这是一个馈电传感器的程序。包含功能如下：感应电路中是否有电流。通过两个led的状态显示是否有电。通过拨码开关确定地址。然后由485返回上位机。同时集成语音芯片PM66，实现语音提示-This is a feed sensor process. Includes the following functions: sensing whether the circuit current. Led by the state of the two shows if there is power. Dete