from machine import Pin
import utime
from time import sleep
from dht import DHT22

dht = DHT22(Pin(27)) 
led = Pin(3, Pin.OUT)
pir = Pin(7, Pin.IN, Pin.PULL_UP)
trigger = Pin(28,Pin.OUT)
echo = Pin(18, Pin.IN)
def ultra():
    trigger.low()
    utime.sleep_us(2)
    trigger.high()
    utime.sleep_us(5)
    trigger.low()
    while echo.value() == 0:
        signaloff = utime.ticks_us()
    while echo.value() ==1:
        signalon = utime.ticks_us()
    timepassed = signalon - signaloff
    distance = (timepassed * 0.0330) / 2
    print("The object can be seen from a distance of",distance, "cm")

while True:
    dht.measure()
    temp = dht.temperature()
    hum = dht.humidity()
    print("Temperature: " + str(temp) + "°C" + "   Humidity: " + str(hum) + "%")
    ultra()
    sleep(2)
    if pir.value() == 1:
        # Motion detected, turn on the LED
        led.high()
    else:
        # No motion, turn off the LED
        led.low()
    utime.sleep(0.1)