import time
import board
import busio

i2c = busio.I2C(scl=board.GP1, sda=board.GP0)

while not i2c.try_lock():
    pass

try:
    addresses = i2c.scan()

    if not addresses:
        print("Nem találtam I2C eszközt.")
    else:
        for addr in addresses:
            if addr in (0x27, 0x3F) or (0x20 <= addr <= 0x27) or (0x38 <= addr <= 0x3F):
                print("LCD cím: 0x{:02X}".format(addr))

finally:
    i2c.unlock()

while True:
    time.sleep(1)