stm32f103zet6單片機BH1750光照傳感器程序 0.96OLED顯示

ID:1088465 · 發表于 2023-8-9 15:37

工程實現了在stm32f103zet6開發板上利用雙iic通信定時采集bh1750的光照信息（勒克斯），并將數據展示在0.96寸oled屏幕上，實現實時定量定性觀測環境光照強度大小。keil工程如下：
單片機源程序如下:

#include "sys.h"
#include "delay.h"
#include "bh1750.h"
#include "oled.h"
/*
BH1750
SCL PB10
SDA PB11
VCC 3.3V
GND GND
ADDR keyibujie.
0.96OLED IIC
SCL PG12
SDA PD5
VCC 3.3V
GND GND
*/
int main(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);//設置中斷優先級分組為組2：2位搶占優先級，2位響應優先級
delay_init(); //延時函數初始化
Light_Init();
bh_data_send(BHPowOn);
bh_data_send(BHReset);
bh_data_send(BHModeH1); //選擇的是分辨率是4lx，測量時間是16ms的
delay_ms(100);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
OLED_Clear();
OLED_Init();
OLED_ShowChinese(12,0,0,24,1);
OLED_ShowChinese(36,0,1,24,1);
OLED_ShowChinese(60,0,2,24,1);
OLED_ShowChinese(84,0,3,24,1);
while(1)
{
printf("%d \n",bh_data_read());
OLED_SHOW_BH1750(); //OLED動態顯示BH1750光照數值
OLED_Refresh();
delay_ms(100);
}
}

復制代碼

#include "delay.h"
#include "bh1750.h"
#include "oled.h"
typedef unsigned char BYTE;
//BYTE BUF[8]; //接收數據緩存區
//iic接口初始化
void Single_Write_BH1750(uchar REG_Address)
{
IIC_Start(); //起始信號
IIC_Send_Byte(BHAddWrite); //發送設備地址+寫信號
IIC_Send_Byte(REG_Address); //內部寄存器地址，
// BH1750_SendByte(REG_data); //內部寄存器數據，
IIC_Stop(); //發送停止信號
}
void Light_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); //使能A端口時鐘
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10|GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽輸出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//速度50MHz
GPIO_Init(GPIOB, &GPIO_InitStructure); //初始化GPIOB10,11
GPIO_SetBits(GPIOB,GPIO_Pin_10|GPIO_Pin_11);
Single_Write_BH1750(0x01);
}
/*************************************************************************************/
void bh_data_send(u8 command)
{
do{
IIC_Start(); //iic起始信號
IIC_Send_Byte(BHAddWrite); //發送器件地址
}while(IIC_Wait_Ack()); //等待從機應答
IIC_Send_Byte(command); //發送指令
IIC_Wait_Ack(); //等待從機應答
IIC_Stop(); //iic停止信號
}
u16 bh_data_read(void)
{
u16 buf;
IIC_Start(); //iic起始信號
IIC_Send_Byte(BHAddRead); //發送器件地址+讀標志位
IIC_Wait_Ack(); //等待從機應答
buf=IIC_Read_Byte(1); //讀取數據
buf=buf<<8; //讀取并保存高八位數據
buf+=0x00ff&IIC_Read_Byte(0); //讀取并保存第八位數據
IIC_Stop(); //發送停止信號
return buf;
}
void OLED_SHOW_BH1750(void)
{
OLED_ShowChar(40,26,'L',16,1);
OLED_ShowChar(48,26,'U',16,1);
OLED_ShowChar(58,26,'X',16,1);
if(bh_data_read() > 65200)
{
OLED_ShowChar(32,0,'E',16,0);
OLED_ShowChar(40,0,'R',16,0);
OLED_ShowChar(48,0,'R',16,0);
OLED_ShowChar(56,0,'O',16,0);
OLED_ShowChar(64,0,'R',16,0);
delay_ms(500);
OLED_Clear();
}
else if(bh_data_read() > 10000 && bh_data_read() < 65200)
{ OLED_ShowChinese(70,38,7,24,1);
OLED_ShowChinese(94,38,7,24,1);
OLED_ShowNum(0,26,bh_data_read() % 100000 / 10000,1,16,1);
OLED_ShowNum(8,26,bh_data_read() % 10000 / 1000 ,1,16,1);
OLED_ShowNum(16,26,bh_data_read() % 1000 / 100 ,1,16,1);
OLED_ShowNum(24,26,bh_data_read() % 100 / 10 ,1,16,1);
OLED_ShowNum(32,26,bh_data_read() % 10 ,1,16,1);
OLED_ShowChinese(70,38,4,24,1);
OLED_ShowChinese(94,38,2,24,1);
}
else if(bh_data_read() > 1000 && bh_data_read() < 10000)
{ OLED_ShowChinese(70,38,7,24,1);
OLED_ShowChinese(94,38,7,24,1);
OLED_ShowChar(0,26,' ',16,1);
OLED_ShowNum(8,26,bh_data_read() % 10000 / 1000 ,1,16,1);
OLED_ShowNum(16,26,bh_data_read() % 1000 / 100 ,1,16,1);
OLED_ShowNum(24,26,bh_data_read() % 100 / 10 ,1,16,1);
OLED_ShowNum(32,26,bh_data_read() % 10 ,1,16,1);
OLED_ShowChinese(70,38,2,24,1);
}
else if(bh_data_read() > 100 && bh_data_read() < 1000)
{ OLED_ShowChinese(70,38,7,24,1);
OLED_ShowChinese(94,38,7,24,1);
OLED_ShowChar(0,26,' ',16,1);
OLED_ShowChar(8,26,' ',16,1);
OLED_ShowNum(16,26,bh_data_read() % 1000 / 100 ,1,16,1);
OLED_ShowNum(24,26,bh_data_read() % 100 / 10 ,1,16,1);
OLED_ShowNum(32,26,bh_data_read() % 10 ,1,16,1);
OLED_ShowChinese(70,38,5,24,1);
OLED_ShowChinese(94,38,8,24,1);
}
else if(bh_data_read() > 10 && bh_data_read() < 100)
{ OLED_ShowChinese(70,38,7,24,1);
OLED_ShowChinese(94,38,7,24,1);
OLED_ShowChar(0,26,' ',16,1);
OLED_ShowChar(8,26,' ',16,1);
OLED_ShowChar(16,26,' ',16,1);
OLED_ShowNum(24,26,bh_data_read() % 100 / 10 ,1,16,1);
OLED_ShowNum(32,26,bh_data_read() % 10 ,1,16,1);
OLED_ShowChinese(70,38,6,24,1);
}
else if(bh_data_read() < 10)
{ OLED_ShowChinese(70,38,7,24,1);
OLED_ShowChinese(94,38,7,24,1);
OLED_ShowChar(0,26,' ',16,1);
OLED_ShowChar(8,26,' ',16,1);
OLED_ShowChar(16,26,' ',16,1);
OLED_ShowChar(24,26,' ',16,1);
OLED_ShowNum(32,26,bh_data_read() % 10 ,1,16,1);
OLED_ShowChinese(70,38,4,24,1);
OLED_ShowChinese(94,38,6,24,1);
}
// else break;
delay_ms(100);
}