'''
闪烁LED
'''
from machine import Pin   #导入Pin模块
import time

led1 = Pin(25,Pin.OUT)    #创建LED对象
led2 = Pin(12,Pin.OUT)


while True:
    led1.on()             #红灯蓝灯交替闪烁
    led2.off()

    time.sleep_ms(1000)   #延时1s

    led1.off()
    led2.on()

    time.sleep_ms(1000)