Smart home for reduced mobility people with oneM2M/ESP8266

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>
#include <ArduinoJson.h>
#include <Wire.h>
#include "rgb_lcd.h"
#include <string>


String header;
WiFiServer server(80);


const char* ssid = "ENTER-YOUR-WIFI-SSID";     // Configure here the SSID of your WiFi Network
const char* password =  "ENTER-YOUR-WIFI-PASSWORD"; // Configure here the PassWord of your WiFi Network

//Your Domain name with URL path or IP address with path
const char* serverName = "http://172.20.10.2:1880/temperature";

// the following variables are unsigned longs because the time, measured in
// milliseconds, will quickly become a bigger number than can be stored in an int.
unsigned long lastTime = 0;
// Timer set to 10 minutes (600000)
//unsigned long timerDelay = 600000;
// Set timer to 5 seconds (5000)
unsigned long timerDelay = 5000;

// Current time
unsigned long currentTime = millis();
// Previous time
unsigned long previousTime = 0; 
// Define timeout time in milliseconds (example: 2000ms = 2s)
const long timeoutTime = 2000;


//// Auxiliar variables to store the current output state
//String output5State = "off";
//String output4State = "off";
//
//// Assign output variables to GPIO pins
//const int output5 = 5;
//const int output4 = 4;

//Temperature Constant
const int B = 4275;               // B value of the thermistor
const int R0 = 100000;            // R0 = 100k
const int pinTempSensor = A0;     // Grove - Temperature Sensor connect to A0

//Lcd
rgb_lcd lcd;

float get_temperature() {
  int a = analogRead(pinTempSensor);
  float R = 1023.0/a-1.0;
  R = R0*R;
  float temperature = 1.0/(log(R/R0)/B+1/298.15)-273.15; // convert to temperature via datasheet
  
  return temperature;
}


void printLcdBacklight(String line1, String line2, String color, int blinkScreen) {
  lcd.display();
  lcd.clear();
  int colorR = 0;
  int colorG = 0;
  int colorB = 0;
  if (color.equals("RED")) {
    colorR = 255;
    colorG = 0;
    colorB = 0;
  } else if (color.equals("GREEN")) {
    colorR = 0;
    colorG = 255;
    colorB = 0;
  } else if (color.equals("BLUE")) {
    colorR = 0;
    colorB = 255;
    colorG = 0;
  } else if (color.equals("WHITE")) {
    colorR = 255;
    colorB = 255;
    colorG = 255;
  } else if (color.equals("BLACK")) {
    colorR = 0;
    colorB = 0;
    colorG = 0;
  }

  if (line1 != NULL) {
    lcd.setRGB(colorR, colorG, colorB);
    lcd.setCursor(0, 0);
    lcd.print(line1);
    if (blinkScreen == 1) {
      lcd.blinkLED();
    } else {
      lcd.noBlinkLED();
    }
    if (line2 != NULL) {
      lcd.setCursor(0, 1);
      lcd.print(line2);
    }
  }
}

void setup() {
  Serial.begin(115200);
  //LCD
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  lcd.noBlinkLED();
  lcd.noDisplay();

//  // Initialize the output variables as outputs
//  pinMode(output5, OUTPUT);
//  pinMode(output4, OUTPUT);
//  // Set outputs to LOW
//  digitalWrite(output5, LOW);
//  digitalWrite(output4, LOW);



  

  WiFi.begin(ssid, password);
  Serial.println("Connecting");
  while(WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to WiFi network with IP Address: ");
  Serial.println(WiFi.localIP());
 
  Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading.");

  server.begin();

}

void loop() {

  WiFiClient client = server.available();   // Listen for incoming clients

  if (client) {                             // If a new client connects,
    Serial.println("New Client.");          // print a message out in the serial port
    String currentLine = "";                // make a String to hold incoming data from the client
    currentTime = millis();
    previousTime = currentTime;
    while (client.connected() && currentTime - previousTime <= timeoutTime) { // loop while the client's connected
      currentTime = millis();         
      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
        header += c;
        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("Connection: close");
            client.println();
            
