import machine 
from machine import SoftI2C, Pin 
from lcd_api import LcdApi 
from i2c_lcd import I2cLcd 

I2C_ADDR = 0x27 
totalRows = 4 
totalColumns = 20
 
i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=10000) 	#initializing the I2C method for ESP32 
#i2c = I2C(scl=Pin(5), sda=Pin(4), freq=10000) 		#initializing the I2C method for ESP8266

lcd = I2cLcd(i2c, I2C_ADDR, totalRows, totalColumns)

heart = bytearray([0x00,0x00,0x1B,0x1F,0x1F,0x0E,0x04,0x00]) 
face = bytearray([0x00,0x00,0x0A,0x00,0x11,0x0E,0x00,0x00])
lcd.custom_char(0, heart) 
lcd.custom_char(1, face)
lcd.move_to(0,3)
lcd.putstr(chr(0)+"ESP32 with I2C LCD"+chr(1))


'''
import machine
from machine import Pin, SoftI2C
from lcd_api import LcdApi
from i2c_lcd import I2cLcd
from time import sleep

I2C_ADDR = 0x27
totalRows = 2
totalColumns = 16

i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=10000)     #initializing the I2C method for ESP32
#i2c = I2C(scl=Pin(5), sda=Pin(4), freq=10000)       #initializing the I2C method for ESP8266

lcd = I2cLcd(i2c, I2C_ADDR, totalRows, totalColumns)

while True:
    lcd.putstr("I2C LCD Tutorial")
    sleep(2)
    lcd.clear()
    lcd.putstr("Lets Count 0-10!")
    sleep(2)
    lcd.clear()
    for i in range(11):
        lcd.putstr(str(i))
        sleep(1)
        lcd.clear()
'''

'''
import machine

sdaPIN=machine.Pin(21)  #for ESP32
sclPIN=machine.Pin(22)

i2c=machine.I2C(sda=sdaPIN, scl=sclPIN, freq=10000)   

devices = i2c.scan()
if len(devices) == 0:
 print("No i2c device !")
else:
 print('i2c devices found:',len(devices))
for device in devices:
 print("At address: ",hex(device))
'''