Home Auto-Control System

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

char ssid[] = "Chess";      //  your network SSID (name) 
char pass[] = "test2015";   // your network password
int keyIndex = 0;                 // your network key Index number (needed only for WEP)

int status = WL_IDLE_STATUS;
WiFiServer server(8081);

void setup() 
{
  Serial.begin(9600);     // initialize serial communication
  pinMode(4, INPUT);      // read the button value
  pinMode(A0, INPUT);      // read the angular sensor value

  
  // check for the presence of the shield:
  if (WiFi.status() == WL_NO_SHIELD) 
  {
    Serial.println("WiFi shield not present"); 
    while(true);        // don't continue
  } 
  
  // check the firmware version
  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 Network named: ");
    Serial.println(ssid);                   // print the network name (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();                           // start the web server on port 80
  printWifiStatus();                        // you're connected now, so print out the status
}


void loop() 
{
  WiFiClient client = server.available();   // listen for incoming clients
  
  if (client)                               // if you get a client,
  {                             
    Serial.println("new client");          // print a message out the serial port
    String currentLine = "";                // make a String to hold incoming data from the client
    
    while (client.connected())              // loop while the client's connected
    {                                       
      if (client.available())               // if there's bytes to read from the client,
      {             
        int angleValue = analogRead(A0);
        int buttonValue = digitalRead(4);
        
        char c = client.read();             // read a byte, then
        Serial.write(c);                   // print it out the serial monitor
        if (c == '\n')                      // if the byte is a newline character
        {                    
                                            // if the current line is blank, you got two newline characters in a row.
                                            // that's the end of the client HTTP request, so send a response:
          if (currentLine.length() == 0)  
          {  
            // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
            // and a content-type so the client knows what's coming, then a blank line:    
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println();

            if(buttonValue == 0)
            {
              client.print("You forgot to close the door");
            }
            else if(angleValue > 20)
            {
              client.print("You forgot to lock the door");
            }
            else
            {
              client.print("Your door is locked");
            }

            // The HTTP response ends with another blank line:
            client.println();
            // break out of the while loop:
            break;         
          } 
          else 
          {      // if you got a newline, then clear currentLine:
            currentLine = "";
          }
        } 

        else if (c != '\r')       // if you got anything else but a carriage return character, add it to the end of the currentLine
        {    
          currentLine += c;
        }

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

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);
}

//Attention: all the values in this code is for demo use only

#include <Wire.h>
#include <math.h>
#include <SPI.h>
#include <WiFi.h>

//Wi-Fi setup
char ssid[] = "Chess";        //  your network SSID (name) 
char pass[] = "test2015";     // your network password
int keyIndex = 0;             // your network key Index number (needed only for WEP)
int status = WL_IDLE_STATUS;
WiFiServer server(8081);

//motor
#define MotorSpeedSet             0x82
#define PWMFrequenceSet           0x84
#define DirectionSet              0xaa
#define MotorSetA                 0xa1
#define MotorSetB                 0xa5
#define Nothing                   0x01
#define I2CMotorDriverAdd         0x0f   // Set the address of the I2CMotorDriver

//temperature&02
#define version  11
const int pinO2  = A1;
const int AMP  =121;
const float K_O2  =7.43;
int a;
float temperature;
int B=3975;
float resistance;

//oxygen
float sensorValue;
float sensorVoltage;
float Value_O2;


void MotorSpeedSetAB(unsigned char MotorSpeedA , unsigned char MotorSpeedB)
{
  MotorSpeedA=map(MotorSpeedA,0,100,0,255);
  MotorSpeedB=map(MotorSpeedB,0,100,0,255);
  Wire.beginTransmission(I2CMotorDriverAdd);    // transmit to device I2CMotorDriverAdd
  Wire.write(MotorSpeedSet);                    // set pwm header 
  Wire.write(MotorSpeedA);                      // send pwma 
  Wire.write(MotorSpeedB);                      // send pwmb    
  Wire.endTransmission();                       // stop transmitting
}

