C51單片機WIFI智能臺燈程序，熱釋電紅外感應，光敏電阻比例調節(jié)亮度

ID:720305 · 發(fā)表于 2021-4-1 15:50

電路原理圖如下：

單片機源程序如下:

#include "reg52.h"
#include "intrins.h"
#include "wifi.h"
#include "uart.h"
#include "keyboard.h"
#define FOSC 11059200L
#define T50MS (65536-FOSC/12/20) //1ms timer calculation method in 12T mode
#define BAUD 9600 //UART baudrate
#define pwm(m) CCAP0H = CCAP0L = m;
#define un "tang"
#define password "88888888"
#define dc "DEV-002"
typedef unsigned char BYTE;
typedef unsigned int WORD;
WORD count;
unsigned char falg_count;
uchar xdata tt[200]; //定義空數(shù)組用于AD0809取平均值
uchar FlagStart;
int scale;
uchar rsd_sec; //定義占空比比例，熱釋電計時秒變量
uchar sec,flag_auto;
uchar lum_mean;
uchar appcmd=99;//單片機收到的APP信號
bit bdata flag_rsd; //位定義自動切換的，閃爍標志，報警位標志，熱釋電動作標志，接近傳感器標志
bit flag_key;
bit finish=0;
sbit TEST_LED = P0^7;
sbit LED_ALARM = P0^0;
sbit rsd = P2^6;
/*Declare SFR associated with the ADC */
sfr ADC_CONTR = 0xBC; //ADC control register
sfr ADC_RES = 0xBD; //ADC high 8-bit result register
sfr ADC_LOW2 = 0xBE; //ADC low 2-bit result register
sfr P1ASF = 0x9D; //P1 secondary function control register
/*Define ADC operation const for ADC_CONTR*/
#define ADC_POWER 0x80 //ADC power control bit
#define ADC_FLAG 0x10 //ADC complete flag
#define ADC_START 0x08 //ADC start control bit
#define ADC_SPEEDLL 0x00 //420 clocks
#define ADC_SPEEDL 0x20 //280 clocks
#define ADC_SPEEDH 0x40 //140 clocks
#define ADC_SPEEDHH 0x60 //70 clocks
/*Declare SFR associated with the PCA */
sfr CCON = 0xD8; //PCA control register
sbit CCF0 = CCON^0; //PCA module-0 interrupt flag
sbit CCF1 = CCON^1; //PCA module-1 interrupt flag
sbit CR = CCON^6; //PCA timer run control bit
sbit CF = CCON^7; //PCA timer overflow flag
sfr CMOD = 0xD9; //PCA mode register
sfr CL = 0xE9; //PCA base timer LOW
sfr CH = 0xF9; //PCA base timer HIGH
sfr CCAPM0 = 0xDA; //PCA module-0 mode register
sfr CCAP0L = 0xEA; //PCA module-0 capture register LOW
sfr CCAP0H = 0xFA; //PCA module-0 capture register HIGH
sfr CCAPM1 = 0xDB; //PCA module-1 mode register
sfr CCAP1L = 0xEB; //PCA module-1 capture register LOW
sfr CCAP1H = 0xFB; //PCA module-1 capture register HIGH
sfr PCAPWM0 = 0xf2;
sfr PCAPWM1 = 0xf3;
void InitADC()
{
P1ASF = 0x04; //Open 8 channels ADC function
ADC_RES = 0; //Clear previous result
ADC_CONTR = ADC_POWER | ADC_SPEEDLL;
}
BYTE GetADCResult(BYTE ch)
{
ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ch | ADC_START;
_nop_(); //Must wait before inquiry
_nop_();
_nop_();
_nop_();
while (!(ADC_CONTR & ADC_FLAG));//Wait complete flag
ADC_CONTR &= ~ADC_FLAG; //Close ADC
return ADC_RES; //Return ADC result
}
void work()
{
uint lum_all;
uchar b,c;
for(b=0;b<200;b++) //將空數(shù)組tt【】內(nèi)數(shù)值整體左移一位
{
tt[b]=tt[b+1]; //將后一數(shù)值放到前一位置
}
tt[199] =GetADCResult(2); //將讀出的ad數(shù)值放入tt【49】
lum_all =0;
for(c=0;c<200;c++) //將tt【】內(nèi)數(shù)值相加
{
lum_all=lum_all+tt[c];
}
lum_mean=lum_all/200; //將總數(shù)/50取出平均值
if(qiehuan==0) //自動切換按鍵按下
{
delay(10); //去抖
if(qiehuan==0) //再次判斷按鍵按下
{
LED_ALARM =0;
flag_auto=!flag_auto; //自動模式標志位取反
if(flag_auto==1) //當切換到手動模式時首先將LED發(fā)光比例設置在50%
scale=128;
}
while(!qiehuan); //按鍵釋放松開按鍵后關閉蜂鳴器
LED_ALARM =1;
}
if(flag_auto==1)
{
if(add==0) //加鍵按下
{
delay(5);
if(add==0)
{
// LED_ALARM =0;
if(scale<=254)
scale++; //燈光比例++
if(scale>=255)
scale=255;
// if(add)
// LED_ALARM =1;
}
}
if(dec==0) //減鍵按下時
{
delay(5);
if(dec==0)
{
// LED_ALARM =0;
if(scale>255) scale=128;
if(scale>=1)
scale--; //燈光比例--
if(scale<=0)
scale=0;
// if(dec)
// LED_ALARM =1;
}
}
}
else
{
if(flag_rsd==1) //有人在范圍內(nèi)時
{
if(lum_mean<=90) scale=0; //判斷取出平均值大小小于30 發(fā)光強度0%
else if(lum_mean>=190) scale=255; //大于150 發(fā)光強度100%
