夏普红外测距传感器
红外测距传感器，具备10-100cm厘米测距，5v供电，led屏，指定距离灯光语音报警
红外测距传感器利用ADC获取指定电压变化
void GetVolt()
{
u8 i;
for(i=0;i<160;i++)
{
temp+=RegularConvData_Tab[i];
}
temp=temp/160;
Volt1=temp*3300/4096;
if(150010-100cm测距根据adc获取的电压变化获取距离公式
void GetDistance()
{
u32 x;
x = Volt1;
//µÚÒ»¸öºìÍâÓú¯Êý
if(2450<=Volt1)
{
Distance = 63.426 - 0.018*x;
}
if(1801<=Volt1&&Volt1<2450)
{
Distance = 70.344 - 0.0206*x;
}
if(1000<=Volt1&&Volt1<1801)
{
Distance = 100 - 0.04*x;
}
if(780<=Volt1&&Volt1<1000)
{
Distance = 184.18 - 0.1245*x;
}
if(700<=Volt1&&Volt1<780)
{
Distance = 172.5 - 0.125*x;
}
if(0将获取的距离值放在led屏幕上显示
利用iic来链接led屏
并配置相关led功能函数
void IIC_Start()
{
OLED_SCLK_Set() ;
OLED_SDIN_Set();
OLED_SDIN_Clr();
OLED_SCLK_Clr();
}
/**********************************************
//IIC Stop
**********************************************/
void IIC_Stop()
{
OLED_SCLK_Set() ;
// OLED_SCLK_Clr();
OLED_SDIN_Clr();
OLED_SDIN_Set();
}
void IIC_Wait_Ack()
{
//GPIOB->CRH &= 0XFFF0FFFF; //ÉèÖÃPB12ΪÉÏÀÊäÈëģʽ
//GPIOB->CRH |= 0x00080000;
// OLED_SDA = 1;
// delay_us(1);
//OLED_SCL = 1;
//delay_us(50000);
/* while(1)
{
if(!OLED_SDA) //ÅжÏÊÇ·ñ½ÓÊÕµ½OLED Ó¦´ðÐźÅ
{
//GPIOB->CRH &= 0XFFF0FFFF; //ÉèÖÃPB12ΪͨÓÃÍÆÃâÊä³öģʽ
//GPIOB->CRH |= 0x00030000;
return;
}
}
*/
OLED_SCLK_Set() ;
OLED_SCLK_Clr();
}
/**********************************************
// IIC Write byte
**********************************************/
void Write_IIC_Byte(unsigned char IIC_Byte)
{
unsigned char i;
unsigned char m,da;
da=IIC_Byte;
OLED_SCLK_Clr();
for(i=0;i<8;i++)
{
m=da;
// OLED_SCLK_Clr();
m=m&0x80;
if(m==0x80)
{OLED_SDIN_Set();}
else OLED_SDIN_Clr();
da=da<<1;
OLED_SCLK_Set();
OLED_SCLK_Clr();
}
}
/**********************************************
// IIC Write Command
**********************************************/
void Write_IIC_Command(unsigned char IIC_Command)
{
IIC_Start();
Write_IIC_Byte(0x78); //Slave address,SA0=0
IIC_Wait_Ack();
Write_IIC_Byte(0x00); //write command
IIC_Wait_Ack();
Write_IIC_Byte(IIC_Command);
IIC_Wait_Ack();
IIC_Stop();
}
/**********************************************
// IIC Write Data
**********************************************/
void Write_IIC_Data(unsigned char IIC_Data)
{
IIC_Start();
Write_IIC_Byte(0x78); //D/C#=0; R/W#=0
IIC_Wait_Ack();
Write_IIC_Byte(0x40); //write data
IIC_Wait_Ack();
Write_IIC_Byte(IIC_Data);
IIC_Wait_Ack();
IIC_Stop();
}
void OLED_WR_Byte(unsigned dat,unsigned cmd)
{
if(cmd)
{
Write_IIC_Data(dat);
}
else {
Write_IIC_Command(dat);
}
}
/********************************************
// fill_Picture
********************************************/
void fill_picture(unsigned char fill_Data)
{
unsigned char m,n;
for(m=0;m<8;m++)
{
OLED_WR_Byte(0xb0+m,0); //page0-page1
OLED_WR_Byte(0x00,0); //low column start address
OLED_WR_Byte(0x10,0); //high column start address
for(n=0;n<128;n++)
{
OLED_WR_Byte(fill_Data,1);
}
}
}
/***********************Delay****************************************/
void Delay_50ms(unsigned int Del_50ms)
{
unsigned int m;
for(;Del_50ms>0;Del_50ms--)
for(m=6245;m>0;m--);
}
void Delay_1ms(unsigned int Del_1ms)
{
unsigned char j;
while(Del_1ms--)
{
for(j=0;j<123;j++);
}
}
//×ø±êÉèÖÃ
void OLED_Set_Pos(unsigned char x, unsigned char y)
{ OLED_WR_Byte(0xb0+y,OLED_CMD);
OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0f),OLED_CMD);
}
//¿ªÆôOLEDÏÔʾ
void OLED_Display_On(void)
{
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDCÃüÁî
OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON
OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON
}
//¹Ø±ÕOLEDÏÔʾ
void OLED_Display_Off(void)
{
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDCÃüÁî
OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF
OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF
}
//ÇåÆÁº¯Êý,ÇåÍêÆÁ,Õû¸öÆÁÄ»ÊǺÚÉ«µÄ!ºÍûµãÁÁÒ»Ñù!!!
