目录
一、主要功能
基于51单片机,通过ADC0808获取两路电压,通过LCD1602显示
二、硬件资源
基于KEIL5编写C++代码,PROTEUS8.15进行仿真,全部资源在页尾,提供安装包。
三、程序编程
#include <REGX52.H>
#include "intrins.h"
#include "LCD1602.h"
sbit CLOCK = P2^4;
sbit ST = P2^5;
sbit EOC =P2^6;
sbit OE = P2^7;
sbit aa = P3^4;
sbit bb = P3^5;
sbit cc = P3^6;
#define uchar unsigned char
#define uint unsigned int
int i =0;
uchar value;
uchar A1[3],A2[3];
unsigned int ADC,ADC1;
void delay(char x);
void Timer0_INT() interrupt 1
{
CLOCK = !CLOCK;
}
void main()
{
TMOD = 0x02;
TH0 = 0x20;
TL0 = 0x00;
IE = 0x82;
EA = 1; // 总中断开关
ET0 = 1; // T0定时器总中断开关
TR0 = 1;
LCD_Init();
LCD_ShowString(1,1,"-----DIANYA-----");
while(1)
{
for(i=0;i<25;i++)
{
aa=0;bb=0;cc=0;
ST = 1;
ST = 0;
while(EOC == 0);//正在转换
{
OE = 1;
}
ADC = P1;//ADC转换结果
OE=0;
delay(10);
ADC= ADC*1.96;
A1[0]= ADC/100;
A1[1]= (ADC/10)%10;
A1[2]= ADC%100;
LCD_ShowNum(2,1,A1[0],1);
LCD_ShowString(2,2,".");
LCD_ShowNum(2,3,A1[1],1);
LCD_ShowNum(2,4,A1[2],1);
LCD_ShowString(2,5,"V");
}
for(i=0;i<25;i++)
{
aa=1;bb=0;cc=0;
ST = 1;//产生启动转换的正脉冲信号
_nop_();
ST = 0;
_nop_();
while(EOC == 0);//正在转换
{
OE = 1;
}
ADC1 = P1;//ADC转换结果
OE=0;
delay(10);
ADC1 = ADC1*1.96;
A2[0]= ADC1/100;
A2[1]= (ADC1/10)%10;
A2[2]= ADC1%100;
LCD_ShowNum(2,10,A2[0],1);
LCD_ShowString(2,11,".");
LCD_ShowNum(2,12,A2[1],1);
LCD_ShowNum(2,13,A2[2],1);
LCD_ShowString(2,14,"V");
}
}
}
void delay(char x)
{
int i, k;
for(i = 0; i < x; i++)
for(k = 0; k < 120; k++);
}
四、实现现象
具体动态效果看B站演示视频:
基于51单片机的两路电压检测(ADC0808)
全部资料(源程序、仿真文件、安装包、演示视频):