Rasvjetom u kući upravlja mikrokontroler. Koristi tri senzora (PIR, ultrazvučni senzor za mjerenje udaljenosti, i senzor za pritisak). Rasvjetom je također moguće upravljati preko interneta koristeći browser. Dodali smo i mogućnost otvaranja garažnih vrata preko interneta, ali i preko senzora pokreta.

Pokušali smo na najjednostavniji način prikazati spajanje komponenti. Tipkalo nije identičan senzor koji smo koristili, nego se radi o tipu senzora kućne izrade.

Shemu ovoga projekta možete preuzeti ovdje.

#define BLYNK_PRINT /*

#include 
Servo myservo;
int servopos = 180; //pocetna vrijednost servo motora (vrata zatvorena)
bool vrata = true; // true - zatvorena, false - otvorena
bool onlinevrata = true; //varijabla koja omogucuje otvaranje vrata preko interneta

bool onlineA = true;  //varijabla koja omogucuje paljenje/gasenje svjetla u sobi A preko interneta
bool onlineB = true;  //varijabla koja omogucuje paljenje/gasenje svjetla u sobi B preko interneta
bool onlineC = true;  //varijabla koja omogucuje paljenje/gasenje svjetla u sobi C preko interneta
bool onlineD = true;  //varijabla koja omogucuje paljenje/gasenje svjetla u sobi D preko interneta


#define pr A1 //fotorezistor na pinu A1

#define pirB 0 //senzor pokreta na pinu 0
#define pirD 1 //senzor pokreta na pinu 1

#define ledA 2 //svjetla sobe A na pinu 2
#define ledB 3 //svjetla sobe B na pinu 3
#define ledC 4 //svjetla sobe C na pinu 4
#define ledD 5 //svjetla sobe D na pinu 5

#define trigPin 6 //ultrazvucni senzor udaljenosti ,trgger na pinu 6
#define echoPin 7 //ultrazvucni senzor udaljenosti ,echo na pinu 7

//////////////////////////////////////////////////////////////////////////////////////////////////
#include 
#include 

///////please enter your sensitive data in the Secret tab/arduino_secrets.h
char ssid[] = "ARDUINO";        // your network SSID (name)
char pass[] = "Arduino123";    // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0;                // your network key Index number (needed only for WEP)

int status = WL_IDLE_STATUS;
WiFiServer server(80);
//////////////////////////////////////////////////////////////////////////////////////////////////////////

void setup() {
  Serial.begin(9600);
  
  pinMode(pr, INPUT);

  pinMode(pirB, INPUT);
  pinMode(pirD, INPUT);
  
  pinMode(ledA, OUTPUT);
  pinMode(ledB, OUTPUT);
  pinMode(ledC, OUTPUT);
  pinMode(ledD, OUTPUT);
  
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);

  myservo.attach(8);  //servo motor za podizanje garaznih vrata
  
  //////////////////////////////////// Kreiraj mrezu (LAN) ////////////////////////////////

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

  Serial.println("Access Point Web Server");

  //pinMode(led, OUTPUT);      // set the LED pin mode

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

  // by default the local IP address of will be 192.168.1.1
  // you can override it with the following:
  // WiFi.config(IPAddress(10, 0, 0, 1));

  // print the network name (SSID);
  Serial.print("Creating access point named: ");
  Serial.println(ssid);

  // Create open network. Change this line if you want to create an WEP network:
  status = WiFi.beginAP(ssid);
  if (status != WL_AP_LISTENING) {
    Serial.println("Creating access point failed");
    // don't continue
    while (true);
  }

  // wait 3 seconds for connection:
  delay(3000);

  // start the web server on port 80
  server.begin();

  // you're connected now, so print out the status
  printWiFiStatus();
//////////////////////////////////////////////////////////////////////////////////////////////////////////
}

void printWiFiStatus() {   ///////////////////// za otvaranje vrata preko mreze///////////////////////////
  // 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");
  // print where to go in a browser:
  Serial.print("To see this page in action, open a browser to http://");
  Serial.println(ip);

}


bool distSens(){                     // funkcija koja vraca ocitanu udaljenost sa ultrazvucnog senzora udaljenosti
  long duration, distance;
  digitalWrite(trigPin, LOW); 
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
  Serial.print("dist: ");
  Serial.println(distance);

  if (distance < 17.5){ return (true); } else{ return (false); } //return(distance); } // stanje pir = digiralRead(pir); // stanje pr = analogRead(pr); void garaza(){ // otvori - zatvori vrata if (vrata) { // ako su vrata zatvorena -> otvori
    for (servopos = 170; servopos >= 20; servopos--){
      myservo.write(servopos);
      delay(5);
      //Serial.println("otvaram vrata");
    }
    vrata = false;
    Serial.println("vrata otvorena");
  }
  else { //vrata su otvorena -> zatvori
    for (servopos = 20; servopos <= 170; servopos++){ myservo.write(servopos); delay(5); //Serial.println("zatvaram vrata"); } vrata = true; Serial.println("vrata zatvorna"); } } int L[5]= {0, 0, 0, 0, 0}; int br = 0; bool night = true; // true - noc, false - dan bool isNight(){ Serial.print("pr: "); Serial.println(analogRead(pr)); L[br] = analogRead(pr); br++; if (br >= 5){
      br = 0;
    }

    if (L[0]<820 && L[1]<820 && L[2]<820 && L[3]<820 && L[4]<820){
      Serial.println("<820"); return (true); } if (L[0]>=850 && L[1]>=850 && L[2]>=850 && L[3]>=850 && L[4]>=850){
      Serial.println(">=850");
      return (false);
    }
    return(night);
}  // koristiti: night = isNight()  // očitavanja zahtjevaj svakih 500 ms

bool pokretD(){
  if (digitalRead(pirD)){
    return(true);
  }
  else{
    return (false);
  }
}

bool pokretB(){
  if (digitalRead(pirB)){
    return(true);
  }
  else{
    return (false);
  }
}


void loop() {
  delay(100);
  if (Serial.available() > 0){
    char data = Serial.read();
    if (data == 'a'){
      onlinevrata = false;
      garaza();
      
