The design idea is to adopt the modularization of the system hardware. According to the overall block diagram of the system and the structure block diagram of the system extension, it is mainly divided into LCD interface module signal, acquisition module, keyboard interface module, RS485 communication module and so on.The system hardware adopts the modular design idea. According to the overall system diagram and system expansion structure diagram, it is mainly divided into signal acquisition module, keyboard interface module, LCD interface module, RS485 communication module, etc.
The design idea is to adopt the modularization of the system hardware. According to the overall block diagram of the system and the structure block diagram of the system extension, it is mainly divided into LCD interface module signal, acquisition module, keyboard interface module, RS485 communication module and so on.<br>The system hardware adopts the modular design idea. According to the overall system diagram and system expansion structure diagram, it is mainly divided into signal acquisition module, keyboard interface module, LCD interface module, RS485 communication module, etc.
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