import time
from machine import I2C, SoftI2C, Pin,
from pico_i2c_lcd import I2cLcd

i2c = SoftI2C(sda=Pin(20),scl=Pin(19),freq=400000)

lcd_addr = i2c.scan()[0]
print(lcd_addr)

lcd = I2cLcd(i2c,lcd_addr,2,16)

text = '    Hello World!'            # Show scrolling information
print(len(text))

while True:
    tmp = text                     # Get the display information

    for i in range(0, len(text)):  
        lcd.move_to(len(text),1)   # Position cursor
        lcd.putstr(tmp)            # Display one by one
        tmp = tmp[1:]
        time.sleep(0.3)                 # Delay 800ms
        lcd.clear()

    for i in range(0, len(text)):  
        lcd.move_to(len(text)-i,0)   # Position cursor
        lcd.putstr(tmp)            # Display one by one
        tmp = text[:i+1]
        time.sleep(0.3)                 # Delay 800ms
        lcd.clear()