else scale=(lum_mean-90)*2.55; //其他值時將其計算得到發(fā)光強度（計算目的是為了得到一個1-41之間的數(shù)值控制燈光變化）
}
else
{
scale=0; //沒有人在范圍內(nèi)時將燈光亮度調至0%
}
}
pwm(scale);
}
void main()
{
unsigned char sendlum[3];
unsigned char sendlev[3];
CCON = 0; //Initial PCA control register
//PCA timer stop running
//Clear CF flag
//Clear all module interrupt flag
CL = 0; //Reset PCA base timer
CH = 0;
CMOD = 0x02; //Set PCA timer clock source as Fosc/2
//Disable PCA timer overflow interrupt
CCAP0H = CCAP0L = 0x00; //PWM0 port output 50% duty cycle square wave
CCAPM0 = 0x42; //PCA module-0 work in 8-bit PWM mode and no PCA interrupt
CCAP1H = CCAP1L = 0xff; //PWM1 port output 0% duty cycle square wave
PCAPWM1 = 0x03;
CCAPM1 = 0x42; //PCA module-1 work in 8-bit PWM mode and no PCA interrupt
CR = 1; //PCA timer start run
SCON = 0x50; //8-bit variable UART
TMOD = 0x21; //Set Timer1 as 8-bit auto reload mode
TH1 = TL1 = -(FOSC/12/32/BAUD); //Set auto-reload vaule
TR1 = 1; //Timer1 start run
ES = 1; //Enable UART interrupt
TL0 = T50MS; //initial timer0 low byte
TH0 = T50MS >> 8; //initial timer0 high byte
TR0 = 1; //timer0 start running
ET0 = 1; //enable timer0 interrupt
EA = 1; //Open master interrupt switch
count=0;
flag_auto=1;
scale=128;
InitADC();
LED_ALARM =0;
initwifi();
LED_ALARM =1;
SendString("{\"cmd\":\"DR\",\"un\":\"");
SendString(un);
SendString("\",\"pwd\":\"");
SendString(password);
SendString("\",\"dc\":\"");
SendString(dc);
SendString("\"}");
finish=1;
while(1)
{
if(flag_auto==0)
LED_ALARM = ~rsd;
work();
if(appcmd ==0) //自動
{
flag_auto =0;
appcmd =99;
}
else if(appcmd==1) //切換到手動
{
flag_auto =1;
scale =128; //50%
appcmd =99;
}
else if(appcmd>1&&appcmd!=99) //1-7檔對應 2 3 4 5 6 7 8
{
scale = (appcmd-2)*36;
if(appcmd==8)
scale =255;
appcmd =99;
}
if(FlagStart==1)
{
sendlum[0] =lum_mean%1000/100+0x30;
sendlum[1] =lum_mean%100/10+0x30;
sendlum[2] =lum_mean%10+0x30;
sendlev[0] = scale%1000/100+0x30;
sendlev[1] = scale%100/10+0x30;
sendlev[2] = scale%10+0x30;
FlagStart=2;
SendString("{\"cmd\":\"DTP\",\"un\":\"");
SendString(un);
SendString("\",\"message\":{\"lum\":\"");
SendASC(sendlum[0]);
SendASC(sendlum[1]);
SendASC(sendlum[2]);
SendString("\",\"aut\":\"");
SendASC(flag_auto+0x30);
SendString("\",\"lev\":\"");
SendASC(sendlev[0]);
SendASC(sendlev[1]);
SendASC(sendlev[2]);
SendString("\"}}");
falg_count=0;
}
if(FlagStart>=3)
{
FlagStart =0;
SendString("{\"cmd\":\"DR\",\"un\":\"");
SendString(un);
SendString("\",\"pwd\":\"");
SendString(password);
SendString("\",\"dc\":\"");
SendString(dc);
SendString("\"}");
delay(100);
}
}
}
void tm0_isr() interrupt 1 using 1
{
TL0 = T50MS; //reload timer0 low byte
TH0 = T50MS >> 8; //reload timer0 high byte
count++; //50ms m++
if(count>=20) //到達1s時
{
falg_count++;
if(falg_count >= 2)
{
falg_count =0;
FlagStart++;
}
count=0; //m=0
if(rsd==0) //熱釋電無信號時
rsd_sec++; //熱釋電計時秒++
if(rsd_sec<=15&&rsd==1) //熱釋電計時秒小于等于30 并且熱釋電有信號時
{
rsd_sec=0; //將熱釋電秒清零
flag_rsd=1; //標志位置1 控制AD采集數(shù)值調節(jié)燈光亮度
}
else if(rsd_sec>15&&rsd==0) //熱釋電計時秒大于30 并且熱釋電無信號時
{
flag_rsd=0; //標志位置0 停止ad轉換關閉燈光
rsd_sec=0; //熱釋電計時秒清零
}
}
}
void Uart_Isr() interrupt 4 using 1
{
unsigned char dat;
if (RI)
{
RI = 0; //Clear receive interrupt flag
dat = SBUF;
if(SBUF == '\r' ||SBUF == '\n')
{
RsPoint =0;
}
if(SBUF !='\r' && SBUF !='\n' && SBUF !=' ')
{
RsBuf[RsPoint]=SBUF;
RsPoint++;
}
if(RsPoint>=60)
RsPoint = 0;
if(finish==1)
{
if(Flag_rec==1)
{
switch (Key_num)
{
case 'W': appcmd = dat-0x30; LED_ALARM =~LED_ALARM;FlagStart=1; break;
case 'T': appcmd = dat-0x30+2 ;LED_ALARM =~LED_ALARM;FlagStart=1; break;
}
Flag_rec=0;
}
if(dat=='W'||dat=='T')
{
LED_ALARM =~LED_ALARM;
Flag_rec=1;
Key_num=dat;
}
}
}
}