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標(biāo)題: 基于51單片機(jī)的智能電風(fēng)扇設(shè)計(jì) [打印本頁]

作者: 1731062422 時(shí)間: 2017-11-10 14:19
標(biāo)題: 基于51單片機(jī)的智能電風(fēng)扇設(shè)計(jì)
以前寫過的一個(gè)東西有三檔調(diào)節(jié) 可以報(bào)警

#include <reg52.H>

#include <intrins.H>

#include <math.H>

#define uchar unsigned char

#define uint unsigned int

sbit led1 = P1^2;

sbit OUTPUT = P3^2; //電機(jī)驅(qū)動位1

sbit OUTPUT_0 = P3^3; //電機(jī)驅(qū)動位2

sbit RS = P1^1; //LCD命令及指令聲明

sbit LCDEN = P1^0; //LCD信號使能端聲明

sbit set_warn_temp = P1^4; //設(shè)置報(bào)警溫度

sbit KEY_F_UP = P1^5; //頻率上調(diào)按鈕；

sbit KEY_F_DOWN = P1^6; //頻率下調(diào)按鈕；

sbit KEY_F_auto = P1^7; //智能與手動轉(zhuǎn)換調(diào)速位

int feq,flag_c = 1,flag_auto = 1; //頻率初值相關(guān)位、檔位標(biāo)志位、智能與手動轉(zhuǎn)換調(diào)速位轉(zhuǎn)換標(biāo)志位

uint temp_2,warn_temp = 28; //提取溫度

void delayMs(uint a) //毫秒延時(shí)函數(shù)

{

uint i, j;

for(i = a; i > 0; i--)

for(j = 100; j > 0; j--);

}

void t_init() //定時(shí)器初始化

{

TMOD=0x01; //定時(shí)器0和定時(shí)器1都工作在方式1，16位計(jì)數(shù)器；

TH0 = 1000/256;

TL0 = 1000%256;

ET0 = 1;

EA = 1;

TR0 = 1;

}

void key_scan() //按鍵掃描

{

if(set_warn_temp == 0) //頻率上調(diào)鍵按下；

{

delayMs(5);

if(set_warn_temp == 0) //增大檔位

{

warn_temp++;

while(set_warn_temp == 0);

}

if(KEY_F_UP == 0) //頻率上調(diào)鍵按下；

{

delayMs(5);

if(KEY_F_UP == 0) //增大檔位

{

flag_c++;

if(flag_c > 3)

flag_c = 3;

while(KEY_F_UP == 0);

}

else if(KEY_F_DOWN == 0) //減小檔位

{

delayMs(5);

if(KEY_F_DOWN == 0)

{

flag_c--;

if(flag_c < 0)

flag_c = 0;

while(KEY_F_DOWN == 0);

}

else if(KEY_F_auto == 0) //智能與手動轉(zhuǎn)換；

{

delayMs(5);

if(KEY_F_auto == 0)

{

flag_auto = ~flag_auto;

while(KEY_F_auto == 0);

}

void flag_auto_change() //檔位隨溫度智能轉(zhuǎn)換

{

if(flag_auto == 1)

{

if(temp_2< 25)

{

flag_c = 0;

}

else if((temp_2>=27) && (temp_2<=29))

{

flag_c=1;

}

elseif((temp_2 >= 30) && (temp_2 <= 32))

{

flag_c = 2;

}

elseif((temp_2 >= 33 )&&( temp_2 <= 34) )

{

flag_c = 3;

}

void flag_feq() //檔位標(biāo)志位與頻率的轉(zhuǎn)換

{

if(flag_c == 0)

{

TR0 = 0;

OUTPUT = 0;

}

else

{

TR0 = 1;

switch(flag_c)

{

case 1:

feq = 63000;

break;

case 2:

feq = 33000;

break;

case 3:

feq = 13000;

break;

default:

break;

}

void timer0() interrupt 1 //定時(shí)器中斷函數(shù)

{

TH0 = (65536-feq)/256;

TL0 = (65536-feq)%256;

//TR1=1; //開定時(shí)器1；

OUTPUT = ~OUTPUT;

}

//LCD部分

void delayUs() //毫秒延時(shí)函數(shù)

{

_nop_();

}

void writeComm(uchar comm) //LCD命令函數(shù)

{

RS = 0;

P2 = comm;

LCDEN = 1;

delayUs();

LCDEN = 0;

delayMs(1);

}

void writeData(uchar dat) //寫數(shù)據(jù):RS=1,RW=0;

{

RS = 1;

