import machine
import time
import dht
from machine import I2C, Pin
from I2C_LCD import I2cLcd

DHT = dht.DHT22(machine.Pin(18))

i2c = I2C(scl=Pin(14), sda=Pin(13), freq=400000)
devices = i2c.scan()
if len(devices) == 0:
    print("No i2c device!")
else:
    for device in devices:
        print("I2C addr: "+hex(device))
        lcd = I2cLcd(i2c, device, 2, 16)


while True:
 DHT.measure()
 #print('temperature:',DHT.temperature(),'humidity:',DHT.humidity())
 lcd.move_to(0,0)
 lcd.putstr("temp:")
 lcd.putstr(str(DHT.temperature()))
 lcd.move_to(0,1)
 lcd.putstr("humid:")
 lcd.putstr(str(DHT.humidity()))
 time.sleep_ms(1000)