單元11_ESP8266_機房溫度通知_DHT11_NTP_Google表單_LINE_ThingSpeak_溫度過高警示

 程式碼：

https://gist.github.com/clive520/d8c47a06dca2195b2b832bc1fc687c0c

利用ESP8266及一個DHT11製作一個機房溫度通知器

每一個小時會將資料傳送到LINE，Google，ThingSpeak

溫度超過40度，每5分鐘以LINE通知

#include <ESP8266WiFi.h>  //WIFI
#include <WiFiUdp.h>
#include "esp_NTPClient.h"  //NTP
#include <WiFiClientSecure.h>
#include "esp_DHTesp.h"  //DHT 11

float  Temp = 0;  //溫度
float  HUM = 0;   //濕度
String  T_Time;  //NTP取出時間
String  T_Time_STR;  //NTP取出時間，換成int的中繼站
int  H01 = 0;
int  H10 = 0;
int  HH = 0;
int  M01 = 0;
int  M10 = 0;
int  MM = 0;
//start_num，控制開始傳送，避免同一分鐘內送多次
int  start_num = 0;

int  LINE_num = 10;  //每小時的XX幾分鐘，上傳資料到LINE
int  Google_num = 20;  //每小時的XX幾分鐘，上傳資料到Google
int  ThingSpeak_num = 30;  //每小時的XX幾分鐘，上傳資料到ThingSpeak
//盡量不要新同時間上傳，每小時傳送一次，一天12次

int  LINE_warning_NUM = 0;



//NTP
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP);

DHTesp dht;  //DHT 11

//WIFI
WiFiClient client;
WiFiClientSecure Secure_client;




void setup()
{
  pinMode(2, OUTPUT);
  pinMode(4, INPUT);
  Serial.begin(9600);
  WIFI_connection(); //副程式 WIFI_connection

  //NTP
  timeClient.begin();
  timeClient.setTimeOffset(28800); //台灣時區+8，所以放入28800

  dht.setup(4);//DHT 11 接在腳位4
}


void loop()
{
    delay(30000);
    get_time(); //副程式 取得時間並轉成int
    get_data(); //副程式 取得DHT11資料
    
    if (start_num == 0) {    //start_num == 0 啟動，再判斷時間是否正確
      if (MM == LINE_num ) { LINE(); start_num = 1; Serial.println(start_num);  }   //上傳資料到LINE
      if (MM == ThingSpeak_num ) { ThingSpeak(); start_num = 1; Serial.println(start_num); }   //上傳資料到ThingSpeak
      if (MM == Google_num ) { Google();  start_num = 1;  Serial.println(start_num); }  //上傳資料到Google表單
      } 
    else if (MM != LINE_num && MM != Google_num && MM != ThingSpeak_num ) { 
      start_num = 0;   Serial.println(start_num);  }

    //若溫度高於40度，每五分鐘以LINE警告一次
    if(Temp >= 40 && LINE_warning_NUM == 0){ LINE_warning(); LINE_warning_NUM = LINE_warning_NUM + 1 ; }
    else if (LINE_warning_NUM > 0 && LINE_warning_NUM < 10 ){LINE_warning_NUM = LINE_warning_NUM + 1 ;}
    else {LINE_warning_NUM = 0;}

}



//WIFI_connection
void WIFI_connection() {
  WiFi.begin("book","12345678");
  while(WiFi.status() != WL_CONNECTED) {
   delay(500);
   Serial.print(".");
  }
  Serial.println(WiFi.localIP());
  for (int count = 0; count < 5; count++) {
    digitalWrite(2,HIGH);
    delay(500);
    digitalWrite(2,LOW);
    delay(500);
  }
}


//取得時間並轉成int
void get_time() {
  timeClient.update();
  T_Time = timeClient.getFormattedTime();
  Serial.println(T_Time);
  T_Time_STR = T_Time.charAt(0);
  H10 = T_Time_STR.toInt();
  T_Time_STR = T_Time.charAt(1);
  H01 = T_Time_STR.toInt();
  HH = H10 * 10 + H01;
  T_Time_STR = T_Time.charAt(3);
  M10 = T_Time_STR.toInt();
  T_Time_STR = T_Time.charAt(4);
  M01 = T_Time_STR.toInt();
  MM = M10 * 10 + M01;
  //Serial.println((String("1=") + String(H10) + String("2=") + String(H01) + String("HH=") + String(HH)));
  Serial.println((String("4=") + String(M10) + String("5=") + String(M01) + String("MM=") + String(MM)));
}

//取得DHT11資料
void get_data() {
  Temp = dht.getTemperature();
  HUM = dht.getHumidity();
    if (isnan(Temp) || isnan(HUM) ) {  //判斷是否有讀到數值
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  //Serial.println(Temp);
  //Serial.println(HUM);
}

//上傳資料到ThingSpeak
void ThingSpeak() {
  if(client.connect("api.thingspeak.com", 80)) {
     String  things_request = "GET /update?api_key=SPL5BSYPN18QOMQ8&field1="+ String(Temp)+"&field2="+ String(HUM)+"\r\n\r\n";
       client.print(things_request);
       client.stop();
  }
  Serial.println("ThingSpeak");
}

//上傳資料到Google表單
void Google() {
  if (Secure_client.connect("docs.google.com", 443)) {
       Secure_client.println("GET /forms/d/e/1FAIpQLSeKbv3Yo2r8WTlpk4y6RGOGYbQ3dQNvTScaESSaWREITVXw6g/formResponse?entry.1273328924="+ String(Temp)+"&entry.1741593155="+ String(HUM)+"&submit=Submit HTTP/1.1");
       Secure_client.println("Host: docs.google.com");
       Secure_client.println("Connection: close");
       Secure_client.println();
       Secure_client.stop();
  }
  Serial.println("Google");
}

//上傳資料到LINE
void LINE() {
  if (Secure_client.connect("notify-api.line.me",443)) {
       String data = "message="+String((String("\n四樓機房溫度：") + String(Temp) + String("\n四樓機房濕度：") + String(HUM)));
       Secure_client.println("POST /api/notify HTTP/1.1");
       Secure_client.println("Host: notify-api.line.me");
       Secure_client.println("Authorization: Bearer DhryVqqdnWsStwHzraLj1NV90NMK96IgQWniF3omKub");
       Secure_client.println("Content-Type: application/x-www-form-urlencoded");
       Secure_client.print("Content-Length: ");
       Secure_client.println(data.length());
       Secure_client.println();
       Secure_client.println(data);
       Secure_client.stop();
  }
  Serial.println("LINE");
}

//溫度過高時，及時上傳資料到LINE
void LINE_warning() {
  if (Secure_client.connect("notify-api.line.me",443)) {
       String data = "message="+String((String("\n四樓機房溫度過高！！\n請特別注意！！\n四樓機房溫度：") + String(Temp) + String("\n四樓機房濕度：") + String(HUM)));
       Secure_client.println("POST /api/notify HTTP/1.1");
       Secure_client.println("Host: notify-api.line.me");
       Secure_client.println("Authorization: Bearer DhryVqqdnWsStwHzraLj1NV90NMK96IgQWniF3omKub");
       Secure_client.println("Content-Type: application/x-www-form-urlencoded");
       Secure_client.print("Content-Length: ");
       Secure_client.println(data.length());
       Secure_client.println();
       Secure_client.println(data);
       Secure_client.stop();
  }
  Serial.println("LINE_warning");
}