rom machine import Pin
from utime import sleep

RLed = Pin(23 ,Pin.OUT)
GLed = Pin(22 ,Pin.OUT)

Btn = Pin(21 , Pin.IN)

print("Hello, ESP32!")


while True:
    x = Btn.value()

    if (x > 0):
        RLed.off()

        GLed.on()
        sleep(3)
        GLed.off()


    else:
        RLed.on()