Archivio Autore

Arduino: Maggior controllo della luce – Resoconto attività 31 luglio 2014

Scritto da Alessandra De Rosa on . Postato in Formazione, Prodotti, Progetto Leonardo da Vinci, Servizi

Today we started a new project based on the last projects we’ve been doing, which consisted on controlling the temperature and light via web. For this one, we had more control of the light, because we added a feature where we turned on the led when the difference between the reference light and the actual light is greater than 10%.

Finally, we made the tutorial for this project with pictures, explanation and the code. We also made a video.

 

31 of July 2014

Alexandre Leitao

Gonçalo Neto

Tutorial Arduino: control of temperature and light with a buzzer – Controllo della temperature e della luminosità con l’aggiunta di un buzzer

Scritto da Alessandra De Rosa on . Postato in Formazione, Prodotti, Progetto Leonardo da Vinci, Servizi, Tutorials Arduino

For this tutorial consists on controlling the light using a buzzer and controlling the temperature.

Here are the components we used:

  • 1 Arduino
  • 1 Ethernet Shield
  • 1 Relay
  • 1 Temperature sensor
  • 1 Light sensor
  • 3 Leds
  • 3 Resistors
  • 1 Buzzer

The web page has one table for the temperature with a text box and the actual temperature and one simple table for the light.

Depending on the values we put comparing with the temperature, above the table appears text saying when to turn on/off the air conditioner.

For the light, depending on the light sensor gets, if the light level is 10% higher/lower than the internal reference temperature the buzzer makes sound (in the video it is set to 60%).

How it looks:

arduino temperature and light control refresh with buzzer

Same temperature:

arduino temperature and light control refresh with buzzer

Lower temperature:

arduino temperature and light control refresh with buzzer

Higher temperature:

arduino temperature and light control refresh with buzzer

Code:

#include <String.h>
#include <SPI.h>
#include <Ethernet.h>
byte mac[] = {  
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; // mac address
byte ip[] = { 
  192, 168, 1, 25 }; // ip arduino internet in
byte subnet[] = { 
  255, 255, 255, 0 }; //subnet mask
EthernetServer server(80); //server port
String readString; //string
String string;
int temp1=0 , temp2=0;
int vrif = 1.1;
int Rele = 0, lastlight=0;
int Ref_light=60;

void setup(){
  Ethernet.begin(mac, ip, subnet);
  analogReference(INTERNAL); //lowers the voltage reference
  pinMode(8,OUTPUT); //cold
  pinMode(9,OUTPUT); // hot
  pinMode(7,OUTPUT); // rele
  pinMode(6,OUTPUT);
  pinMode(5,INPUT);
  pinMode(0,INPUT);

  Serial.begin(9600);
}
void loop()
{
  /*Client*/

  int i=0; //y1 = temperatura e light = light level from user
  long int Rlight=0;
  float TempAverage=0;
  int y1=0, light=0, dif=0; // references posted by the user!
  EthernetClient client = server.available();

  TempAverage=analogRead(5);
  Rlight=analogRead(0);

  TempAverage = (90.0 * vrif * TempAverage) / 1024.0;

  Rlight*=100;
  Rlight/=1024;

  if (client) {
    boolean currentLineIsBlank = true;
    //tone(13,960,1000);
    while (1) 
    {
      if (client.available()) {

        char c = client.read();

        readString.concat(c); 
        //Serial.println(readString);
        //if HTTP request has ended
        if (c == '\n' &&  currentLineIsBlank) 
        {
          Serial.println(readString);
          string = readString;
          if(readString.indexOf("T=") > 0)
          {
            for(i=0;string[i];i++)
            {
              if(string[i] == 'T' && string[i+1] == '=' && string[i+2] >=48  && string[i+2] <=57 && string[i+3] >= 48 && string[i+3] <= 57) 
              {
                switch(string[i+2])
                {                                                                                                       
                case 48: 
                  y1+= 0; 
                  break;
                case 49: 
                  y1+=10; 
                  break;
                case 50: 
                  y1+=20; 
                  break;
                case 51: 
                  y1+=30; 
                  break;
                case 52: 
                  y1+=40; 
                  break;
                case 53: 
                  y1+=50; 
                  break;
                case 54: 
                  y1+=60; 
                  break;
                case 55: 
                  y1+=70; 
                  break;
                case 56: 
                  y1+=80; 
                  break;
                case 57: 
                  y1+=90; 
                  break;
                }
                switch(string[i+3])
                {
                case 48: 
                  y1+= 0; 
                  break;
                case 49: 
                  y1+=1; 
                  break;
                case 50: 
                  y1+=2; 
                  break;
                case 51: 
                  y1+=3; 
                  break;
                case 52: 
                  y1+=4; 
                  break;
                case 53: 
                  y1+=5; 
                  break;
                case 54: 
                  y1+=6; 
                  break;
                case 55: 
                  y1+=7; 
                  break;
                case 56: 
                  y1+=8; 
                  break;
                case 57: 
                  y1+=9; 
                  break;
                }
              }
            }
          }
          break;
        }
      }
    }

