import machine 
import time
led_0 = machine. Pin(0,machine.Pin.OUT)
led_1 = machine. Pin(1,machine.Pin.OUT)
led_2 = machine. Pin(2,machine.Pin.OUT)
bUTTON = machine.Pin(28,machine.Pin.IN,machine.Pin.PULL_DPWN)

while True:
    if Button.value() ==1:
        led_0.on()
        print("LED 0 ON")
        time.sleep (1)
        led_0.off()
        print ("LED 0 OFF")
        time.sleep (1)

        led_1.on()
        print("LED 1 ON")
        time.sleep (1)
        led_1.off()
        print ("LED 1 OFF")
        time.sleep (1)
         
        led_2.on()
        print("LED 2 ON")
        time.sleep (0.5)
        led_2.off()
        print ("LED 2 OFF")
        time.sleep (0.5)

    else:
        led_0.off()
        led_1.off()
        led_2.off()