webDht11Thingspeak

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#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include "DHT.h"

// Uncomment one of the lines below for whatever DHT sensor type you're using!
#define DHTTYPE DHT11   // DHT 11
//#define DHTTYPE DHT21   // DHT 21 (AM2301)
//#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

/*Put your SSID & Password*/
const char* ssid = "wifi名字aaa";  // Enter SSID here
const char* password = "wifi密碼bbb";  //Enter Password here

ESP8266WebServer server(80);

// DHT Sensor
uint8_t DHTPin = D6; 
               
// Initialize DHT sensor.
DHT dht(DHTPin, DHTTYPE);                

float Temperature;
float Humidity;



 //thingspeak
 #define HOST    "api.thingspeak.com" // ThingSpeak IP Address: 184.106.153.149
#define PORT    80
const char* resource = "/update?api_key=";
String APIKEY  = "ccc"; //寫入需要的Write API Key

void setup() {
  Serial.begin(9600);
  delay(100);
  
  pinMode(DHTPin, INPUT);

  dht.begin();              

  Serial.println("Connecting to ");
  Serial.println(ssid);

  //connect to your local wi-fi network
  WiFi.begin(ssid, password);

  //check wi-fi is connected to wi-fi network
  while (WiFi.status() != WL_CONNECTED) {
  delay(1000);
  Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected..!");
  Serial.print("Got IP: ");  Serial.println(WiFi.localIP());

  server.on("/", handle_OnConnect);
  server.onNotFound(handle_NotFound);

  server.begin();
  Serial.println("HTTP server started");

}
void loop() {
  
  server.handleClient();
  updateDHT22();
}

void handle_OnConnect() {

 Temperature = dht.readTemperature(); // Gets the values of the temperature
  Humidity = dht.readHumidity(); // Gets the values of the humidity 
  server.send(200, "text/html", SendHTML(Temperature,Humidity)); 
}

void handle_NotFound(){
  server.send(404, "text/plain", "Not found");
}

String SendHTML(float Temperaturestat,float Humiditystat){
  String ptr = "<!DOCTYPE html> <html>\n";
  ptr +="<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, user-scalable=no\">\n";
  ptr +="<meta charset='utf-8'>\n";
  ptr +="<meta http-equiv = 'refresh' content = '1'>\n";
  ptr +="<title>ESP8266 Weather Report</title>\n";
  ptr +="<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}\n";
  ptr +="body{margin-top: 50px;} h1 {color: #444444;margin: 50px auto 30px;}\n";
  ptr +="p {font-size: 24px;color: #444444;margin-bottom: 10px;}\n";
  ptr +="</style>\n";
  ptr +="</head>\n";
  ptr +="<body>\n";
  ptr +="<div id=\"webpage\">\n";
  ptr +="<h1>ESP8266 NodeMCU Weather Report</h1>\n";
  
  ptr +="<p>Temperature: ";
  ptr +=Temperaturestat;
  ptr +="°C</p>";
  ptr +="<p>Humidity: ";
  ptr +=Humiditystat;
  ptr +="%</p>";
  
  ptr +="</div>\n";
  ptr +="</body>\n";
  ptr +="</html>\n";
  return ptr;
}


void updateDHT22()
{
    // 設定 ESP8266 作為 Client 端
    WiFiClient client;
    if( !client.connect( HOST, PORT ) )
    {
        Serial.println( "connection failed" );
        return;
    }
    else
    {
        // 準備上傳到 ThingSpeak IoT Server 的資料
        // 已經預先設定好 ThingSpeak IoT Channel 的欄位
        // field1：溫度；field2：濕度
      client.print(String("GET ") + resource + APIKEY + "&field1=" + dht.readTemperature() + "&field2=" + dht.readHumidity() +
                  " HTTP/1.1\r\n" +
                  "Host: " + HOST + "\r\n" + 
                  "Connection: close\r\n\r\n");
                  
      int timeout = 5 * 10; // 5 seconds             
      while(!!!client.available() && (timeout-- > 0)){
        delay(100);
      }
  
      if(!client.available()) {
        Serial.println("No response, going back to sleep");
      }
      while(client.available()){
        Serial.write(client.read());
      }
  
    Serial.println("\nclosing connection");
    client.stop();
   }
}