    Serial.println(y1);
    Serial.println(light);



    if(temp1 < (int)TempAverage && temp1 != 0)
    {
      Rele=1;
    }
    if(temp1 > (int)TempAverage && temp1 != 0)
    {
      Rele=1; 
    }
    if(temp1 == (int)TempAverage && temp1 != 0)
    {
      Rele=0;
    }
    if(Rele == 1)
    TempAverage-=12;

    // Web page:
    client.println("<!DOCTYPE html>");
    client.println("<?php session_start(); ?>");
    client.println("<html> "); 
    client.println("<table><tr><th>");
    client.println(" <tr><td><table border=""><tr><th>Reference Temperature </th>");
    client.println("<th><form action="" method=""get""><input type=""text"" name=""T"" value=""Insert value""><input type=""submit"" value=""check""><?phpif(!isset($_GET['temp']))$var_1 = "";else$var_1 = $_GET['temp'];$_SESSION['data'] = $var_1;?></th>");
    client.println("<tr></tr><th>Reference temperature set to </th><th>");
    if(y1 == 0)
      client.print(temp1);
    else
      client.print(y1);



    client.print("</th><tr>");
    client.println("<tr><th>Temperature of the room   </th><th>");
    if(Rele == 1)
      TempAverage-=12;
    else
    {
    }
    client.println(TempAverage);
    client.print("</th></tr>");
    client.println("</table></td>");
    client.println("<td></td><td><table border="">");
    client.println("<tr><th>Light leven of the room    </th><th>");
    client.print(Rlight);
    client.print("%</th></tr></table></td></tr>");
    client.println("</table>");
    if(temp1 < (int)TempAverage && temp1 != 0)
    {
      client.println("<p>Turn heater ON!</p>");
      digitalWrite(7,HIGH); // RELE
      digitalWrite(8,LOW); // blue
      digitalWrite(9,HIGH); // reed
    }
    if(temp1 > (int)TempAverage && temp1 != 0)
    {
      client.println("<p>Turn Air conditioner ON!</p>");
      digitalWrite(7,HIGH); // RELE
      digitalWrite(8,HIGH); // blue
      digitalWrite(9,LOW); // reed
    } 
    if(temp1 == (int)TempAverage && temp1 != 0)
    {
      client.println("<p>Teperature OK!</p>");
      digitalWrite(7,LOW); // REL
      digitalWrite(8,LOW); // green
      digitalWrite(9,LOW); // reed
    }  
    client.println("</body></html>");
    readString="";
    if(y1 != temp1 && y1 != 0)
      temp1=y1;
    if(light != temp2 && light != 0)
      temp2=light;
    client.stop();
   delay(2000);
    if(light > Ref_light+10)
    {
      tone(6,960,1000);
      delay(500);
    }
    if(light < Ref_light-10)
    {
      tone(6,960,1000);
      delay(500);
    }
  }
}


30 of July 2014

Alexandre Leitao

Gonçalo Neto

Arduino: un buzzer che segnala le variazioni di luminosità – Resoconto attività 30 luglio 2014

Scritto da Alessandra De Rosa on . Postato in Formazione, Prodotti, Progetto Leonardo da Vinci, Servizi

Today we started a new project based on the project from yesterday. We added a buzzer which makes noise when the light level is 10% higher/lower than the internal reference temperature (it is set to 60% by default).

We managed to finish it, however we had some problems referring to the energy management and the buzzer.

In the end we made a tutorial with pictures and explanation and a video.

 

30 of July 2014

Alexandre Leitao

Gonçalo Neto

Tutorial arduino: room light and temperature levels check and adjust with autorefresh

Scritto da Alessandra De Rosa on . Postato in Formazione, Prodotti, Progetto Leonardo da Vinci, Servizi, Tutorials Arduino

For this tutorial, we’re going to explain you all about this project, which consists on controlling the temperature and the light from the web page. It’s based on old projects but this one has new features.

Here are the components we used:

  • 1 Arduino
  • 1 Ethernet Shield
  • 1 Relay
  • 1 Temperature sensor
  • 1 Light sensor
  • 3 Leds
  • 3 Resistors

The web page has two different tables, one for the temperature and one for the light. Above the text boxes appears the value we put in the text box, which represents the temperature/light we want it to be. Above that there’s the actual temperature/light in the room where the sensor is located.

