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#include <stm32f4xx.h>
#include "delay.h"
#include "DHT11.h"
#include "LCD1602.h"
#include "SOUN.h"
#include "KEY_ExitInit.h"
#include "LED_INIT.h"
#include "HCSR04.h"
unsigned char move = 0x82;
unsigned char RH,RL,TH,TL;
unsigned char h0 = 0X38,h1 = 0X36;
unsigned char t0 = 0X32,t1 = 0X38;
unsigned char DATA[4];//存溫濕度數據
unsigned char Leg[4];//存超聲波
unsigned char R[7] = "SD:";
unsigned char H[7] = "WD:";
unsigned char L[7] = "Legth:";
unsigned char r[2] = "%";
unsigned char h[2] = "C";
////////////////////////// 讀DHT11數據及數據轉換 ///////////////////////////////////////
int DHT11_ReadDATA(void)
{
int i;
unsigned char RHTH[5]={0};
DHT11_Start();//開始信號
for(i=0;i<5;i++)
{
RHTH[i] = DHT11_ReadByte();//循環讀5次一字節剛好40bit
}
if(RHTH[0]+RHTH[1]+RHTH[2]+RHTH[3] == RHTH[4])
{
RH = RHTH[0];
RL = RHTH[1];
TH = RHTH[2];
TL = RHTH[3];
DATA[0]='0'+(RH/10);//數據顯示處理
DATA[1]='0'+(RH%10);
DATA[2]='0'+(TH/10);
DATA[3]='0'+(TH%10);
return 0;
}
else
{
return -1;
}
}
///////////////////////////// END //////////////////////////////////////////
//////////////////////////// 獲取超聲波數據及轉換////////////////////////
void HCSR04_data(void)
{
int a = 0;
a = HCSR04_GetLength();
Leg[0]='0'+(a/10);
Leg[1]='0'+(a%10);
a = a*100;
Leg[2] = '0'+(a%100)/10;
Leg[3] = '0'; // '0'+(a%1000) 只顯示到第三位，所以第四位寫入0
}
/////////////////////////// END ///////////////////////////////////////////
//////////////////////////// 顯示設定的閾值 ////////////////////////////////
void LCD_Config(void)
{
LCD_WRITE_StrDATA(1,1,"H:");
LCD_WRITE_char(1,3,h0);
LCD_WRITE_char(1,4,h1);
LCD_WRITE_StrDATA(2,1,"T:");
LCD_WRITE_char(2,3,t0);
LCD_WRITE_char(2,4,t1);
delay_ms(9);
}
/////////////////////////// END ///////////////////////////////////////
//////////////////////////// 顯示溫濕度和超聲波數值，及超過閾值后警報 ///////////////////////////////////
void LCD_Show(void)
{
while(1)
{
HCSR04_data();
delay_ms(30);
if(DHT11_ReadDATA() == 0)//讀取溫濕度成功
{
delay_ms(80);
LCD_WRITE_CMD( 0x0C );
DHT11_ReadDATA(); //接受數據
LCD_WRITE_StrDATA(1,1,R);
LCD_WRITE_StrDATA(2,1,H);
LCD_WRITE_char(1,4,DATA[0]);
LCD_WRITE_char(1,5,DATA[1]);
LCD_WRITE_StrDATA(1,6,r);
LCD_WRITE_StrDATA(1,9,L);
LCD_WRITE_char(2,4,DATA[2]);
LCD_WRITE_char(2,5,DATA[3]);
LCD_WRITE_char(2,6,0XDF);
LCD_WRITE_StrDATA(2,7,h);
LCD_WRITE_char(2,9,Leg[0]);
LCD_WRITE_char(2,10,Leg[1]);
LCD_WRITE_char(2,11,0xA5);
LCD_WRITE_char(2,12,Leg[2]);
LCD_WRITE_char(2,13,Leg[3]);
LCD_WRITE_StrDATA(2,14,"cm");
}
if(RH > ((h0-0x30)*10+(h1-0x30))|| TH < ((t0-0x30)*10+(t1-0x30)) )//正常
{
GPIO_SetBits(GPIOC,GPIO_Pin_7);
GPIO_ResetBits(GPIOC,GPIO_Pin_6);
