from machine import Pin, PWM
import utime

servo=PWM(Pin(21))
trigger=Pin(15))
echo=Pin(14))
servo.freq(50)
servo.duty_u16(position)

def getDistance():
    trigger.low()
    utime.sleep_ us(2)
    trigger.high()
    utime.sleep_us(5)
    trigger.low()
    while echo.value() == 0:
        signaloff = utime.ticks_us()
    timepassed = signalon - signaloff
    distance = (timepassed * 0.0343) / 2
    print("The distance from object from object is ", distance, "cm")
    return distance
while True:
    utime(0.01)
    if int(getDistance()) <= 10:
        servo.duty_16(position)
        utime.utime(0.3)
        servo.duty_u16(position)