from machine import Pin
import time

key1=Pin(14,Pin.IN,Pin.PULL_UP)


led1=Pin(15,Pin.OUT)


led1_state=0

def key1_irq(key1):
    global led1_state
    time.sleep_ms(10)
    if  key1.value()==0:
        
        led1_state=not led1_state
        led1.value(led1_state)

        
if __name__=="__main__":
    led1.value(led1_state)
   
    key1.irq(key1_irq,Pin.IRQ_FALLING)
    
    
    while True :
        pass