from hcsr04 import HCSR04
from time import sleep
from machine import Pin
ledr=Pin(23,Pin.OUT)
sensor=HCSR04(trigger_pin=5, echo_pin=4, echo_timeout_us=10000)
def Allumerled():
ledr.value(1)
sleep(2)
def eteindreled():
ledr.value(0)
sleep(2)
while True:
distance = sensor.distance_cm
if distance<10:
Allumerled()
else:
eteindreled()