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Serial communication technology is to transmit data bit by bit in sequence, and only two data transmission lines are needed. Compared with parallel communication, although serial communication technology saves port consumption, it also reduces the data transmission rate.
There are two serial communication methods, namely synchronous communication and asynchronous communication. Synchronous communication can be understood as that the two parties in communication are controlled by the same clock line and perform synchronous data transmission. Common synchronous communication methods include I2C, SPI, etc.; asynchronous communication does not require a clock synchronization signal, and the sending device and the receiving device each select their own clock control to realize data transmission and reception. Common asynchronous communication includes UART, RS232, etc. https://www.cdebyte.com/Module-Lora
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