    }
  }
  //////////////////////////////////////////////// otvaranje vrata preko mreže /////////////////////////////////////////////////

// compare the previous status to the current status
  if (status != WiFi.status()) {
    // it has changed update the variable
    status = WiFi.status();

    if (status == WL_AP_CONNECTED) {
      byte remoteMac[6];

      // a device has connected to the AP
      Serial.print("Device connected to AP, MAC address: ");
      WiFi.APClientMacAddress(remoteMac);
      Serial.print(remoteMac[5], HEX);
      Serial.print(":");
      Serial.print(remoteMac[4], HEX);
      Serial.print(":");
      Serial.print(remoteMac[3], HEX);
      Serial.print(":");
      Serial.print(remoteMac[2], HEX);
      Serial.print(":");
      Serial.print(remoteMac[1], HEX);
      Serial.print(":");
      Serial.println(remoteMac[0], HEX);
    } else {
      // a device has disconnected from the AP, and we are back in listening mode
      Serial.println("Device disconnected from AP");
    }
  }
  
  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,
        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();

            // the content of the HTTP response follows the header:
            client.print("Otvori/Zatvori garazna vrata.
");
            client.print("
");
            client.print("Upali/Ugasi svjelo u prostorji A.
");
            client.print("
");
            client.print("Upali/Ugasi svjelo u prostorji B.
");
            client.print("
");
            client.print("Upali/Ugasi svjelo u prostorji C.
");
            client.print("
");
            client.print("Upali/Ugasi svjelo u prostorji D.
");

            // 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,
          currentLine += c;      // add it to the end of the currentLine
        }

        // Check to see if the client request was "GET /H" or "GET /L":
        if (currentLine.endsWith("GET /GH") && vrata) {  // GET /GH otvara garazu
          garaza();
          onlinevrata = false;
        }
        if (currentLine.endsWith("GET /GL") && !vrata) {   // GET /GL zatvara garazu
          garaza();
          onlinevrata = false;              
        }
        if (currentLine.endsWith("GET /AH")) {   // GET /AH pali svjetlo u sobi A
          digitalWrite(ledA, HIGH);
          onlineA = false;              
        }
        if (currentLine.endsWith("GET /AL")) {   // GET /AH gasi svjetlo u sobi A
          digitalWrite(ledA, LOW);
          onlineA = true;              
        }
        if (currentLine.endsWith("GET /BH")) {   // GET /BH pali svjetlo u sobi B
          digitalWrite(ledB, HIGH);
          onlineB = false;              
        }
        if (currentLine.endsWith("GET /BL")) {   // GET /BH gasi svjetlo u sobi B
          digitalWrite(ledB, LOW);
          onlineB = true;              
        }
        if (currentLine.endsWith("GET /CH")) {   // GET /CH pali svjetlo u sobi C
          digitalWrite(ledC, HIGH);
          onlineC = false;              
        }
        if (currentLine.endsWith("GET /CL")) {   // GET /CH gasi svjetlo u sobi C
          digitalWrite(ledC, LOW);
          onlineC = true;              
        }
        if (currentLine.endsWith("GET /DH")) {   // GET /DH pali svjetlo u sobi D
          digitalWrite(ledD, HIGH);
          onlineD = false;              
        }
        if (currentLine.endsWith("GET /DL")) {   // GET /DH gasi svjetlo u sobi D
          digitalWrite(ledD, LOW);
          onlineD = true;              
        }
      }
    }
    // close the connection:
    client.stop();
    Serial.println("client disconnected");
  }

  //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////  


  if (isNight()){  // svjetla rade samo po danu!, provjeravaj pojedinacno senzore i pali/gasi svjetla  

    
    if (distSens()){
      digitalWrite(ledA, HIGH);
      onlineA = true;
    }
      else if (onlineA){
        digitalWrite(ledA, LOW);
      }

    if (pokretB()){
      digitalWrite(ledB, HIGH);
      onlineB = true;
    }
      else if (onlineB){
        digitalWrite(ledB, LOW);
      }

    if (!vrata){
      digitalWrite(ledC, HIGH);
      onlineC = true;
    }
      else if (onlineC){
        digitalWrite(ledC, LOW);
      }

    if (pokretD()){
      digitalWrite(ledD, HIGH);
      onlineD = true;
    }
      else if (onlineD){
        digitalWrite(ledD, LOW);
      }
  }
  else{
    digitalWrite(ledA, LOW);
    digitalWrite(ledB, LOW);
    digitalWrite(ledC, LOW);
    digitalWrite(ledD, LOW);
  }

  // garazna vrata
  
  if (pokretD()){
    onlinevrata = true;
  }
  if (pokretD() && vrata && onlinevrata){
    garaza();
  }
  else if(!pokretD() && !vrata && onlinevrata){
    garaza();
  }
    
}

Arduino program ovoga projekta možete preuzeti ovdje.

Projekt su izradili Marin Francuz i Ivor Kakuk uz mentorstvo Sanje Grabusin iz Gimnazije Požega. Projekt je prijavljen na temu: Internet of Things: Pametna rasvjeta.