from time import sleep
from digitalio import DigitalInOut, Direction, Pull
import board

led = DigitalInOut(board.GP22)
led.direction = Direction.OUTPUT

btn = DigitalInOut(board.GP19)
btn.direction = Direction.INPUT
btn.pull = Pull.UP

prev_state = btn.value

mode = 0

while True:
    cur_state = btn.value
    if cur_state != prev_state:
        if not cur_state:
            print("BTN is down")
            mode +=1
            print(mode)
    if mode == 8:
        mode =0
    prev_state = cur_state