AIVoiceSystem/example/led_test/python_led_blink.py

#!/usr/bin/python
# -*- coding: UTF-8 -*-

import RPi.GPIO as GPIO
import time

#led灯的物理引脚
channel=32

GPIO.setmode(GPIO.BOARD)
GPIO.setwarnings(False)
GPIO.setup(channel, GPIO.OUT, initial=GPIO.HIGH)

try:
    while True:
        #led灯GPIO置高-灭
        GPIO.output(channel, GPIO.HIGH)
        print("X")
        time.sleep(1)

        #led灯GPIO置低-亮
        GPIO.output(channel, GPIO.LOW)
        print("O")
        time.sleep(1)
except KeyboardInterrupt:
    pass

#GPIO资源清理
GPIO.cleanup()