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

I2C_ADDR = 0x27
LCD_COLUMNS = 16
LCD_ROWS = 2

i2c = I2C(0, scl=Pin(22), sda=Pin(21), freq=400000) 
lcd = I2cLcd(i2c, I2C_ADDR, LCD_ROWS, LCD_COLUMNS)

dht_sensor = dht.DHT22(Pin(15))

lcd.clear()

while True:
    try:
        dht_sensor.measure()
        temp = dht_sensor.temperature()
        humidity = dht_sensor.humidity()
          
        print("Temp: {:.1f}°C".format(temp))
        print("Humidity: {:.1f}%".format(humidity))
        print("---")
        
        lcd.clear()
        lcd.move_to(0, 0)
        lcd.putstr("  Temp: {:.1f}".format(temp) + "\xDF" + "C")
        lcd.move_to(0, 1)
        lcd.putstr(" Humidity: {:.1f}%".format(humidity))
        lcd.move_to(0, 2)
    
        
    except OSError as e:
        print("Failed to read sensor.")
    
    sleep(1)