from machine import Pin
import dht
from time import sleep_ms, ticks_ms 
from machine import I2C, Pin 
from i2c_lcd import I2cLcd 

RELAY_CTRL_PIN =  19
relay = Pin(RELAY_CTRL_PIN, Pin.OUT)


sensor = dht.DHT22(Pin(26))
AddressOfLcd = 0x27
i2c = I2C(0, sda=Pin(22), scl=Pin(21), freq=400000)
lcd = I2cLcd(i2c, AddressOfLcd, 2, 16)
print(" Connected!")
prev_weather = ""
while True:
  sensor.measure()
  temp = sensor.temperature()
  hum = sensor.humidity()
  
  if (temp > 27 or hum > 30):
    relay.value(1)
  
  else:
    relay.value(0)

  if temp != prev_weather:
    lcd.move_to(1,0)
    lcd.putstr(f"temp  :{temp} C")
    lcd.move_to(1,1)
    lcd.putstr(f"Hum :{hum} %")
  
  else:
    time.sleep(0.5)