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+# ExtInt Wake-Up from Stop Mode Example%0A# This example demonstrates using external interrupts to wake up from low-power mode.%0A%0Aimport time, pyb, machine%0Afrom pyb import Pin, ExtInt%0A%0Adef callback(line):%0A    pass%0A%0Aled = pyb.LED(3)%0Apin = Pin(%22P5%22, Pin.IN, Pin.PULL_UP)%0Aext = ExtInt(pin, ExtInt.IRQ_FALLING, Pin.PULL_UP, callback)%0A%0A# Enter Stop Mode. Note the IDE will disconnect.%0Amachine.sleep()%0A%0Awhile (True):%0A    led.on()%0A    time.sleep(100)%0A    led.off()%0A    time.sleep(100)%0A

Add ExtInt wake-up example.