PMS7003 PM2.5測試儀,帶SHT20溫濕度 STM32源碼

ID:86777 · 發表于 2017-7-20 14:01

由于網上的PM2.5測試儀質量不一，多數測試儀傳感器只能定性，而不能精確定量，而且價格還很貴，所以在家沒事做了個PM2.5測試儀，帶溫度顯示
配件：
1、空氣質量傳感器為攀騰第七代PMS7003傳感器
2、溫濕度傳感器為SHT20
3、單片機STM32F103C8T6
屏幕各界面顯示數據：空氣質量指數，PM2.5.PM0.3.PM0.5.PM1.0.PM2.5.PM10顆粒數，含量以及溫濕度

特別提示：代碼我只上傳了攀藤7003傳感器的官方測試代碼，希望各位電子愛好者勇于探索，功到才能自然成。

單片機源程序如下:

#include "global_includes.h"
#include <stdio.h>
#include <string.h>
#include "stm32f10x_rcc.h"
typedef struct
{
uint16_t Buffer_Len;
uint16_t PM1_0_CF;
uint16_t PM2_5_CF;
uint16_t PM10_CF;
uint16_t PM1_0;
uint16_t PM2_5;
uint16_t PM10;
uint16_t Count0_3nm;
uint16_t Count0_5nm;
uint16_t Count1_0nm;
uint16_t Count2_5nm;
uint16_t Count5_0nm;
uint16_t Count10nm;
}PM_Sensor_DataStruct;
typedef enum {RESET = 0, SET = !RESET} FlagStatus;
typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrorStatus;
PM_Sensor_DataStruct PM_Sensor_Data;
uint8_t PM_Sensor_RxBuffer[50];
uint16_t PM_Sensor_RxTimeOut = 0;
uint16_t PM_Sensor_RxCount = 0;
FlagStatus PM_Sensor_RxFinish = RESET;
void SysTick_Handler(void) // SYS timer interrupt function
{
//OS_TimeMS ++; // ++1us for os timer
//==========================================================================
if(PM_Sensor_RxTimeOut != 0x00) // timeout for PM data receive
{
PM_Sensor_RxTimeOut--;
}
else
{
if((PM_Sensor_RxCount)&&(PM_Sensor_RxBuffer[0] == 'B')&&(PM_Sensor_RxBuffer[1] == 'M'))
{
PM_Sensor_RxCount = 0;
PM_Sensor_RxFinish = SET;
USART_ITConfig(USART1,USART_IT_RXNE,DISABLE);
}
else
{
PM_Sensor_RxCount = 0;
}
}
}
void USART1_IRQHandler(void) // USART1 interrupt
{
static uint8_t USART1_ByteData = 0;
if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
USART1_ByteData = USART_ReceiveData(USART1);
if(PM_Sensor_RxFinish == RESET)
{
PM_Sensor_RxBuffer[PM_Sensor_RxCount++] = USART1_ByteData;
PM_Sensor_RxTimeOut = 20;
}
}
//============================================================================
if(USART_GetFlagStatus(USART1, USART_FLAG_ORE) != RESET)
{
USART1_ByteData = USART_ReceiveData(USART1);
USART_ClearFlag(USART1, USART_FLAG_ORE);
}
if(USART_GetFlagStatus(USART1, USART_FLAG_NE) != RESET)
{
USART_ClearFlag(USART1, USART_FLAG_NE);
}
if(USART_GetFlagStatus(USART1, USART_FLAG_FE) != RESET)
{
USART_ClearFlag(USART1, USART_FLAG_FE);
}
if(USART_GetFlagStatus(USART1, USART_FLAG_PE) != RESET)
{
USART_ClearFlag(USART1, USART_FLAG_PE);
}
}
//=============================================================================
//PM_USART1_Configuartion USART1 configuration
//=============================================================================
void PM_USART1_Configuartion(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA |
RCC_APB2Periph_GPIOC, ENABLE);
RCC_APB2PeriphClockCmd( RCC_APB2Periph_USART1, ENABLE);
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* PA9 USART1_Tx */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //推挽輸出-TX
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* PA10 USART1_Rx */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //浮空輸入-RX
GPIO_Init(GPIOA, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 9600; //波特率
USART_InitStructure.USART_WordLength = USART_WordLength_8b; //設置數據長度為8bit
USART_InitStructure.USART_StopBits = USART_StopBits_1; //停止位為1
USART_InitStructure.USART_Parity = USART_Parity_No; //無校驗位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//數據流控制為none
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //接收和發送模式都打開
USART_Init(USART1, &USART_InitStructure); //初始化串口1
USART_ITConfig(USART1,USART_IT_RXNE,ENABLE); // 接收接收中斷
USART_ITConfig(USART1, USART_IT_ERR | USART_IT_PE, ENABLE);
