = 7
servo1PIN = 8
GPIO.setmode(GPIO.BCM)
#GPIO.setup(servo2PIN, GPIO.OUT)
GPIO.setup(servo1PIN, GPIO.OUT)

p1 = GPIO.PWM(servo1PIN, 50) # GPIO PWM with 50Hz
#p2 = GPIO.PWM(servo2PIN, 50)
p1.start(2.5) # Initialization
#p2.start(2.5) # Initialization


try:
  while True:
    p1.ChangeDutyCycle(2.5)
    #GPIO.output(servo1PIN,GPIO.LOW)    
    time.sleep(0.5)      
    p1.ChangeDutyCycle(5)
    #GPIO.output(servo1PIN,GPIO.LOW)    
    time.sleep(0.5)
    p1.ChangeDutyCycle(7.5)
    #GPIO.output(servo1PIN,GPIO.LOW)    
    time.sleep(0.5)    
    p1.ChangeDutyCycle(10)
    #GPIO.output(servo1PIN,GPIO.LOW)
    time.sleep(0.5)
    p1.ChangeDutyCycle(12.5)
    #GPIO.output(servo1PIN,GPIO.LOW)
    time.sleep(0.5)
    p1.ChangeDutyCycle(10)
    #GPIO.output(servo1PIN,GPIO.LOW)    
    time.sleep(0.5)
    p1.ChangeDutyCycle(7.5)
    #GPIO.output(servo1PIN,GPIO.LOW)    
    time.sleep(0.5)
    p1.ChangeDutyCycle(5)
    #GPIO.output(servo1PIN,GPIO.LOW)    
    time.sleep(0.5)
except KeyboardInterrupt:
  p1.stop()
 # p2.stop()  
  GPIO.cleanup()