void MotorPWMFrequenceSet(unsigned char Frequence)
{    
  Wire.beginTransmission(I2CMotorDriverAdd);      // transmit to device I2CMotorDriverAdd
  Wire.write(PWMFrequenceSet);                    // set frequence header
  Wire.write(Frequence);                          //  send frequence 
  Wire.write(Nothing);                            //  need to send this byte as the third byte(no meaning)  
  Wire.endTransmission();                         // stop transmitting
}

void MotorDirectionSet(unsigned char Direction)       //  Adjust the direction of the motors 0b0000 I4 I3 I2 I1
{
  Wire.beginTransmission(I2CMotorDriverAdd);          // transmit to device I2CMotorDriverAdd
  Wire.write(DirectionSet);                           // Direction control header
  Wire.write(Direction);                              // send direction control information
  Wire.write(Nothing);                                // need to send this byte as the third byte(no meaning)  
  Wire.endTransmission();                             // stop transmitting 
}

void MotorDriectionAndSpeedSet(unsigned char Direction,unsigned char MotorSpeedA,unsigned char MotorSpeedB)    //you can adjust the driection and speed together
{
  MotorDirectionSet(Direction);
  MotorSpeedSetAB(MotorSpeedA,MotorSpeedB);  
}

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);
}

void setup()  
{
  Serial.begin(9600);
  Wire.begin(); // join i2c bus (address optional for master)

  pinMode(A0, INPUT);
  pinMode(A1, INPUT);

  // check for the presence of the shield:
  if (WiFi.status() == WL_NO_SHIELD) 
  {
    Serial.println("WiFi shield not present"); 
    while(true);        // don't continue
  } 
  // check the firmware version
  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 Network named: ");
    Serial.println(ssid);                   // print the network name (SSID);
    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:    
    status = WiFi.begin(ssid, pass);
  }
  delayMicroseconds(10000); //wait for motor driver to initialization
}



void loop()
{
  WiFiClient client = server.available();   // listen for incoming clients
  
  if (client)                               // if you get a client,
  {                             
    Serial.println("new client");          // print a message out the serial port
    String currentLine = "";                // make a String to hold incoming data from the client
  
    while (client.connected())              // loop while the client's connected
    {                                       
      if (client.available())               // if there's bytes to read from the client,
      {
        // read and print temperature sensor value
        a=analogRead(A0);
        resistance=(float)(1023-a)*10000/a;5;
        temperature=1/(log(resistance/10000)/B+1/298.15)-273.15;
        delay(1000);
        sensorValue =analogRead(A1);
        sensorVoltage=(sensorValue/1024.0)*5.0;
        sensorVoltage=sensorVoltage/(float)AMP*10000.0;
        Value_O2 =sensorVoltage/K_O2;

        char c = client.read();             
        Serial.write(c);                   
        if (c == '\n')                      
        {
          if (currentLine.length() == 0)  
          {  
            // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
            // and a content-type so the client knows what's coming, then a blank line:    
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println();

            // print temperature value online
            client.print("Current temperature is ");
            client.println(temperature);
            
            // print oxygen percentage online
            client.print("Concentration of O2 is ");
            client.print(Value_O2,1);
            client.println("%");
            delay(1000);
 
            if ((temperature>=10) && (Value_O2>=27))
            {
              // the air quality is good to open the window
              client.println("The air outdoor is good, you can open the window for circulation");
              MotorSpeedSetAB(100,20);
              delay(10);
              MotorDirectionSet(0b1010);  // rotate in the positive direction to open the window
              delay(10000);
              MotorSpeedSetAB(0,0);
              // close the window after fixed time
              client.println("It's time to close the window");
              MotorDirectionSet(0b0101);  // rotating in the opposite direction to close the window
              MotorSpeedSetAB(100,20);
              delay(10000);
              MotorSpeedSetAB(0,0);
            }
          }
          else 
          {      // if you got a newline, then clear currentLine:
            currentLine = "";
          }
        }
        else if (c != '\r')       // if you got anything else but a carriage return character, add it to the end of the currentLine
        {    
          currentLine += c;
        }
      }
    }

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