/* Enable the USART1 */
USART_Cmd(USART1, ENABLE); //使能USART1
}
//=============================================================================
//Check_PMSensor_DataValid //
//=============================================================================
ErrorStatus Check_PMSensor_DataValid(void)
{
uint16_t Cal_CheckSum;
uint16_t Buffer_CheckSum;
uint16_t Buffer_Len;
uint8_t i;
ErrorStatus Result = ERROR;
if((PM_Sensor_RxBuffer[0] == 'B')&&(PM_Sensor_RxBuffer[1] == 'M'))
{
Buffer_Len = (uint16_t)((PM_Sensor_RxBuffer[2] << 8) | PM_Sensor_RxBuffer[3]);
Buffer_CheckSum = (uint16_t)((PM_Sensor_RxBuffer[Buffer_Len + 2] << 8) | PM_Sensor_RxBuffer[Buffer_Len + 3]);
Cal_CheckSum = 0;
for(i=0;i<(Buffer_Len + 2);i++)
{
Cal_CheckSum += PM_Sensor_RxBuffer[i];
}
if(Cal_CheckSum == Buffer_CheckSum)
Result = SUCCESS;
}
return Result;
}
//=============================================================================
//PMSensor_DataReflash //
//=============================================================================
void PMSensor_DataReflash(void)
{
uint16_t Buffer_Len;
memset(&PM_Sensor_Data,0,(sizeof(PM_Sensor_Data) - 2)); //PM_Sensor_Data.PM2_5_Old should not set to zero
Buffer_Len = (uint16_t)((PM_Sensor_RxBuffer[2] << 8) | PM_Sensor_RxBuffer[3]);
if(Buffer_Len == 28) //PMS1003/5003
{
PM_Sensor_Data.Buffer_Len = 28;
PM_Sensor_Data.PM1_0_CF = (uint16_t)((PM_Sensor_RxBuffer[4]<<8) | PM_Sensor_RxBuffer[5]);
PM_Sensor_Data.PM2_5_CF = (uint16_t)((PM_Sensor_RxBuffer[6]<<8) | PM_Sensor_RxBuffer[7]);
PM_Sensor_Data.PM10_CF = (uint16_t)((PM_Sensor_RxBuffer[8]<<8) | PM_Sensor_RxBuffer[9]);
PM_Sensor_Data.PM1_0 = (uint16_t)((PM_Sensor_RxBuffer[10]<<8) | PM_Sensor_RxBuffer[11]);
PM_Sensor_Data.PM2_5 = (uint16_t)((PM_Sensor_RxBuffer[12]<<8) | PM_Sensor_RxBuffer[13]);
PM_Sensor_Data.PM10 = (uint16_t)((PM_Sensor_RxBuffer[14]<<8) | PM_Sensor_RxBuffer[15]);
PM_Sensor_Data.Count0_3nm = (uint16_t)((PM_Sensor_RxBuffer[16]<<8) | PM_Sensor_RxBuffer[17]);
PM_Sensor_Data.Count0_5nm = (uint16_t)((PM_Sensor_RxBuffer[18]<<8) | PM_Sensor_RxBuffer[19]);
PM_Sensor_Data.Count1_0nm = (uint16_t)((PM_Sensor_RxBuffer[20]<<8) | PM_Sensor_RxBuffer[21]);
PM_Sensor_Data.Count2_5nm = (uint16_t)((PM_Sensor_RxBuffer[22]<<8) | PM_Sensor_RxBuffer[23]);
PM_Sensor_Data.Count5_0nm = (uint16_t)((PM_Sensor_RxBuffer[24]<<8) | PM_Sensor_RxBuffer[25]);
PM_Sensor_Data.Count10nm = (uint16_t)((PM_Sensor_RxBuffer[26]<<8) | PM_Sensor_RxBuffer[27]);
}
else if(Buffer_Len == 20)// PMS3003
{
PM_Sensor_Data.Buffer_Len = 20;
PM_Sensor_Data.PM1_0_CF = (uint16_t)((PM_Sensor_RxBuffer[4]<<8) | PM_Sensor_RxBuffer[5]);
PM_Sensor_Data.PM2_5_CF = (uint16_t)((PM_Sensor_RxBuffer[6]<<8) | PM_Sensor_RxBuffer[7]);
PM_Sensor_Data.PM10_CF = (uint16_t)((PM_Sensor_RxBuffer[8]<<8) | PM_Sensor_RxBuffer[9]);
PM_Sensor_Data.PM1_0 = (uint16_t)((PM_Sensor_RxBuffer[10]<<8) | PM_Sensor_RxBuffer[11]);
PM_Sensor_Data.PM2_5 = (uint16_t)((PM_Sensor_RxBuffer[12]<<8) | PM_Sensor_RxBuffer[13]);
PM_Sensor_Data.PM10 = (uint16_t)((PM_Sensor_RxBuffer[14]<<8) | PM_Sensor_RxBuffer[15]);
PM_Sensor_Data.Count0_3nm = 0;
PM_Sensor_Data.Count0_5nm = 0;
PM_Sensor_Data.Count1_0nm = 0;
PM_Sensor_Data.Count2_5nm = 0;
PM_Sensor_Data.Count5_0nm = 0;
PM_Sensor_Data.Count10nm = 0;
}
}
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f10x_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f10x.c file
*/
SetSysClockInternal(); // sysclock for internal RC
/**/
SysTick_Init();
/**/
NVIC_Configuration();
/**/
PM_USART1_Configuartion();
/**/
……………………
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PMS7003測試代碼.rar (2.24 KB, 下載次數: 316)

