fanserver.ino

#include <Bridge.h>
#include <YunServer.h>
#include <YunClient.h>
#include <SPI.h>
#include <Ethernet.h>

int LEDPIN = 11; // your LED PIN

int LED2    =  3;
int LED3    =  4;
int LED4    =  5;
int tempPin0 =  0;
int tempPin1 =  1;
int tempPin2 =  2;
//static bool statusFans = false;

float temp;

YunServer server;

bool Contains(String s, String search) {
  int max = s.length() - search.length();

  for (int i = 0; i <= max; i++) {
    if (s.substring(i) == search) return true; // or i
  }

  return false; //or -1
}

void setup() {
  // Start our connection
  Serial.begin(9600);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);


  //digitalWrite(LEDPIN,HIGH); // turn on Led while connecting
  Bridge.begin();

  // server.listenOnLocalhost();
  server.begin();

}

void loop() {
  // Listen for clients
  YunClient client = server.accept();
  // Client exists?
  if (client) {
    // Lets process the request!
    process(client);
    client.stop();
  }


  CheckTemperature();

  delay(5000);
}

void CheckTemperature() { 
  
    //getting the voltage reading from the temperature sensor
    int reading = analogRead(tempPin0);
    float mv = ( reading / 1024.0) * 5000;
    float cel = mv / 10;
    Serial.print(cel); Serial.println(" degress C");

    reading = analogRead(tempPin1);
    mv = ( reading / 1024.0) * 5000;
    float cel2 = mv / 10;

    Serial.print(cel2); Serial.println(" Sensor 2 degrees C:");

    reading = analogRead(tempPin2);
    mv = ( reading / 1024.0) * 5000;
    cel = mv / 10;

    Serial.print(cel); Serial.println(" Sensor 3 degrees C:");


    if (cel2 > 36.50)
    {
      digitalWrite(LED2, HIGH);
      digitalWrite(LED3, HIGH);
      digitalWrite(LED4, HIGH);

      Serial.print("Turn On 3 fans");
    }
    else if (cel2 > 30.50 && cel2 < 36.49) {

      digitalWrite(LED2, HIGH);
      digitalWrite(LED3, HIGH);
      digitalWrite(LED4, LOW);
      Serial.print("Turn On 2 fans");
    }
    else {

      digitalWrite(LED2, LOW);
      digitalWrite(LED3, LOW);
      digitalWrite(LED4, LOW);
    }
}

void process(YunClient client) {
  // Collect user commands
  String command = "0"; //client.readStringUntil('\\'); // load whole string


  // String command = client.readStringUntil('/');

  // Enable HTML
  client.println("Status: 200");
  client.println("Content-type: text/html");
  client.println();

  // Show UI
  client.println("<B><Center>");
  client.println("<a href='http://www.ericklan.com:8080/arduino/1\\'>Turn ON LED</a><br>");
  client.println("<a href='http://www.ericklan.com:8080/arduino/2\\'>Turn OFF LED</a><br>");

  client.println("<a href='http://www.ericklan.com:8080/arduino/3\\'>Turn ON TURBO</a><br>");
  client.println("<a href='http://www.ericklan.com:8080/arduino/4\\'>Turn OFF TURBO</a><br>");


  client.print("Command: ");
  client.println(command);
  client.println("</B></Center>");

  //command.trim();
/*
  int inChar = command.toInt();
  // Turn on
  if (inChar == 1)   {

    client.print("Command: ");
    client.println(command);
    digitalWrite(LED2, HIGH);

    digitalWrite(LED3, HIGH);

  }

  // Turn off
  if (inChar == 2) {
    digitalWrite(LED2, LOW);

    digitalWrite(LED3, LOW);
  }


  // Turn off
  if (inChar == 3) {
    digitalWrite(LED2, HIGH);
    digitalWrite(LED3, HIGH);
    digitalWrite(LED4, HIGH);
  }

  if (inChar == 4) {
    digitalWrite(LED4, LOW);

  }

  */

  //getting the voltage reading from the temperature sensor
  int reading = analogRead(tempPin0);

  client.println("reading: ");
  client.println(reading);


  float mv = ( reading / 1024.0) * 5000;

  float cel = mv / 10;


  client.println("Sensor 1 degrees C: ");
  client.println(cel);
  Serial.print(cel); Serial.println(" degress C");



  reading = analogRead(tempPin1);
  mv = ( reading / 1024.0) * 5000;
  float cel2 = mv / 10;

  client.println("Sensor 2 degrees C: ");
  client.println(cel2);
  Serial.print(cel2); Serial.println(" degress C");


  reading = analogRead(tempPin2);
  mv = ( reading / 1024.0) * 5000;
  cel = mv / 10;
  client.println("Sensor 3 degrees C: ");
  client.println(cel);
  Serial.print(cel); Serial.println(" degress C");
  delay(90);
}