from machine import Pin,I2C
from time import sleep
import dht
#from lcd_api import LcdApi
from pico_i2c_lcd import I2cLcd

LED = Pin(25,Pin.OUT,value=0)

Tem_Hum = dht.DHT22(Pin(4))

i2c = I2C(1,sda=Pin(2),scl=Pin(3),freq=100000)
i2c_addr = i2c.scan()
i2c_lcd_addr = int(hex(i2c_addr[0]))
lcd = I2cLcd(i2c, i2c_lcd_addr, 2, 16)

def lcd_show():
  lcd.clear()
  lcd.putstr("Tem:%3.1fC\n" %Tem)
  lcd.putstr("Hum:%3.1f%%" %Hum)
  lcd.putstr("adr:%d\n" %i2c_addr[0])

def main():
  Tem_Hum.measure()
  Tem = Tem_Hum.temperature()
  Hum = Tem_Hum.humidity()

  while True:
    self.lcd_show()
    LED.value(not LED.value())
    print('Tem:%3.1fC' %Tem)
    print('Hum:%3.1f%%' %Hum)
    print(i2c_lcd_addr)
    i2c.writeto(0x27, 'hello')
    sleep(5)
    print(LED.value())

if __name__=="__main__":
  main()