from machine import Pin, PWM
import dht
import time
sensor = dht.DHT22(Pin(15))
buzzer = PWM(Pin(14))
def play_tone(freq, duration):
    buzzer.freq(freq)
    buzzer.duty_u16(30000)
    time.sleep(duration)
    buzzer.duty_u16(0)
while True:
    try:
        sensor.measure()
        temp = sensor.temperature()
        hum = sensor.humidity()
        print("Temperature:", temp, "°C")
        print("Humidity:", hum, "%")
        if temp > 50:
            print("Too HOT!")
            for _ in range(5):
                play_tone(2000, 0.2)
        elif temp < 5:
            print("Too COLD!")
            for _ in range(3):
                play_tone(500, 0.5)
        if hum >30:
            print("Humidity HIGH!")
            play_tone(1500, 1)
        elif hum < 5:
            print("Humidity LOW!")
            play_tone(800, 0.3)
            time.sleep(0.2)
            play_tone(800, 0.3)
        print("----------------------")
    except OSError:
        print("Sensor error")
    time.sleep(2)