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我在openmv里写了字符串的串口输出 买了串口转485的板子 是不是直就可以连上板子出线到plc? openmv里应该不用写485相关的程序? 请看到的大佬指导一下 谢谢
https://forum.singtown.com/topic/3148/关于openmv连接plc