01-G5+Uno

(2017/12/30)

俊青老師在好久前給我一個貴森森的PMS5003ST攀藤測PM2.5的感測器(也就是本篇文章的主角G5；這個感測器可以偵測PM2.5、甲醛及溫濕度的值)，以前用G3接過Uno及NodeMCU控制板，今天再拿G5來重做一次試看看。

攀藤PMS5003ST-說明如附件

<以前寫過的文章>

參考資料一:PMS5003ST arduino範例程式、https://sites.google.com/site/csjhmaker/e0/pan-tengpms5003

這個程式最簡單
這網站提供了arduino的程式，如下：
- - - static unsigned int pm_cf_10; //定义全局变量
    - static unsigned int pm_cf_25;
    - static unsigned int pm_cf_100;
    - static unsigned int pm_at_10;
    - static unsigned int pm_at_25;
    - static unsigned int pm_at_100;
    - static unsigned int particulate03;
    - static unsigned int particulate05;
    - static unsigned int particulate10;
    - static unsigned int particulate25;
    - static unsigned int particulate50;
    - static unsigned int particulate100;
    - static float HCHO;
    - static float Temperature;
    - static float Humidity;
    - void getG5(unsigned char ucData)//获取G5的值
    - {
    - static unsigned int ucRxBuffer[250];
    - static unsigned int ucRxCnt = 0;
    - ucRxBuffer[ucRxCnt++] = ucData;
    - if (ucRxBuffer[0] != 0x42 && ucRxBuffer[1] != 0x4D)//数据头判断
    - {
    - ucRxCnt = 0;
    - return;
    - }
    - if (ucRxCnt > 38)//数据位判断//G5S为32，G5ST为38
    - {
    - pm_cf_10=(int)ucRxBuffer[4] * 256 + (int)ucRxBuffer[5]; //大气环境下PM2.5浓度计算
    - pm_cf_25=(int)ucRxBuffer[6] * 256 + (int)ucRxBuffer[7];
    - pm_cf_100=(int)ucRxBuffer[8] * 256 + (int)ucRxBuffer[9];
    - pm_at_10=(int)ucRxBuffer[10] * 256 + (int)ucRxBuffer[11];
    - pm_at_25=(int)ucRxBuffer[12] * 256 + (int)ucRxBuffer[13];
    - pm_at_100=(int)ucRxBuffer[14] * 256 + (int)ucRxBuffer[15];
    - particulate03=(int)ucRxBuffer[16] * 256 + (int)ucRxBuffer[17];
    - particulate05=(int)ucRxBuffer[18] * 256 + (int)ucRxBuffer[19];
    - particulate10=(int)ucRxBuffer[20] * 256 + (int)ucRxBuffer[21];
    - particulate25=(int)ucRxBuffer[22] * 256 + (int)ucRxBuffer[23];
    - particulate50=(int)ucRxBuffer[24] * 256 + (int)ucRxBuffer[25];
    - particulate100=(int)ucRxBuffer[26] * 256 + (int)ucRxBuffer[27];
    - HCHO=((int)ucRxBuffer[28] * 256 +(int)ucRxBuffer[29])/1000.000;
    - Temperature = ((int)ucRxBuffer[30] * 256 +(int)ucRxBuffer[31])/10.000;//包含温度
    - Humidity = ((int)ucRxBuffer[32] * 256 +(int)ucRxBuffer[33])/10.000;//包含湿度
    - if (pm_cf_25 > 999)//如果PM2.5数值>1000，返回重新计算
    - {
    - ucRxCnt = 0;
    - return;
    - }
    - ucRxCnt = 0;
    - return;
    - }
    - }
    - void setup() {
    - Serial.begin(9600);
    - }
    - void loop() {
    - while (Serial.available())
    - {
    - getG5(Serial.read());
    - }
    - Serial.print(" PM_CF1.0:");Serial.print(pm_cf_10);Serial.print(" ug/m3");//硬件串口输出数据
    - Serial.print(" PM_CF2.5:");Serial.print(pm_cf_25);Serial.print(" ug/m3");
    - Serial.print(" PM_CF10 :");Serial.print(pm_cf_100);Serial.println(" ug/m3");
    - Serial.print(" PM_AQI1.0:");Serial.print(pm_at_10);Serial.print(" ug/m3");
    - Serial.print(" PM_AQI2.5:");Serial.print(pm_at_25);Serial.print(" ug/m3");
    - Serial.print(" PM_AQI10:");Serial.print(pm_at_100);Serial.println(" ug/m3");
    - Serial.print(" PM_count03:");Serial.print(particulate03);Serial.print(" pcs/0.01cf");
    - Serial.print(" PM_count05:");Serial.print(particulate05);Serial.print(" pcs/0.01cf");
    - Serial.print(" PM_count10:");Serial.print(particulate10);Serial.print(" pcs/0.01cf");
    - Serial.print(" PM_count25:");Serial.print(particulate25);Serial.print(" pcs/0.01cf");
    - Serial.print(" PM_count100:");Serial.print(particulate100);Serial.println(" pcs/0.01cf");
    - Serial.print(" HCHO:");Serial.print(HCHO,3);Serial.println(" mg/m3");
    - Serial.print(" TS:");Serial.print(Temperature,1);Serial.println(" C"); //包含温度
    - Serial.print(" HS:");Serial.print(Humidity,1);Serial.println(" %RH"); //包含湿度
    - Serial.println("*********************************************");
    - delay(2000);
    - }
接線：(程式先燒錄好，再接上線)，其實VCC要接5V的，TX RX都要TTL电平的（3.3V），但我沒有理會它，暫時不會，所以等以後再處理

