單片機+維特COO2傳感器的二氧化碳測量程序與資料串口輸出數據

ID:246649 · 發表于 2022-12-1 16:45

制作出來的實物圖如下：

單片機源程序如下:

/*
本機器下載頻率11.0592M
將維特空氣質量串口接到串口2
串口1輸出原始數據--------------
*/
//-------------------------------------------------------------------------
#include <STC15W408AS.H>
#include <intrins.H>
#include <math.H>
#include <TM1637.C>
#include <STC15W_UART.H>
#include <STC15W_UART2.H>
#include <string.H>
//-------------------------------------------------------------------------
unsigned char COO2[6];
unsigned char TVOC[6];
unsigned int T0_nnn=0;
unsigned int T0_mmm=0;
unsigned char T0_time_out_flag=0;
unsigned int COO2_int=0;
unsigned int TVOC_int=0;
unsigned int abc=0;
//----------------------------------------------------------------------------------------------------
void Config_Timer0() //1000微秒@11.0592.000MHz
{
//----------------------------------------------------------------
// T0X12 T1X12 UART_MX06 T2R T2_C/T T2X12 EXT_RAM S1ST2
// 1 0 0 0 0 0 0 0
// 0 12分頻; T1 12分頻
// 1 1T模式
AUXR |= 0x80; //定時器時鐘1T模式
//EXT_RAM ==0 允許使用內部1024字節RAM
//---------------------------------------------------------------
//GATE C/T M1 M0 GATE C/T M1 M0
// 0 0 0 0 0 0 0 0
// T1 T0 模式0
// 自動重裝16位模式
TMOD &= 0xF0; //設置定時器模式，自動重裝初值*****************
//--------12T下定時器計算方法----------------------------------
// 24M
//65536-1000------------
// 12(分頻)
// 24M
//65536-1000------------ = 41536=0XA240H,明白了沒有？
// 1 （1分頻）
// 24M
//65536-500------------ = 53536=0XD120H,明白了沒有？
// 1 （1分頻）
// 24M
//65536-600------------ = 51136=0XC7C0H,明白了沒有？
// 1 （1分頻）
TL0 = 0xCD; //設置定時初值
TH0 = 0xD4; //設置定時初值
TF0 = 0; //清除TF1標志
TR0 = 0; //定時器1開始計時
ET0=0;
//---------- * * * * *---------PT0------------------------
// PS PT1 PX1 PT0 PX0
//IP= 0X02;
EA=1;
}
void Delay1000us() //@11.0592MHz
{
unsigned char i, j;
_nop_();
_nop_();
_nop_();
i = 11;
j = 190;
do
{
while (--j);
} while (--i);
}
void Get_Value(unsigned char flag)//CCS811數據解析
{
unsigned char *p;
unsigned char get_char=0;
p=Receive_DATA;
if(flag==1)
{
p=(unsigned char*)strstr((char *)Receive_DATA,"CO2:")+4;
while(*p!='p') //ppm
{
if ((*p>='0') && (*p<='9'))
{
/* 假如是'416'
'4'----0+4=4
'1'----40+1=41
'6'----410+6=416
*/
COO2_int=COO2_int*10;
get_char=*p;
get_char=get_char-0x30;
COO2_int=COO2_int+(get_char);
//SEND_CHAR_TO_SBUF(*p);
//SEND_CHAR_TO_SBUF('-');
//SEND_STRING_TO_SBUF(CONVERT_INT_TO_DECIMAL_STRING(COO2_int));
//SEND_STRING_TO_SBUF("\r\n");
//經過檢驗是對的
}
p++;
}
p=(unsigned char*)strstr((char*)Receive_DATA,"TVOC:")+4;
while(*p!='p') //ppb
{
if(*p>='0'&&*p<='9')
{
TVOC_int=TVOC_int*10+(*p-'0');
//經過檢驗是對的
//SEND_CHAR_TO_SBUF(*p);
}
p++;
}
if(strstr((char*)Receive_DATA,"CO2 = ")!=NULL && strstr((char*)Receive_DATA,"TVOS = ")!=NULL)
flag=0;
}
}
/*
//存儲在數組中的樣子--------------------------------
CO2:410ppm,TVOC:1ppb
0123456789ABCDEFGH
///解碼COO2--------------------------------------------------------------------------------------------
First_pos=Find_pos_Substr(Receive_DATA,"CO2:");
//輸出第一個數字
//SEND_STRING_TO_SBUF("First_pos=");
//SEND_STRING_TO_SBUF((unsigned char *)(CONVERT_INT_TO_DECIMAL_STRING(First_pos)));
//SEND_STRING_TO_SBUF("\r\n");
End_pos=Find_pos_Substr(Receive_DATA,"ppm");
//SEND_STRING_TO_SBUF("end_pos=");
