#displaying the temprature and humidity on i2c led and oled
import machine 
from machine import SoftI2C, Pin 

from lcd_api import LcdApi 
from i2c_lcd import I2cLcd
from ssd1306 import SSD1306_I2C

from time import sleep

import dht
sensor = dht.DHT22(Pin(4))

I2C_ADDR_LCD = 0x27
I2C_ADDR_OLED = 0x3c
oled_width = 128
oled_height = 64 
lcd_Rows = 2 
lcd_Columns = 16

i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=10000) 	#initializing the I2C method for ESP32 

lcd = I2cLcd(i2c, I2C_ADDR_LCD, lcd_Rows, lcd_Columns)
oled = SSD1306_I2C(oled_width, oled_height, i2c, I2C_ADDR_OLED)


oled.show()

while True:
  try:
    sleep(2)
    sensor.measure()
    temp = sensor.temperature()
    hum = sensor.humidity()
    temp_f = temp * (9/5) + 32.0
    
    lcd.move_to(0,0)
    lcd.putstr('room temp:'+str(temp)+'C')
    lcd.move_to(0,1)
    lcd.putstr('humidity:'+str(hum)+'%')

    oled.text('Temp in C:'+str(temp)+'C', 0, 26, 1)
    oled.text('Temp in F:'+str(temp_f)+'F', 0, 36, 1)
    oled.text('Humidity:'+str(hum)+'%', 0, 46, 1)
    oled.show()
    oled.fill(0)    #to clear the screen
  except OSError as e:
    print('Failed to read sensor.')