The system is composed of AT89C2051 single chip processor, ultrasonic transmitting circuit, receiving and magnifying circuit, data collecting circuit and displaying circuit.
系统由at89c 2051单片机、超声波发射电路、超声波接收放大电路、环境温度采集电路及显示电路组成。
The system is composed of AT89C2051 single chip processor, ultrasonic transmitting circuit, receiving and magnifying circuit, data collecting circuit and displaying circuit.
系统由at89c 2051单片机、超声波发射电路、超声波接收放大电路、环境温度采集电路及显示电路组成。
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