Depending on the values we put comparing with the temperature, above the table appears text saying when to turn on/off the air conditioner.

How it looks:

arduino temperature and light control refresh

Same temperature:

arduino temperature and light control refresh

Lower temperature:

arduino temperature and light control refresh

Higher temperature:

arduino temperature and light control refresh

Code:

#include <String.h>

#include <SPI.h>

#include <Ethernet.h>



byte mac[] = {  
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; // mac address

byte ip[] = { 
  192, 168, 1, 25 }; // ip arduino internet in

byte subnet[] = { 
  255, 255, 255, 0 }; //subnet mask

EthernetServer server(80); //server port


int outPin = 9; // pin

String readString; //string

int temp1=0 , temp2=0;

int vrif = 1.1;

int Rele = 0;

void setup(){

  Ethernet.begin(mac, ip, subnet);
  pinMode(outPin, OUTPUT);
  analogReference(INTERNAL); //lowers the voltage reference
  pinMode(8,OUTPUT); //cold
  pinMode(9,OUTPUT); // hot
  pinMode(7,OUTPUT); // rele

  pinMode(5,INPUT);
  pinMode(0,INPUT);

  Serial.begin(9600);
}



void loop()

{
  /*Client*/
  String string;
  int i=0; //y1 = temperatura e light = light level from user
  long int Rlight=0;
  float TempAverage=0;
  int y1=0, light=0; // references posted by the user!
  EthernetClient client = server.available();





  TempAverage=analogRead(5);
  Rlight=analogRead(0);


  TempAverage = (95.0 * vrif * TempAverage) / 1024.0;

  Rlight*=100;
  Rlight/=1024;


  if (client) {

    boolean currentLineIsBlank = true;




    while (1) 
    {
      if (client.available()) {

        char c = client.read();

        readString.concat(c); 

        //Serial.println(readString);


        //if HTTP request has ended

        if (c == '\n' &&  currentLineIsBlank) 
        {

          Serial.println(readString);
          string = readString;
          if(readString.indexOf("T=") > 0)
          {
            for(i=0;string[i];i++)
            {
              if(string[i] == 'T' && string[i+1] == '=' && string[i+2] >=48 && string[i+3] <= 57) 
              {

                switch(string[i+2])
                {                                                                                                       
                case 48: 
                  y1+= 0; 
                  break;
                case 49: 
                  y1+=10; 
                  break;
                case 50: 
                  y1+=20; 
                  break;
                case 51: 
                  y1+=30; 
                  break;
                case 52: 
                  y1+=40; 
                  break;
                case 53: 
                  y1+=50; 
                  break;
                case 54: 
                  y1+=60; 
                  break;
                case 55: 
                  y1+=70; 
                  break;
                case 56: 
                  y1+=80; 
                  break;
                case 57: 
                  y1+=90; 
                  break;
                }
                switch(string[i+3])
                {
                case 48: 
                  y1+= 0; 
                  break;
                case 49: 
                  y1+=1; 
                  break;
                case 50: 
                  y1+=2; 
                  break;
                case 51: 
                  y1+=3; 
                  break;
                case 52: 
                  y1+=4; 
                  break;
                case 53: 
                  y1+=5; 
                  break;
                case 54: 
                  y1+=6; 
                  break;
                case 55: 
                  y1+=7; 
                  break;
                case 56: 
                  y1+=8; 
                  break;
                case 57: 
                  y1+=9; 
                  break;
                }

              }
            }

          }


          if(readString.indexOf("L=") > 0)
          {
            for(i=0;string[i];i++)
            {
              if(string[i] == 'L' &&string[i+1] == '=' && string[i+2] >=48 && string[i+3] <= 57) 
              {

                switch(string[i+2])
                {                                                                                                       
                case 48: 
                  light+= 0; 
                  break;
                case 49: 
                  light+=10; 
                  break;
                case 50: 
                  light+=20; 
                  break;
                case 51: 
                  light+=30; 
                  break;
                case 52: 
                  light+=40; 
                  break;
                case 53: 
                  light+=50; 
                  break;
                case 54: 
                  light+=60; 
                  break;
                case 55: 
                  light+=70; 
                  break;
                case 56: 
                  light+=80; 
                  break;
                case 57: 
                  light+=90; 
                  break;
                }
                switch(string[i+3])
                {
                case 48: 
                  light+= 0; 
                  break;
                case 49: 
                  light+=1; 
                  break;
                case 50: 
                  light+=2; 
                  break;
                case 51: 
                  light+=3; 
                  break;
                case 52: 
                  light+=4; 
                  break;
                case 53: 
                  light+=5; 
                  break;
                case 54: 
                  light+=6; 
                  break;
                case 55: 
                  light+=7; 
                  break;
                case 56: 
                  light+=8; 
                  break;
                case 57: 
                  light+=9; 
                  break;
                }

