from machine import Pin
import time

echo_pin = 13
trig_pin = 11
led_pin = 18
buzer_pin = 15

Echo = Pin(echo_pin, Pin.IN)
Trig = Pin(trig_pin, Pin.OUT)
Led = Pin(led_pin, Pin.OUT)
Buzer = Pin(buzer_pin, Pin.OUT)

def get_distance():
    Trig.value(1)
    time.sleep_us(10)
    Trig.value(0)

    while Echo.value() == 0:
        start_time = time.ticks_us()
    while Echo.value() == 1:
        end_time = time.ticks_us()

    T = time.ticks_diff(end_time, start_time)
    distance = (T * 0.0343)/2
    distance_1 = round(distance, 2)

    return distance_1

while True:
    distance = get_distance()
    print("Distance: ", distance, " cm") 

    if distance < 100 :
        Buzer.value(1)
    else:
        Buzer.value(0)

    if  distance >= 100 :
        Led.value(1)
    else:
        Led.value(0)
    time.sleep(1)