Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
我知道如何怎样设置高电平信号，就是不太清楚在拍照时相关引脚怎样输出高电平信号？