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@kidswong999 请问具体的代码怎么写
矩形识别后怎么获取h，或者串口发送h
stm32需要什么代码才能接收helloworld
有什么方法可以测量水的高度
还是不行啊，连接不了
可是还是连接不上
手动安装驱动后 还是有小感叹号
有什么方法可以测量水的高度