              }
            }
          }



          break;
        }



      }
    }
 

    if(temp1 < (int)TempAverage && temp1 != 0)
    {
      Rele=1;
    }
    if(temp1 > (int)TempAverage && temp1 != 0)
    {
     Rele=1; 
    }
    if(temp1 == (int)TempAverage && temp1 != 0)
    {
      Rele=0;
    }

    // Web page:

    client.println("<!DOCTYPE html>");
    client.println("<?php session_start(); ?>");

    client.println("<html> "); 

    client.println("<table><tr><th>");
   /* client.println("<table border=""><tr><th>System Status</th><th> ");
    if(Rele == 1)
    {
      client.println("ON");     
      client.println("</th></table><th></th></tr>");
    }
    else
    {
     client.println("OFF");
     client.println("</th></table><th></th></tr>");
    }
    */
    client.println(" <tr><td><table border=""><tr><th>Reference Temperature </th>");
    client.println("<th><form action="" method=""get""><input type=""text"" name=""T"" value=""Insert value""><input type=""submit"" value=""check""><?phpif(!isset($_GET['temp']))$var_1 = "";else$var_1 = $_GET['temp'];$_SESSION['data'] = $var_1;?></th>");
    client.println("<tr></tr><th>Reference temperature set to </th><th>");

    if(y1 == 0)
    client.print(temp1);
    else
    client.print(y1);



    client.print("</th><tr>");
    client.println("<tr><th>Temperature of the room   </th><th>");
    if(Rele == 1)
    TempAverage-=12;
    else
    {
    }
    client.println(TempAverage);
    client.print("</th></tr>");
    
    
    
    
    
    
    client.println("</table></td>");
    


    client.println("<td></td><td><table border=""><tr><th>Reference Light</th><th>");
    client.println("<form action="" method=""get""><input type=""text"" name=""L"" value=""Insert percentage""><input type=""submit"" value=""Try""><?phpif(!isset($_GET['temp']))$var_2 = "";else$var_2 = $_GET['temp'];$_SESSION['data'] = $var_2;?></th></tr>");
    client.println("<tr></tr><th>Refence light set to </th><th>");
    
    if(light == 0)
    client.print(temp2);
    else
    client.print(light);
    
    client.print("%</th>");
    client.println("<tr><th>Light leven of the room    </th><th>");
    client.print(Rlight);
    client.print("%</th></tr></table></td></tr>");

    client.println("</table>");
    
    
    if(temp1 < (int)TempAverage && temp1 != 0)
    {
      client.println("<p>Turn heater ON!</p>");
      digitalWrite(7,HIGH); // RELE
      digitalWrite(8,LOW); // blue
      digitalWrite(9,HIGH); // reed
      
    }
    if(temp1 > (int)TempAverage && temp1 != 0)
    {
      client.println("<p>Turn Air conditioner ON!</p>");
      digitalWrite(7,HIGH); // RELE
      digitalWrite(8,HIGH); // blue
      digitalWrite(9,LOW); // reed
    } 
     if(temp1 == (int)TempAverage && temp1 != 0)
    {
      client.println("<p>Teperature OK!</p>");
      digitalWrite(7,LOW); // REL
      digitalWrite(8,LOW); // green
      digitalWrite(9,LOW); // reed
    } 
    
    
    
    client.println("</body></html>");

    readString="";

    if(y1 != temp1 && y1 != 0)
   temp1=y1;
  
  if(light != temp2 && light != 0)
   temp2=light;
   
    client.stop();


  }
}


   29 of July 2014

Alexandre Leitao

Gonçalo Neto

Arduino: risoluzione bug e nuove aggiunte al progetto – Resoconto attività 29 luglio 2014

Scritto da Alessandra De Rosa on . Postato in Formazione, Prodotti, Progetto Leonardo da Vinci, Servizi

Today we kept trying to fix the bug we already had from yesterday. Fortunately, we were able to find it and fix it.

 With the bug out of the code, we managed to continue working on the project, which was controlling the temperature and the light from the web page. It’s based on old projects, but we added new features.

In the end, we made a video and a tutorial that includes pictures, detailed explanation and the code we used.

 

29 of July 2014

Alexandre Leitao

Gonçalo Neto

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