void OLED_Clear(void)
{
u8 i,n;
for(i=0;i<8;i++)
{
OLED_WR_Byte (0xb0+i,OLED_CMD); //ÉèÖÃÒ³µØÖ·£¨0~7£©
OLED_WR_Byte (0x00,OLED_CMD); //ÉèÖÃÏÔʾλÖáªÁе͵ØÖ·
OLED_WR_Byte (0x10,OLED_CMD); //ÉèÖÃÏÔʾλÖáªÁиߵØÖ·
for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);
} //¸üÐÂÏÔʾ
}
void OLED_On(void)
{
u8 i,n;
for(i=0;i<8;i++)
{
OLED_WR_Byte (0xb0+i,OLED_CMD); //ÉèÖÃÒ³µØÖ·£¨0~7£©
OLED_WR_Byte (0x00,OLED_CMD); //ÉèÖÃÏÔʾλÖáªÁе͵ØÖ·
OLED_WR_Byte (0x10,OLED_CMD); //ÉèÖÃÏÔʾλÖáªÁиߵØÖ·
for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA);
} //¸üÐÂÏÔʾ
}
//ÔÚÖ¸¶¨Î»ÖÃÏÔʾһ¸ö×Ö·û,°üÀ¨²¿·Ö×Ö·û
//x:0~127
//y:0~63
//mode:0,·´°×ÏÔʾ;1,Õý³£ÏÔʾ
//size:Ñ¡Ôñ×ÖÌå 16/12
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)
{
unsigned char c=0,i=0;
c=chr-' ';//µÃµ½Æ«ÒƺóµÄÖµ
if(x>Max_Column-1){x=0;y=y+2;}
if(Char_Size ==16)
{
OLED_Set_Pos(x,y);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
OLED_Set_Pos(x,y+1);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
}
else {
OLED_Set_Pos(x,y);
for(i=0;i<6;i++)
OLED_WR_Byte(F6x8[c][i],OLED_DATA);
}
}
//m^nº¯Êý
u32 oled_pow(u8 m,u8 n)
{
u32 result=1;
while(n--)result*=m;
return result;
}
//ÏÔʾ2¸öÊý×Ö
//x,y :Æðµã×ø±ê
//len :Êý×ÖµÄλÊý
//size:×ÖÌå´óС
//mode:ģʽ 0,Ìî³äģʽ;1,µþ¼Óģʽ
//num:ÊýÖµ(0~4294967295);
void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2)
{
u8 t,temp;
u8 enshow=0;
for(t=0;t120){x=0;y+=2;}
j++;
}
}
/***********¹¦ÄÜÃèÊö£ºÏÔʾÏÔʾBMPͼƬ128¡Á64Æðʼµã×ø±ê(x,y),xµÄ·¶Î§0¡«127£¬yΪҳµÄ·¶Î§0¡«7*****************/
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
{
unsigned int j=0;
unsigned char x,y;
if(y1%8==0) y=y1/8;
else y=y1/8+1;
for(y=y0;yMax_Column-1){x=0;y=y+2;}
//16 X 32,ÔÀ´ÊÇ24*48
OLED_Set_Pos(x,y);
for(i=0;i<16;i++)
OLED_WR_Byte(F18X16[c*64+i],OLED_DATA);
OLED_Set_Pos(x,y+1);
for(i=0;i<16;i++)
OLED_WR_Byte(F18X16[c*64+i+16],OLED_DATA);
OLED_Set_Pos(x,y+2);
for(i=0;i<16;i++)
OLED_WR_Byte(F18X16[c*64+i+32],OLED_DATA);
OLED_Set_Pos(x,y+3);
for(i=0;i<16;i++)
OLED_WR_Byte(F18X16[c*64+i+48],OLED_DATA);
OLED_Set_Pos(x,y+4);
}
//ÏÔʾһ¸ö×Ö·ûºÅ´®
void OLED_ShowStringh(u8 x,u8 y,u8 *chr,u8 Char_Size)
{
unsigned char j=0;
while (chr[j]!='\0')
{
if(chr[j]<='9'&&chr[j]>='0')
OLED_ShowCharh(x,y,chr[j]+1-'0');
else
OLED_ShowCharh(x,y,0);
x+=16;
if(x>120){x=0;y+=2;}
j++;
}
}
将电压值和和距离值传送到led屏幕上去
void ShowLED()
{
u8 text[25];
u16 baud;
sprintf(text,"Vat:");
OLED_ShowString(0,2,text,16);
sprintf(text,"%4d",Volt1);
OLED_ShowStringh(32,0,text,16);
sprintf(text,"Dtc:");
OLED_ShowString(0,5,text,16);
sprintf(text,"%4dcm",Distance);;
OLED_ShowStringh(32,4,text,16);
if(ModelBaud==2)
baud = 9600;
else if (ModelBaud==1)
baud = 4800;
else
baud = 2400;
sprintf(text,"ID:%03d B:%d",ModelID,baud);
//OLED_ShowString(0,6,text,16);
}
指定距离灯光语音报警，可用modbus设置两个不同距离档位LLoff1，LLoff20，外设声光报警器，通过控制继电器，来进行开关
if(biaozhiwei==1)//´ò¿ª±¨¾¯¹¦ÄÜ
{
if(LLoff1LLoff2)//´óÓÚ¶þµ²
{
GPIO_ResetBits(GPIOA,GPIO_Pin_9);
delay_ms(1000);
GPIO_SetBits(GPIOA,GPIO_Pin_9);
delay_ms(1000);
}
}
else
{
GPIO_SetBits(GPIOA,GPIO_Pin_9);
}
}
}