from machine import Pin
from utime import sleep

btn = Pin(15, Pin.IN, Pin.PULL_DOWN)
led = Pin(25, Pin.OUT)


led_state = False

prev_btn_state = 0

while True:
   
    btn_state = btn.value()
    
    
    if btn_state == 1 and prev_btn_state == 0:
        
        led_state = not led_state
        
        if led_state:
            led.on()
        else:
            led.off()
    
    
    prev_btn_state = btn_state
    
    sleep(0.1)