#print("Hello, ESP32!")
# 在这里写上你的代码 :-)
from machine import Pin
from time import sleep_ms
from machine import UART

uart1 = UART(1, baudrate=9600, tx=33, rx=32)
uart1.write('hello')  # write 5 bytes
uart1.read(5)         # read up to 5 bytes

led = Pin(14,Pin.OUT)
led1 = Pin(2,Pin.OUT)
sw = Pin(13,Pin.IN,Pin.PULL_UP)

while 1:
    led.value(1)
    led1.off()
    sleep_ms(500)
    led.off()
    led1.high()
    sleep_ms(500)

    print(sw.value())