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arduino和openmv怎样双向通信?我参考着教程用串口通信来进行两者的通信,但是只能把openmv的数据传输给arduino,但是好像不能从arduino传输给openmv的样子。 我想让arduino根据openmv识别到与小球的距离来控制直流电机转,然后arduino到达那个位置之后再传一个信号给openmv,让它找另外一个颜色的物体,不知道应该怎么做到把消息从arduino传到openmv。