'''
from hcsr04 import HCSR04
from time import sleep

sensor = HCSR04(trigger_pin=5, echo_pin=18, echo_timeout_us=10000)

while True:
    distance = sensor.distance_cm()
    print('Distance:', distance, 'cm')
    sleep(1)
    '''
    #write the script without the library interface the ultrasonic sensor
import machine
from machine import Pin
from time import sleep_us

echo=Pin(12,Pin.IN)
trig=Pin(13,Pin.OUT)
#x=machine.time_pulse_(echo,1)
#d=(0.0343*x)/2
while True:
    trig.value(0)
    sleep_us(2)
    trig.value(1)
    sleep_us(10)
    trig.value(0)
    
    x=machine.time_pulse_us(echo,1)
    distance=(0.034*x)/2
    print('Distance:', distance, 'cm')
    sleep_us(1)