ID:228577 · 發表于 2017-8-21 10:33

想看看

ID:238505 · 發表于 2017-10-11 16:43

很好的參考

ID:198608 · 發表于 2017-10-11 23:52

樓主，能向你學習嗎

ID:242109 · 發表于 2017-10-23 15:03

學習了

ID:70546 · 發表于 2017-11-21 21:59

謝謝樓主分享

ID:15207 · 發表于 2017-12-26 16:47

這個傳感器是上電后每隔一段時間定時主動發送一條串口數據給單片機嗎？

ID:267330 · 發表于 2017-12-26 20:00

我正要找SHT20程序啊

ID:270197 · 發表于 2018-1-2 14:59

看看，謝謝

ID:273651 · 發表于 2018-1-9 11:02

謝謝樓主的分享

ID:288544 · 發表于 2018-3-7 09:55

感謝分享

ID:289262 · 發表于 2018-3-29 09:46

好東西，下載學習下。謝謝

ID:334781 · 發表于 2018-5-21 16:35

SHT20 這款傳感器不錯，有51的程序更好了

ID:366196 · 發表于 2018-7-6 14:29

資料能發一份到我郵箱嗎？？gavin1111@126.com
謝謝

ID:366196 · 發表于 2018-7-6 14:37

memset(&PM_Sensor_Data,0,(sizeof(PM_Sensor_Data) - 2));請問這句是什么意思？memset是什么

ID:560737 · 發表于 2019-6-12 11:25

看看大佬的

ID:526058 · 發表于 2019-11-9 23:52

這代碼質量還可以，就是沒貼完整。

ID:646328 · 發表于 2019-11-21 10:23

學習一下，觀摩

ID:818839 · 發表于 2020-9-14 14:01

您的這個PMS7003的機器能給我一些嗎？我不要7003模塊，只要外殼和板子

ID:825701 · 發表于 2020-12-24 21:13

沒想到，這里居然有我想要的

ID:1120670 · 發表于 2024-5-16 16:08

問一下大佬，global_includes.h是什么文件，里面都聲明了哪些啊？

ID:1144566 · 發表于 2025-2-28 10:00

請問有實物和單片機的連接圖嗎，我用的轉接板，轉成四根插針，用杜邦線連接到單片機的，連上電后傳感器沒有反應

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PMS7003 PM2.5測試儀,帶SHT20溫濕度 STM32源碼

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