//SEND_STRING_TO_SBUF(CONVERT_INT_TO_DECIMAL_STRING(End_pos));
//SEND_STRING_TO_SBUF("\r\n");
//SEND_STRING_TO_SBUF("COO2_uncode_data=");
i=0;
for(j=(First_pos+4);j<(End_pos);j++)
{
COO2[i]=Receive_DATA[j];
SEND_CHAR_TO_SBUF(COO2[i]);
Delay1000us();
i++;
}
//SEND_STRING_TO_SBUF("\r\n------------------------\r\n");
digital_num1= End_pos-(First_pos+4);
///解碼TVOC-----------------------------------------------------------------------------------------
First_pos=Find_pos_Substr(Receive_DATA,"TVOC:");
//輸出第一個數字
//SEND_STRING_TO_SBUF("First_pos=");
//SEND_STRING_TO_SBUF(CONVERT_INT_TO_DECIMAL_STRING(First_pos));
//SEND_STRING_TO_SBUF("\r\n");
End_pos=Find_pos_Substr(Receive_DATA,"ppb");
//SEND_STRING_TO_SBUF("end_pos=");
//SEND_STRING_TO_SBUF(CONVERT_INT_TO_DECIMAL_STRING(End_pos));
//SEND_STRING_TO_SBUF("\r\n");
//SEND_STRING_TO_SBUF("TVOC_uncode_data==");
i=0;
for(j=(First_pos+5);j<(End_pos);j++)
{
TVOC[i]=Receive_DATA[j];
SEND_CHAR_TO_SBUF(TVOC[i]);
Delay1000us();
i++;
}
//SEND_STRING_TO_SBUF("\r\n------------------------\r\n");
//計算出現數字的長度長度--------------
digital_num2= End_pos-(First_pos+5);
if (digital_num1>3)
{
COO2[0]= COO2[0]-'0';
COO2[1]= COO2[1]-'0';
COO2[2]= COO2[2]-'0';
COO2[3]= COO2[3]-'0';
COO2_int=COO2[0]*1000+COO2[1]*100+COO2[2]*10+COO2[3];
}
if (digital_num1==3)
{
COO2[0]= COO2[0]-'0';
COO2[1]= COO2[1]-'0';
COO2[2]= COO2[2]-'0';
COO2_int=COO2[0]*100+COO2[1]*10+COO2[2];
}
if (digital_num1==2)
{
COO2[0]= COO2[0]-'0';
COO2[1]= COO2[1]-'0';
COO2_int=COO2[0]*10+COO2[1];
}
if (digital_num1==1)
{
COO2[0]= COO2[0]-'0';
COO2_int=COO2[0];
}
//--------------------------------------------
if (digital_num2>3)
{
TVOC[0]= TVOC[0]-'0';
TVOC[1]= TVOC[1]-'0';
TVOC[2]= TVOC[2]-'0';
TVOC[3]= TVOC[3]-'0';
TVOC_int=TVOC[0]*1000+TVOC[1]*100+TVOC[2]*10+TVOC[3];
}
if (digital_num2==3)
{
TVOC[0]= TVOC[0]-'0';
TVOC[1]= TVOC[1]-'0';
TVOC[2]= TVOC[2]-'0';
TVOC_int=TVOC[0]*100+TVOC[1]*10+TVOC[2];
}
if (digital_num2==2)
{
TVOC[0]= TVOC[0]-'0';
TVOC[1]= TVOC[1]-'0';
TVOC_int=TVOC[0]*10+TVOC[1];
}
if (digital_num2==1)
{
TVOC[0]= TVOC[0]-'0';
TVOC_int=TVOC[0];
}
*/
void main()
{
unsigned char j=0;
unsigned char i=0;
unsigned char q1;
unsigned char q2;
unsigned char q3;
unsigned char q4;
unsigned char First_pos=0;
unsigned char End_pos=0;
unsigned char digital_num1=0;
unsigned char digital_num2=0;
unsigned char get_char=0;
// P17 16 15 14 13 12 11 10
// 0 0 0 0 0 0 0 0
// 0 0 0 0 0 0 0 0 //
P1M1 = P1M1 & 0x00; //
P1M0 = P1M0 | 0x00; //
// 0 0 0 0 0 0 0 0
// 0 0 0 0 0 0 0 0
P2M1 = P2M1 & 0x00; //
P2M0 = P2M0 | 0x00; //
//配置P3口為準雙向口**********************************************
//發現將
// 0 0 0 0 0 0 0 1
// 0 0 0 0 0 0 0 0
P3M1 = P3M1 & 0x00; //
P3M0 = P3M0 | 0x00; //
//配置P5口**********************************************
// 0 0 0 0 0 0 0 0
// 0 0 1 0 0 0 0 0
P5M1 = P5M1 & 0x00;
P5M0 = P5M0 | 0x00;
//--------------------------------------------------------------
Config_Timer0();
TR0=1;
//************************* *********************************
UART_INIT();
UART2_INIT();
//*************************************************************
//**********************************************************
SEND_STRING_TO_SBUF("start....\r\n");