P2 = dat;

LCDEN = 1;

delayUs();

LCDEN = 0;

delayMs(1);

}

voidinit() //LCD初始化

{

// dula = wela = 0;

writeComm(0x38);

writeComm(0x0c);

writeComm(0x06);

writeComm(0x01);

}

void writeString(uchar * str, uchar length) //送字符函數(shù)

{

uchar i;

for(i = 0; i < length; i++)

{

writeData(str);

}

/**//*****************************DS18B20溫度部分*******************************/

sbitds = P3^7; //溫度計(jì)IO引腳

void dsInit()

{

unsigned int i;

ds = 0;

i= 100;

while(i>0)

i--;

ds = 1;

i= 4;

while(i>0)

i--;

}

void dsWait()

{

unsigned int i;

while(ds);

while(~ds);

i = 4;

while(i > 0)

i--;

}

bit readBit()

{

unsigned int i;

bit b;

ds = 0;

i++;

ds = 1;

i++;

b= ds;

i= 8;

while(i>0) i--;

return b;

}

unsigned char readByte()

{

unsigned int i;

unsigned char j, dat;

dat = 0;

for(i=0; i<8; i++)

{

j = readBit();

dat = (j << 7) | (dat >> 1);

}

return dat;

}

void writeByte(unsigned char dat)

{

unsigned int i;

unsigned char j;

bit b;

for(j = 0; j < 8; j++)

{

b = dat & 0x01;

dat >>= 1;

if(b)

{

ds = 0;

i++;

ds = 1;

i = 8;

while(i>0)i--;

}

else

{

ds = 0;

i = 8;

while(i>0)

i--;

ds = 1;

i++;

}

void sendChangeCmd()

{

dsInit();

writeByte(0xcc);

writeByte(0x44);

}

void sendReadCmd()

{

dsInit()；

writeByte(0xcc);

writeByte(0xbe);

}

int getTmpValue()

{

unsigned int tmpvalue;

int value;

float t;

unsigned char low, high;

sendReadCmd();

low = readByte();

high = readByte();

tmpvalue = high;

tmpvalue <<= 8;

tmpvalue |= low;

value = tmpvalue;

t= value * 0.0625;

value = t * 100 + (value > 0 ? 0.5 : -0.5); //大于0加0.5, 小于0減0.5

return value;

}

void display(int v) //LCD顯示函數(shù)

{

uinta,b;

unsigned char count;

unsigned char datas[] = {0, 0, 0, 0, 0};

unsigned int tmp = abs(v);

uchar table[] = "warning";

uchar table1[] = "safe ";

datas[0] = tmp / 10000;

datas[1] = tmp % 10000 / 1000;

datas[2] = tmp % 1000 / 100;

datas[3] = tmp % 100 / 10;

datas[4] = tmp % 10;

a= datas[2];

b= datas[1];

temp_2= b * 10 + a;

if(temp_2 > warn_temp)

{

writeComm(0x80+ 9);

writeString(table, 7);

}

if(temp_2 <= warn_temp)

{

writeComm(0x80 + 9);

writeString(table1, 7);

}

writeComm(0x80+0x40);

if(v < 0)

{

writeString("- ", 2);

}

else

{

writeString("+ ", 2);

}

if(datas[0] != 0)

{

writeData('0' + datas[0]);

}

for(count = 1; count != 5; count++)

{

writeData('0' + datas[count]);

if(count == 2)

{

writeData('.');

}

flag_auto_change(); //檔位隨溫度智能轉(zhuǎn)換

writeComm(0x80+ 6);

writeData(0x30 + flag_c);

writeComm(0x80+ 0x40 + 13);

writeData(0x30 + warn_temp / 10);

writeData(0x30+ warn_temp % 10);

}

/*************************主函數(shù)部分***********************/

void main()

{

uchartable_lev[] = "level:" ;

uchartable_set[] = "set:" ;

sendChangeCmd();

init(); //LCD初始化

t_init(); //定時(shí)器初始化

OUTPUT_0= 0; //給電機(jī)驅(qū)動一端始終賦零

writeComm(0x80);

writeString(table_lev, 6);

writeComm(0x80 + 0x40 + 9);

writeString(table_set, 4);

while(1)

{

delayMs(1000); //溫度轉(zhuǎn)換時(shí)間需要750ms以上

key_scan(); //按鍵掃描

display(getTmpValue()); //顯示

flag_feq(); //檔位標(biāo)志位與頻率的轉(zhuǎn)換

sendChangeCmd();

}

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