結果：

參考資料二:https://github.com/keepworking/MECHA_PMS5003ST

將上面檔案下載，並將資料夾放到arduino/libraries下
開啟範例檔的ReadData
將G5的pin5(TXD)接到Arduino的D2
呈現結果

參考資料三:http://www.cnblogs.com/nightnine/p/6572891.html

程式：

參考資料四：打造属于自己的空气检测器（实现本地、home-assistant和homekit中显示）

參考資料五：DIY空气检测仪——攀藤G5ST+OpenWrt（附代码）

====================================================================

加上 LCD 顯示器

利用以上程式可以得到PM1.0、PM2.5、PM10分別在CF=1為標準顆粒物、atmosphere為大氣環境下

- CF=1 根据美国TSI公司的仪器校准
- 大气环境下根据中国气象局的数据校准

從下面這資料，好像用大氣環境下的為主

首先，它可以採樣測定的空氣懸浮微粒有三種規格 0.3-1.0um/1.0-2.5um/2.5-10um，也就是說我們可以拿到 PM1.0/PM2.5/PM10 的測定資料(ug/m3)。而且PMS3003 的 datasheet 寫到他有兩套檢定空氣品質濃度的方法，分別是可以獲得「大氣環境下」和「標準顆粒物」兩組資料值，所以程式裡面每一次從 sensor 那邊得到的資料就會有２組，６個測定值。這裡我會在意的是「大氣環境下」測得的這組，所以，以下顯示的是大氣環境下這組的數據。

接線：

註:有關LCD顯示器的程式，採用Motoblockly的積木來產生(紅色字為增加的地方)