GPIO_SetBits(GPIOB,GPIO_Pin_7);
}
if(RH <= ((h0-0x30)*10+(h1-0x30))|| TH >= ((t0-0x30)*10+(t1-0x30)) ) //警報
{
GPIO_SetBits(GPIOC,GPIO_Pin_6);
GPIO_ResetBits(GPIOC,GPIO_Pin_7);
GPIO_ResetBits(GPIOB,GPIO_Pin_7);
}
}
}
/////////////////////////// END ///////////////////////////////////
/////////////////////// 中斷服務函數 ,第一個按鍵切換顯示+光標移動////////////////////////////////////////
void EXTI0_IRQHandler(void)
{
static int Flag = 1;
switch (Flag)
{
case 1:
LCD_WRITE_CMD( 0x01 ); //清楚顯示
LCD_WRITE_CMD( 0x0f ); //開啟光標、顯示、閃爍
LCD_Config(); //切換顯示
LCD_WRITE_CMD( move );
delay_ms(5);break;
case 2:
LCD_WRITE_CMD( 0x0f );
move ++; //光標移動
LCD_WRITE_CMD( move );
delay_ms(5);break;
case 3:
LCD_WRITE_CMD( 0x0f );
move += 0x3f;
LCD_WRITE_CMD( move );
delay_ms(5);break;
case 4:
LCD_WRITE_CMD( 0x0f );
move ++;
LCD_WRITE_CMD( move );
delay_ms(5);break;
case 5:
move = 0x82; //光標復位
LCD_WRITE_CMD( 0x01 );
LCD_WRITE_CMD( 0x0C );
LCD_Show();
Flag = 0;
delay_ms(5);break;
}
Flag ++;
EXTI_ClearITPendingBit(EXTI_Line0);
}
///////////////////////// 中斷0 END ///////////////////////////////////
///////////////////////// 中斷 1 閾值加1 ///////////////////////////
void EXTI1_IRQHandler(void)
{
if(move == 0x82) //判斷光標位置
{
if((h0-0x30) >= 9)
{
h0 = 0x30;
}
else
{
h0 ++;
}
}
if(move == 0x83) //判斷光標位置
{
if((h1-0x30) >= 9)
{
h1 = 0x30;
}
else
{
h1 ++;
}
}
if(move == 0xc2) //判斷光標位置
{
if((t0-0x30) >= 9)
{
t0 = 0x30;
}
else
{
t0 ++;
}
}
if(move == 0xc3) //判斷光標位置
{
if((t1-0x30) >= 9)
{
t1 = 0x30;
}
else
{
t1 ++;
}
}
LCD_WRITE_CMD( 0x0c ); //為了看清楚，關閉光標的閃爍功能
LCD_Config(); //顯示
delay_ms(5);
EXTI_ClearITPendingBit(EXTI_Line1);
}
////////////////////////////// 中斷1 END ///////////////////////////////////////
///////////////////////////// 中斷 2 閾值加1 ////////////////////////////////
void EXTI2_IRQHandler(void)
{
if(move == 0x82)
{
if((h0-0x30) == 0)
{
h0 = 0x39;
}
else
{
h0 --;
}
}
if(move == 0x83)
{
if((h1-0x30) == 0)
{
h1 = 0x39;
}
else
{
h1 --;
}
}
if(move == 0xc2)
{
if((t0-0x30) == 0)
{
t0 = 0x39;
}
else
{
t0 --;
}
}
if(move == 0xc3)
{
if((t1-0x30) == 0)
{
t1 = 0x39;
}
else
{
t1 --;
}
}
LCD_WRITE_CMD( 0x0c );
LCD_Config();
delay_ms(5);
EXTI_ClearITPendingBit(EXTI_Line2);
}
///////////////////////////// 中斷 2 END //////////////////////////////////////
int main()
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
Systick_init();//滴答定時器的初始化---精準延時
LED_INIT(); //警報燈
SOUN_INIT(); //蜂鳴器
KEY_ExitInit(); //中斷gpio口初始化
LCD_INIT(); //LCD1602初始化
HCSR04_GPIO(); //超聲波gpio口初始化
HCSR04_TIM2_Config(); //定時器2設置
TIM2_IRQHandler(); //定時器中斷函數
LCD_Show(); //lcd1602顯示
return 0;
}

復制代碼

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