51 microcontroller is a commonly used embedded microcontroller, and 485 bus communication protocol is currently one of the widely used communication protocols. It is a serial communication protocol that can achieve long-distance, high-speed, and reliable data transmission. The 485 bus communication protocol is widely used in fields such as industrial automation, smart homes, and energy monitoring.
Below is the source code of the Modbus communication routine for implementing RS485 on the 51 microcontroller:
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