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

while True:
    heart=bytearray([0x04,0x0E,0x0E,0x15,0x04,0x04,0x1F,0x04])
    sym=bytearray([0x04,0x1F,0x04,0x04,0x15,0x0E,0x0E,0x04])
    lcd.custom_char(0,heart)
    lcd.custom_char(1,sym)
    lcd.putstr(chr(0)+"hello"+chr(1))
    sleep(1)
    lcd.clear()