#!/bin/bash

# 导出 GPIO 80
echo 80 > /sys/class/gpio/export

# 设置为输出
echo "out" > /sys/class/gpio/gpio80/direction

# 设置为高电平
echo "1" > /sys/class/gpio/gpio80/value
echo "GPIO 80 set to HIGH"
sleep 5  # 等待 5 秒

# 设置为低电平
echo "0" > /sys/class/gpio/gpio80/value
echo "GPIO 80 set to LOW"
sleep 5  # 等待 5 秒

# 再次设置为高电平
echo "1" > /sys/class/gpio/gpio80/value
echo "GPIO 80 set to HIGH again"
sleep 5  # 等待 5 秒

# 最后设置为低电平
echo "0" > /sys/class/gpio/gpio80/value
echo "GPIO 80 set to LOW again"

# 释放 GPIO 80
echo 80 > /sys/class/gpio/unexport