单片机18B20单总线测试温度高温低温报警 2017-12-18

#include <reg52.h> #define uchar unsigned char #define uint unsigned int sbit DS=P2^2;           //温度传感器接口 sb ...

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通过单片机测自动换挡测量0-500v直流电压 2017-12-18

#include<reg52.h> #include<intrins.h> #define uint unsigned int  #define uchar unsigned char sbit P23=P2^3; sbit P35=P3^5; sbit P ...

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