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请问是否可以将两OPENMV的用于数据传输的串口直接相连，然后在其中一台使用uart.write()指令发送json字符串，另一台通过uart.read()指令进行接受实现通信？？
可以，A的TX接B的RX，A的RX接B的TX，A的GND接B的GND。