from machine import Pin
import time

relayIn = Pin(12, Pin.OUT)
relayOut = Pin(16, Pin.OUT)
trig = Pin(32, Pin.OUT)
echo = Pin(33, Pin.IN)
t = Ton = Toff = distance = 0

while True : 
    trig.on()
    time.sleep_us(10)
    trig.off()
    time.sleep_us(2)
    while echo.value() == 0:
        Toff = time.ticks_us()
    while echo.value() == 1:
        Ton = time.ticks_us()
    t = (Ton - Toff) / 2
    distance = int(t * 0.034)

    waterLevel = 400 - distance
    if  100< waterLevel <300 :
        relayIn.on()
        relayOut.on()
        print("Niveau moyen ")
        print(waterLevel)

    elif waterLevel < 100 :
        relayIn.on()
        relayOut.off()
        print("Niveau bas")
        print(waterLevel)

    else : 
        relayIn.off()
        relayOut.on()
        print("Niveau haut")
        print(waterLevel)