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串口、COM口、UART口, TTL、RS-232、RS-485有啥区别
本文引用地址: 首先,串口、UART口、COM口、USB口是指的物理接口形式(硬件)。而TTL、RS-232、RS-485是指的电平标准(电信号)。 串口:串口是一个泛称 ...
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