基于单片机热敏电阻温度采集报警设计

1458下载地址 https://docs.qq.com/doc/DWEpnR2pOWU91b3p4?pub=1&dver=2.1.0

 

//头文件的声明
#include <reg51.h>
#include <stdio.h>
#include <intrins.h>


//宏定义温度上限变量
#define TempHigh  300


//定义数码管的位选通道，选择那个数码管显示
sbit w1=P2^0;
sbit w2=P2^1;
sbit w3=P2^2;
sbit w4=P2^3;

//定义继电器控制电路的IO口
sbit TempHighControl=P2^4;

//定义ADC0831和单片机的连接IO口
sbit CS_n=P1^0; 
sbit CLK=P1^1;
sbit DIO=P1^2;

//用于数码管显示的码表
unsigned char code table[]=
{
   0x3f,0x06,0x5b,0x4f,
   0x66,0x6d,0x7d,0x07,
   0x7f,0x6f,0x77,0x7c,
   0x39,0x5e,0x79,0x71
};

//控制数码管显示，选择第几个数码管亮，add可取1-4
void wei(unsigned char add)
{
	switch(add)
	{
		case 1:
			w1=0;
			w2=1;