"""
MicroPython IoT Weather Station Example for Wokwi.com

To view the data:

1. Go to http://www.hivemq.com/demos/websocket-client/
2. Click "Connect"
3. Under Subscriptions, click "Add New Topic Subscription"
4. In the Topic field, type "wokwi-weather" then click "Subscribe"

Now click on the DHT22 sensor in the simulation,
change the temperature/humidity, and you should see
the message appear on the MQTT Broker, in the "Messages" pane.

Copyright (C) 2022, Uri Shaked

https://wokwi.com/arduino/projects/322577683855704658
"""

"""from machine import Pin, PWM, I2C
from time import sleep
from dht import DHT22
from lcd_api import LcdApi
from i2c_lcd import I2cLcd

# Khai báo cảm biến DHT22
dht_sensor = DHT22(Pin(4))

# Khai báo LED và Buzzer
led = Pin(25, Pin.OUT)
buzzer = PWM(Pin(26), freq=2000, duty_u16=0)  # Buzzer ban đầu không kêu

# Khai báo I2C cho LCD 2004
i2c = I2C(0, scl=Pin(22), sda=Pin(21), freq=400000)
lcd = I2cLcd(i2c, 0x27, 4, 20)


# Hàm hiển thị nhiệt độ, độ ẩm lên LCD
def display_temp_humidity(temp, hum):
    lcd.move_to(0, 0)
    lcd.putstr("Nhiet do: {:.1f} C  ".format(temp))  # Thêm dấu cách xóa ký tự thừa
    lcd.move_to(0, 1)
    lcd.putstr("Do am   : {:.1f} %  ".format(hum))
    lcd.move_to(0, 2)
    lcd.putstr("Canh bao: " + ("Nhiet do cao! " if temp > 25 else "Binh thuong   "))


# Vòng lặp chính
while True:
    try:
        dht_sensor.measure()
        temp = dht_sensor.temperature()
        hum = dht_sensor.humidity()

        display_temp_humidity(temp, hum)

        if temp > 25:
            # LED nhấp nháy và buzzer kêu nhanh
            for _ in range(5):
                led.on()
                buzzer.duty_u16(30000)  # Bật buzzer
                sleep(0.2)
                led.off()
                buzzer.duty_u16(0)  # Tắt buzzer
                sleep(0.2)
        else:
            led.off()
            buzzer.duty_u16(0)  # Tắt buzzer hoàn toàn
        
        sleep(2)

    except Exception as e:
        print("Lỗi: ", e)
"""
from machine import Pin, PWM, I2C
from time import sleep
from dht import DHT22
from lcd_api import LcdApi
from i2c_lcd import I2cLcd

# Khai báo cảm biến DHT22
dht_sensor = DHT22(Pin(4))

# Khai báo LED và Buzzer
led = Pin(25, Pin.OUT)
buzzer = PWM(Pin(26), freq=2000, duty_u16=0)  # Buzzer ban đầu không kêu

# Khai báo I2C cho LCD 2004
i2c = I2C(0, scl=Pin(22), sda=Pin(21), freq=400000)
lcd = I2cLcd(i2c, 0x27, 4, 20)

while True:
    try:
        dht_sensor.measure()
        temp = dht_sensor.temperature()
        hum = dht_sensor.humidity()

        # Hiển thị nhiệt độ & độ ẩm lên LCD
        lcd.clear()
        lcd.move_to(0, 0)
        lcd.putstr(f"Nhiệt độ: {temp:.1f} C")
        lcd.move_to(0, 1)
        lcd.putstr(f"Độ ẩm: {hum:.1f} %")

        # Nếu nhiệt độ > 25 độ C
        if temp > 25:
            for _ in range(5):
                led.on()
                buzzer.on()
                time.sleep(0.1)
                led.off()
                buzzer.off()
                time.sleep(0.1)
        else:
            led.off()
            buzzer.off()

        time.sleep(2)

    except Exception as e:
        lcd.clear()
        lcd.putstr("Lỗi cảm biến!")
        print("Lỗi:", e)
        time.sleep(2)