import gpiod
import time

chip = gpiod.Chip("gpiochip1")
line = chip.get_line(12)

line.request( consumer="LChika", type=gpiod.LINE_REQ_DIR_OUT, default_vals=[0] )

while True :
    line.set_value(1)
    time.sleep(1)

    line.set_value(0)
    time.sleep(1)