from machine import Pin
import time
import dht
led_temp = Pin(5, Pin.OUT)
led_humidity = Pin(15, Pin.OUT)  
sensor = dht.DHT22(Pin(14)) 

while True:
    sensor.measure()  
    temperature = sensor.temperature()  
    humidity = sensor.humidity() 
   
    if temperature > 40:
        led_temp.on()
    else:
        led_temp.off() 

    if humidity > 50:
        led_humidity.on() 
    else:
        led_humidity.off()  

    time.sleep(1) 


sketch.ino

diagram.json

from machine import Pin, SoftI2C
import time
import dht
from lcd_api import lcd_api
from i2c_lcd import I2cLcd

led_temp = Pin(5, Pin.OUT)
led_humidity = Pin(15, Pin.OUT)  
sensor = dht.DHT22(Pin(14)) 
I2C_ADDR = 0x27
totalRows = 2
totalColumns = 16
i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=1000)
lcd = I2cLcd(i2c, I2C_ADDR, totalRows, totalColumns)

# Khởi tạo biến humidity
humidity = -1

while True:
    sensor.measure()  
    temperature = sensor.temperature()
    new_humidity = sensor.humidity()  # Lấy độ ẩm mới

    # Kiểm tra độ ẩm
    if new_humidity != humidity:
        humidity = new_humidity
        lcd.clear()
        lcd.putstr("The Humidity: ")
        lcd.putstr(str(humidity))

    # Kiểm tra nhiệt độ
    if temperature > 40:
        led_temp.on()
    else:
        led_temp.off() 

    # Kiểm tra độ ẩm cho đèn LED
    if humidity > 50:
        led_humidity.on() 
    else:
        led_humidity.off()  

    time.sleep(1) 