//--------------------------------------------------------------------------
q1=16;
q2=16;
q3=0;
q4=0;
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(0,q1);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(1,q2);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(2,q3);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(3,q4);
//--------------------------------------------------------------------------
while(1)
{
//無壓力顯示 ,左邊位顯示00，右邊空
if (Receive_Frame_Finish_FLAG==1)
{
//串口助手得到的數據是正確的
SEND_STRING_TO_SBUF("---------------------\r\n");
SEND_STRING_TO_SBUF("get_Data_From_S2==");
SEND_STRING_TO_SBUF(Receive_DATA);
SEND_STRING_TO_SBUF("\r\n");
//將串口2得到的數據存放在全局變量 COO2_int和TVOC_int
COO2_int=0;
TVOC_int=0;
Get_Value(1);
SEND_STRING_TO_SBUF("get_COO2_From_S2==");
SEND_STRING_TO_SBUF(CONVERT_INT_TO_DECIMAL_STRING(COO2_int));
SEND_STRING_TO_SBUF("\r\n");
SEND_STRING_TO_SBUF("get_TVOC_From_S2==");
SEND_STRING_TO_SBUF(CONVERT_INT_TO_DECIMAL_STRING(TVOC_int));
SEND_STRING_TO_SBUF("\r\n");
Receive_Frame_Finish_FLAG=0;
}
//3秒時間到，顯示溫度，-------------------
if (T0_time_out_flag==1)
{
if (COO2_int>1000)
{
COO2[0]=COO2_int/1000;
COO2[1]=(COO2_int%1000)/100;
COO2[2]=(COO2_int%100)/10;
COO2[3]=COO2_int%10;
q1=COO2[0];
q2=COO2[1];
q3=COO2[2];
q4=COO2[3];
}
if ((COO2_int>=100) && (COO2_int<1000))
{
COO2[0]=COO2_int/100;
COO2[1]=(COO2_int%100)/10;
COO2[2]=COO2_int%10;
q1=16;
q2=COO2[0];
q3=COO2[1];
q4=COO2[2];
}
if ((COO2_int>=10) && (COO2_int<100))
{
COO2[0]=COO2_int/10;
COO2[1]=COO2_int%10;
q1=16;
q2=16;
q3=COO2[0];
q4=COO2[1];
}
if ((COO2_int>=1) && (COO2_int<10))
{
COO2[0]=COO2_int%10;
q1=16;
q2=16;
q3=16;
q4=COO2[0];
}
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(0,q1);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(1,q2);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(2,q3);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(3,q4);
//T0_time_out_flag==2,定時器計時的時間就是溫度持續的時間
T0_time_out_flag=2;
}
if (T0_time_out_flag==3)
{
if ((TVOC_int>=1) && (TVOC_int<10))
{
TVOC[0]=TVOC_int%10;
q1=16;
q2=16;
q3=16;
q4=TVOC[0];
}
if ((TVOC_int>=10) && (TVOC_int<100))
{
TVOC[0]=TVOC_int/10;
TVOC[1]=TVOC_int%10;
q1=16;
q2=16;
q3=TVOC[0];
q4=TVOC[1];
}
if ((TVOC_int>=100) && (TVOC_int<1000))
{
TVOC[0]=(TVOC_int/100);
TVOC[1]=(TVOC_int%100)/10;
TVOC[2]=TVOC_int%10;
q1=16;
q2=TVOC[0];
q3=TVOC[1];
q4=TVOC[2];
}
if (TVOC_int>1000)
{
TVOC[0]=(TVOC_int/1000);
TVOC[1]=(TVOC_int%1000)/100;
TVOC[2]=(TVOC_int%100)/10;
TVOC[3]=TVOC_int%10;
q1=TVOC[0];
q2=TVOC[1];
q3=TVOC[2];
q4=TVOC[3];
}
// T0_time_out_flag==0，就是濕度持續的時間---------------
T0_time_out_flag=0;
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(0,q1);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(1,q2);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(2,q3);
TM1637_WRITE_DISPLAY_BYTE_FIX_ADDRESS(3,q4);
}
}
}
void Timer0_int() interrupt 1
{
// T0_time_out_flag==0 就是濕度持續的時間-----------------
if (T0_time_out_flag==0)
{
T0_nnn++;
if (T0_nnn>1000)
{
T0_nnn=0;
T0_time_out_flag=1;
}
}
// T0_time_out_flag==2 就是溫度持續的時間-----------------
if (T0_time_out_flag==2)
{
T0_mmm++;
if (T0_mmm>3000)
{
T0_mmm=0;
T0_time_out_flag=3;
}
}
}