Arduino-wifi-

Home heating system connecting Arduino Wi-Fi shield
My aim is to offer a simple, cheap, and effective way home heating automation system works

For more details: Please see this link: www.networkingstudio.org

/* WiFi Web Server

A simple web server that shows the value of the digital input pins. using a DHT11 sensor, WiFi shield and Arduino Uno.

This example is written for a network using WPA encryption. For WEP or WPA, change the Wifi.begin() call accordingly.

Circuit:

• WiFi shield attached
• Digital inputs attached to pins 2 Webpage: Home heating support system

Modifyed: 24 April, 2017 by D. (Dan: Networking Studio) https://github.com/NetworkingStudio/Arduino-wifi-

*/

#include <SPI.h> #include <WiFi.h> #include <DHT.h>

char ssid[] = "xxxxxxxxxx"; // your network SSID (name) char pass[] = "xxxxxxxxxx"; // your network password int keyIndex = 0; // your network key Index number (needed only for WEP)

#define DHTPIN 2 // what digital pin we're connected to

// Uncomment whatever type you're using! #define DHTTYPE DHT11 // DHT 11

DHT dht(DHTPIN, DHTTYPE);

int status = WL_IDLE_STATUS;

WiFiServer server(80);

int sensorValue; //New float degree; //New

void setup() { //Initialize serial and wait for port to open: Serial.begin(9600); dht.begin(); while (!Serial) { ; // wait for serial port to connect. Needed for native USB port only }

// check for the presence of the shield: if (WiFi.status() == WL_NO_SHIELD) { Serial.println("WiFi shield not present"); // don't continue: while (true); }

String fv = WiFi.firmwareVersion(); if (fv != "1.1.0") { Serial.println("Please upgrade the firmware"); }

// attempt to connect to Wifi network: while (status != WL_CONNECTED) { Serial.print("Attempting to connect to SSID: "); Serial.println(ssid); // Connect to WPA/WPA2 network. Change this line if using open or WEP network: status = WiFi.begin(ssid, pass);

// wait 10 seconds for connection:
delay(10000);

} server.begin(); // you're connected now, so print out the status: printWifiStatus(); }

void loop() { // listen for incoming clients WiFiClient client = server.available(); if (client) { Serial.println("new client"); // an http request ends with a blank line boolean currentLineIsBlank = true; while (client.connected()) { if (client.available()) { char c = client.read(); Serial.write(c); // if you've gotten to the end of the line (received a newline // character) and the line is blank, the http request has ended, // so you can send a reply if (c == '\n' && currentLineIsBlank) { // send a standard http response header client.println("HTTP/1.1 200 OK"); client.println("Content-Type: text/html"); client.println(); // the connection will be closed after completion of the response client.println(); // refresh the page automatically every 5 sec client.println(); client.println("<font Refresh: 5"); client.print("Network Studio 2017"); client.print(""); client.println("Home-Heating-Support"); client.print(""); client.print("");

      // the content of the HTTP response follows header:
        client.print("<form action='/Temp-ON' method='GET'>");
        client.print("<button type='submit'>Temp-ON</button>");
        client.print("</form>");
        client.print("<form action='/Temp-Off' method='GET'>");
        client.print("<button type='submit'>Temp-Off</button>");
        client.print("</form>");

        //To press button header for Home Heatting Support
        client.print("<font color='blue'>Themostart Controller</font>");
         client.print("</form>");
        client.print("Press AUTO for Home Heatting Support Automatically ");
        client.print("<form action='/AUTO' method='GET'>");
        client.print("<button type='submit'>AUTO</button>");
        client.print("</form>"); //websit           client.print("</form>"); //

        client.print("Room temperature is ! ");
        
        float hi = dht.readHumidity();
        float t = dht.readTemperature();
        float f = dht.readTemperature(true);
      
      //  if (isnan(h) || isnan(t) || isnan(f)) 
        {
        //  Serial.println("Failed to read from DHT sensor!");
     //     return;
        }
        float hif = dht.computeHeatIndex(f, hi);
        float hic = dht.computeHeatIndex(t, hi, false);
        
        client.print("Humidity: ");
         client.print(hi);
       client.print(" %\t");
        client.print("Temperature: ");
        client.print(t);
        client.print(" *C ");
         client.print(f);
         client.print(" *F\t");
        // client.print("Heat index: ");
        client.print(hic);
         client.print(" *C ");
         client.print(hif);
       client.println(" *Input Values");
        
        client.print("Network Studio 2017");

        
        // HTML Document type
      client.println();

// client.println(""); // client.println(""); // output the value of each analog input pin for (int digitalChannel = 2; digitalChannel < 6; digitalChannel++) { int sensorReading = digitalRead(digitalChannel); //New lines to caclulate sensorValue = digitalRead(2); //To get Digital reading degree=sensorValue*(0.5/1023.0)/0.0009; //New t = ((t-85)/10) * ((87-t)/5); //temperature is between 80 and 87 degrees F, hi = 0.5 * (t + 61.0 + ((t-68.0)1.2) + (hi0.094)); //temperature and humidity warrant a heat index value //about 80 degrees F. In those cases, a simpler formula is applied to calculate values consistently.
client.print(degree); //New

        Serial.print("TempReader input ");
       Serial.print(digitalChannel);
        Serial.print(" is ");
       Serial.print(sensorReading);
        client.println("<c />");
        //client.println("<meta http-equiv=refresh content=1;URL='//192.xxx.xxx.xxx/AUTO'"); // Refresh main website
                    
      }
      //HTTP response ends with a blank line
      client.println();
      //break from while loop lines
      break;
    }
    if (c == '\n') {
      // you're starting a new line
      currentLineIsBlank = true;
    } else if (c != '\r') {
      // you've gotten a character on the current line
      currentLineIsBlank = false;
    }
  }
}
// give the web browser time to receive the data
delay(1);

// close the connection:
client.stop();
Serial.println("client disonnected");

} }

void dhtSensor(){ // Wait a few seconds between measurements. delay(2000);

// Reading temperature or humidity takes about 250 milliseconds! // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor) float h = dht.readHumidity(); // Read temperature as Celsius (the default) float t = dht.readTemperature(); // Read temperature as Fahrenheit (isFahrenheit = true) float f = dht.readTemperature(true);

// Check if any reads failed and exit early (to try again). if (isnan(h) || isnan(t) || isnan(f)) { Serial.println("Failed to read from DHT sensor!"); return; }

// Compute heat index in Fahrenheit (the default) float hif = dht.computeHeatIndex(f, h); // Compute heat index in Celsius (isFahreheit = false) float hic = dht.computeHeatIndex(t, h, false);

Serial.print("Humidity: "); Serial.print(h); Serial.print(" %\t"); Serial.print("Temperature: "); Serial.print(t); Serial.print(" *C "); Serial.print(f); Serial.print(" *F\t"); Serial.print("Heat index: "); Serial.print(hic); Serial.print(" *C "); Serial.print(hif); //Serial.println(" *F");

}

void printWifiStatus() { // print the SSID of the network you're attached to: Serial.print("SSID: "); Serial.println(WiFi.SSID());

// print your WiFi shield's IP address: IPAddress ip = WiFi.localIP(); Serial.print("IP Address: "); Serial.println(ip);

// print the received signal strength: long rssi = WiFi.RSSI(); Serial.print("signal strength (RSSI):"); Serial.print(rssi); Serial.println(" dBm"); }