利用參考資料一的程式，再加上LCD的程式

#include <Wire.h>
#include <motoLiquidCrystal_I2C.h>
LiquidCrystal_I2C mylcd(0x3F,16,2); //注意是0x27或0x3F
- static unsigned int pm_cf_10; //定义全局变量
- static unsigned int pm_cf_25;
- static unsigned int pm_cf_100;
- static unsigned int pm_at_10;
- static unsigned int pm_at_25;
- static unsigned int pm_at_100;
- static unsigned int particulate03;
- static unsigned int particulate05;
- static unsigned int particulate10;
- static unsigned int particulate25;
- static unsigned int particulate50;
- static unsigned int particulate100;
- static float HCHO;
- static float Temperature;
- static float Humidity;
- void getG5(unsigned char ucData)//获取G5的值
- {
- static unsigned int ucRxBuffer[250];
- static unsigned int ucRxCnt = 0;
- ucRxBuffer[ucRxCnt++] = ucData;
- if (ucRxBuffer[0] != 0x42 && ucRxBuffer[1] != 0x4D)//数据头判断
- {
- ucRxCnt = 0;
- return;
- }
- if (ucRxCnt > 38)//数据位判断//G5S为32，G5ST为38
- {
- pm_cf_10=(int)ucRxBuffer[4] * 256 + (int)ucRxBuffer[5]; //大气环境下PM2.5浓度计算
- pm_cf_25=(int)ucRxBuffer[6] * 256 + (int)ucRxBuffer[7];
- pm_cf_100=(int)ucRxBuffer[8] * 256 + (int)ucRxBuffer[9];
- pm_at_10=(int)ucRxBuffer[10] * 256 + (int)ucRxBuffer[11];
- pm_at_25=(int)ucRxBuffer[12] * 256 + (int)ucRxBuffer[13];
- pm_at_100=(int)ucRxBuffer[14] * 256 + (int)ucRxBuffer[15];
- particulate03=(int)ucRxBuffer[16] * 256 + (int)ucRxBuffer[17];
- particulate05=(int)ucRxBuffer[18] * 256 + (int)ucRxBuffer[19];
- particulate10=(int)ucRxBuffer[20] * 256 + (int)ucRxBuffer[21];
- particulate25=(int)ucRxBuffer[22] * 256 + (int)ucRxBuffer[23];
- particulate50=(int)ucRxBuffer[24] * 256 + (int)ucRxBuffer[25];
- particulate100=(int)ucRxBuffer[26] * 256 + (int)ucRxBuffer[27];
- HCHO=((int)ucRxBuffer[28] * 256 +(int)ucRxBuffer[29])/1000.000;
- Temperature = ((int)ucRxBuffer[30] * 256 +(int)ucRxBuffer[31])/10.000;//包含温度
- Humidity = ((int)ucRxBuffer[32] * 256 +(int)ucRxBuffer[33])/10.000;//包含湿度
- if (pm_cf_25 > 999)//如果PM2.5数值>1000，返回重新计算
- {
- ucRxCnt = 0;
- return;
- }
- ucRxCnt = 0;
- return;
- }
- }
- void setup() {
- Serial.begin(9600);
- mylcd.init();
mylcd.backlight();
- }
- void loop() {
- while (Serial.available())
- {
- getG5(Serial.read());
- }
- Serial.print(" PM_CF1.0:");Serial.print(pm_cf_10);Serial.print(" ug/m3");//硬件串口输出数据
- Serial.print(" PM_CF2.5:");Serial.print(pm_cf_25);Serial.print(" ug/m3");
- Serial.print(" PM_CF10 :");Serial.print(pm_cf_100);Serial.println(" ug/m3");
- Serial.print(" PM_AQI1.0:");Serial.print(pm_at_10);Serial.print(" ug/m3");
- Serial.print(" PM_AQI2.5:");Serial.print(pm_at_25);Serial.print(" ug/m3");
- Serial.print(" PM_AQI10:");Serial.print(pm_at_100);Serial.println(" ug/m3");
- Serial.print(" PM_count03:");Serial.print(particulate03);Serial.print(" pcs/0.01cf");
- Serial.print(" PM_count05:");Serial.print(particulate05);Serial.print(" pcs/0.01cf");
- Serial.print(" PM_count10:");Serial.print(particulate10);Serial.print(" pcs/0.01cf");
- Serial.print(" PM_count25:");Serial.print(particulate25);Serial.print(" pcs/0.01cf");
- Serial.print(" PM_count100:");Serial.print(particulate100);Serial.println(" pcs/0.01cf");
- Serial.print(" HCHO:");Serial.print(HCHO,3);Serial.println(" mg/m3");
- Serial.print(" TS:");Serial.print(Temperature,1);Serial.println(" C"); //包含温度
- Serial.print(" HS:");Serial.print(Humidity,1);Serial.println(" %RH"); //包含湿度
- Serial.println("*********************************************");
- mylcd.setCursor(0,0);
mylcd.print(String("At ")+pm_at_10 + String(",")+pm_at_25 + String(",")+pm_at_100 );
mylcd.setCursor(0,1);
mylcd.print(String("F:")+HCHO + String(" T:")+Temperature + String(" H:")+Humidity );
- delay(2000);
- }