print("This practical project about weather monitoring system by using esp32")
from machine import I2C, Pin, Timer, PWM
from time import sleep
from dht import DHT22
import ssd1306

# For temperature sensor
dht22 = DHT22(Pin(12))

# For buzzer using OOP
buzzer = PWM(Pin(23), Pin.OUT)

# For LED
led1 = Pin(19, Pin.OUT)
led2 = Pin(18, Pin.OUT)

# FOR OLED
i2c = I2C(0, scl=Pin(22), sda=Pin(21))
oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)

# Function to read DHT
def readDht():
    dht22.measure()
    return dht22.temperature(), dht22.humidity()

# BUZZER
def play_buzzer(freq, duty, duration):
    buzzer = PWM(Pin(23), Pin.OUT)
    buzzer.freq(freq)
    buzzer.duty(duty)
    sleep(duration)
    buzzer.deinit()

while True:
    sleep(5)

    dht22.measure()
    print("Temperature: {}C".format(dht22.temperature()))
    print("Humidity: {}%".format(dht22.humidity()))

    temp = dht22.temperature()
    hum = dht22.humidity()

    # the range temperature and humidity
    if temp <= 30 and hum >= 80:
        print('Overcast weather detected!')

        for _ in range(5):  # Blink the LED 5 times
            play_buzzer(freq=1704, duty=400, duration=0.3)
            sleep(0.3)
            play_buzzer(freq=1, duty=0, duration=0.3)
            led1.value(1)
            sleep(0.3)
            led1.value(0)
            sleep(0.3)

    elif temp >= 35 and hum <= 60:
        print('Hot weather detected!')

        for _ in range(5):  # Blink the LED 5 times
            play_buzzer(freq=1704, duty=400, duration=0.3)
            sleep(0.3)
            play_buzzer(freq=1, duty=0, duration=0.3)
            led2.value(1)
            sleep(0.3)
            led2.value(0)
            sleep(0.3)

    else:
        sleep(1)
        play_buzzer(freq=1, duty=0, duration=5)

    oled.fill(0)
    oled.text('Temp: {:.2f}C'.format(temp), 10, 10)
    oled.text('Humi: {:.2f}%'.format(hum), 10, 20)
    oled.show()