DIY_oled显示屏+ds18b20 显示温度和时间单片机程序

ID:298663 · 发表于 2019-6-11 13:05

电路原理图如下：

单片机源程序如下:

#include "STC15W.H"
#include "iic.h"
//#include "zifu.h"
#include "delay.h"
#include "stdio.h"
#include "intrins.h"
#include "temp.h"
/*******定义时间变量********************/
unsigned int count=0;
unsigned int count1=9;
unsigned int second0;
unsigned int second1;
unsigned int min0;
unsigned int min1;
unsigned int hour0;
unsigned int hour1;
unsigned char s[3];
unsigned char h1[1],h0[1],m1[1],m0[1],s1[1],s0[1];
/****************************************************/
bit flag = 0; //定义秒针闪烁的标志位
/**********************定义温度的参数变量*****************/
code unsigned char float_tab[16]={0,1,1,2,3,3,4,4,5,6,6,7,8,8,9,9};//小数表
unsigned int Display_Digit[]={0,0,0,0};
unsigned char wendu=0;
unsigned char aa,bb;
unsigned char CurrentT=0;
unsigned char Temp_Value[]={0x00,0x00};
unsigned char DS18B20_IS_OK;
unsigned char bai[1],shi[1],ge[1];
/********************************************************/
/* 定时器0的配置**************************************/
void Timer0Init() //定时50ms出发一次中断
{
AUXR &= 0x7F;
TMOD &= 0xF0;
TL0 = 0x00;
TH0 = 0x4C;
//TF0 = 0;
TR0 = 1;
ET0=1;
EA=1;
}
void TIMER0() interrupt 1
{
count++; //50毫秒触发一次
if(count==20) //定时为1秒
{
count=0;second0+=1; flag=~flag;
}
if(second0>9)
{
second0=0;second1+=1;
}
if(second1>5)
{
second1=0;min0+=1;
}
if(min0>9)
{
min0=0;min1+=1;
}
if(min1>5)
{
min1=0;hour0+=1;
}
if(hour1<2)
{
if(hour0>9)
{
hour0=0;hour1+=1;
}
}
if(hour1==2)
{
if(hour0>3)
{
second0=0;second1=0;
min0=0;min1=0;
hour0=0;hour1=0;
}
}
}
//读取温度
void Read_Temperature()
{
if(Init_DS18B20()==1)
DS18B20_IS_OK=0;
else
{
WriteOneByte(0xcc); //跳过序列号
WriteOneByte(0x44); //启动温度转换
Init_DS18B20();
WriteOneByte(0xcc);
WriteOneByte(0xbe); //读取温度
Temp_Value[0] = ReadOneByte(); //低八位
Temp_Value[1] = ReadOneByte(); //高八位
DS18B20_IS_OK=1;
}
}
void main()
{
Timer0Init() ;
Initial_M096128x64_ssd1306();
OLED_CLS();
Delay_ms(5);
while(1)
{
Read_Temperature();
if((Temp_Value[1]&0xf8)==0xf8) //判断高5位，如果都为1则是负数
{
Temp_Value[1] = ~Temp_Value[1]; //如果为负数。高八位需要取反，第八位需要取反后加1.
Temp_Value[0] = ~Temp_Value[0]+1;
if(Temp_Value[0]==0x00)
Temp_Value[1]++;
wendu = 1;
}
else{wendu = 0;}
aa=Temp_Value[0]&0x0f; //小数点后一位算法
bb=aa*0.0625*10;
CurrentT= ((Temp_Value[0]&0xf0)>>4) | ((Temp_Value[1]&0x07)<<4); //整数值
Display_Digit[1] = CurrentT/10; //百位 CurrentT%1000/100;
Display_Digit[2] = CurrentT%10; //十位 CurrentT%100/10;
Display_Digit[3] = bb%10; //个位 CurrentT%10;
OLED_P8x16Str(0,0,"PARA_SYSTEM-V0");
OLED_ShowCHinese(0,2,0); //当
OLED_ShowCHinese(16,2,1); //前
OLED_ShowCHinese(32,2,2); //温
OLED_ShowCHinese(48,2,3); //度
OLED_P8x16Str(64,2,":");
//当温度为负数的时候，显示-号
if(wendu==1)
{
OLED_P8x16Str(72,2,"-");
}
else
{
OLED_P8x16Str(72,2," ");
}
sprintf(bai,"%d",Display_Digit[1]);
OLED_P8x16Str(80,2,bai);
sprintf(shi,"%d",Display_Digit[2]);
OLED_P8x16Str(88,2,shi);
OLED_P8x16Str(96,2,".");
sprintf(ge,"%d",Display_Digit[3]);
OLED_P8x16Str(104,2,ge);
OLED_ShowCHinese(0,4,4); //时
OLED_ShowCHinese(16,4,5); //间
OLED_P8x16Str(32,4,":");
sprintf(h1,"%d",hour1);
OLED_P8x16Str(40,4,h1);
sprintf(h0,"%d",hour0);
OLED_P8x16Str(48,4,h0);
if(flag==1)
{
OLED_P8x16Str(56,4,":");
}
else
{
OLED_P8x16Str(56,4," ");
}
sprintf(m1,"%d",min1);
OLED_P8x16Str(64,4,m1);
sprintf(m0,"%d",min0);
OLED_P8x16Str(72,4,m0);
if(flag==1)
{
OLED_P8x16Str(80,4,":");
}
else
{
OLED_P8x16Str(80,4," ");
}
sprintf(s1,"%d",second1);
OLED_P8x16Str(88,4,s1);
sprintf(s0,"%d",second0);
OLED_P8x16Str(96,4,s0);
Delay_ms(10);
}
}

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ID:648535 · 发表于 2019-11-28 10:44

这个函数的作用是什么啊？

ID:195752 · 发表于 2019-12-31 16:31

学习，正想显示温度

ID:605938 · 发表于 2020-3-16 21:46

请问12864的驱动程序是怎么写啊，能给我个例成和新手能够看懂的程序吗，谢谢

ID:125616 · 发表于 2020-7-20 23:23

OLED_P8x16Str 大神请问，这个函数是显示小数的吗

ID:401598 · 发表于 2020-7-22 08:06

DIY精神万岁！

ID:856401 · 发表于 2021-4-11 22:23

yuanweilong789 发表于 2020-7-20 23:23
OLED_P8x16Str 大神请问，这个函数是显示小数的吗

这个是OLED显示字符串的，它第一行就是显示引号里面的字符串

ID:966104 · 发表于 2021-9-20 08:19

正想学习彩屏……。

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DIY_oled显示屏+ds18b20 显示温度和时间 单片机程序

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DIY_oled显示屏+ds18b20 显示温度和时间单片机程序