Among these parts AD7755 is the core of the electricity meter, and data transmitting and controlling is completed by means of AT89S51 transmitting at command to GSM module.
其中电能的计量采用AD 7755实现，数据的无线传输与控制利用单片机at89s51向短信收发模块发送AT指令来实现。
Among these parts AD7755 is the core of the electricity meter, and data transmitting and controlling is completed by means of AT89S51 transmitting at command to GSM module.
其中电能的计量采用AD 7755实现，数据的无线传输与控制利用单片机at89s51向短信收发模块发送AT指令来实现。
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