from servo import Servo
import time
motor=Servo(pin=21)
while True:
    motor.move(0) # turn 0 degree
    time.sleep(1)
    motor.move(90) # turn 90 degree
    time.sleep(1)
    motor.move(180) # turn 180 degree
    time.sleep(1)
    motor.move(90) # turn 90 degree
    time.sleep(1)
    motor.move(0) # turn 0 degree
    time.sleep(1)

    pin = machine.Pin(23, machine.Pin.OUT)
for i in range(10):
         pin.on()
         time.sleep(0.5)
         pin.off()
         time.sleep(0.5)

          trig.off()
    time.sleep_us(10)
    trig.on()
    time.sleep_us(10)
    trig.off()
    time.sleep_us(10)
    totaltime=machine.time_pulse_us(echo,1)
    print("Time:")
    print(totaltime)
    distance=(totaltime*0.34)/2
    print("Distance: ")
    print(distance)
    time.sleep(5)
    # led 
    for i in range(10):
         pin.on()
         time.sleep(0.5)
         pin.off()
         time.sleep(0.5)

'''

  '''