            // turns the GPIOs on and off
            if (header.indexOf("GET /ESP2") >= 0) {
              Serial.println("LETS GOOOOO");
            } else if (header.indexOf("GET /BABY") >= 0) {
              Serial.println("Baby detected");
              printLcdBacklight("Baby Detected !", "Code Blue", "BLUE", 1);
            } else if (header.indexOf("GET /ALARM") >= 0) {
              Serial.println("Alarm detected");
              printLcdBacklight("Alarm Detected !", "Code Red !", "RED", 1);
            } else if (header.indexOf("GET /ALLGOOD") >= 0) {
              Serial.println("We're all good");
              printLcdBacklight("We're all good !", "", "GREEN", 0);
            } else if (header.indexOf("GET /SCREENON") >= 0) {
              Serial.println("Low light");
              printLcdBacklight(" ", " ", "WHITE", 0);
            } else if (header.indexOf("GET /SCREENOFF") >= 0) {
              Serial.println("Screen off");
              printLcdBacklight(" ", " ", "BLACK", 0);
            }
            
            // Display the HTML web page
            client.println("<!DOCTYPE html><html>");
            client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
            client.println("<link rel=\"icon\" href=\"data:,\">");
            // CSS to style the on/off buttons 
            // Feel free to change the background-color and font-size attributes to fit your preferences
            client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
            client.println(".button { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
            client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
            client.println(".button2 {background-color: #77878A;}</style></head>");
            
            // Web Page Heading
            client.println("<body><h1>ESP8266 Web Server</h1>");
            
//            // Display current state, and ON/OFF buttons for GPIO 5  
//            client.println("<p>GPIO 5 - State " + output5State + "</p>");
//            // If the output5State is off, it displays the ON button       
//            if (output5State=="off") {
//              client.println("<p><a href=\"/5/on\"><button class=\"button\">ON</button></a></p>");
//            } else {
//              client.println("<p><a href=\"/5/off\"><button class=\"button button2\">OFF</button></a></p>");
//            } 
//               
//            // Display current state, and ON/OFF buttons for GPIO 4  
//            client.println("<p>GPIO 4 - State " + output4State + "</p>");
//            // If the output4State is off, it displays the ON button       
//            if (output4State=="off") {
//              client.println("<p><a href=\"/4/on\"><button class=\"button\">ON</button></a></p>");
//            } else {
//              client.println("<p><a href=\"/4/off\"><button class=\"button button2\">OFF</button></a></p>");
//            }
//            client.println("</body></html>");
            
            // 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
        }
      }
    }
    // Clear the header variable
    header = "";
    // Close the connection
    client.stop();
    Serial.println("Client disconnected.");
    Serial.println("");
  }


  
  //Send an HTTP POST request every 10 minutes
  if ((millis() - lastTime) > timerDelay) {
    //Check WiFi connection status
    if(WiFi.status()== WL_CONNECTED){
      WiFiClient client2;
      HTTPClient http;


      String webPage;

      
      StaticJsonBuffer<1000> jsonBuffer;
      
  
      // Build your own object tree in memory to store the data you want to send in the request
      JsonObject& root = jsonBuffer.createObject();
      root["sensor"] = "Temperature";
      float temp = get_temperature();
      root["Temp"] = temp; //Put Sensor value
      
      JsonObject& data = root.createNestedObject("data");
      data.set("temperature", temp);   //METTRE EN FLOAT PAS EN CHIFFRE COMME CA ou bien convertir sur Nodered comme jai fait avec les nodes fonctions
      
      // Generate the JSON string
      root.printTo(Serial);
      root.printTo(webPage);
      
      
      
      // Your Domain name with URL path or IP address with path
      http.begin(client2, serverName);

      // Specify content-type header
      //http.addHeader("Content-Type", "application/x-www-form-urlencoded");
      // Data to send with HTTP POST
      //String httpRequestData = "api_key=tPmAT5Ab3j7F9&sensor=BME280&value1=24.25&value2=49.54&value3=1005.14";           
      // Send HTTP POST request
      //int httpResponseCode = http.POST(httpRequestData);
      
      // If you need an HTTP request with a content type: application/json, use the following:
      http.addHeader("Content-Type", "application/json");
      int httpResponseCode = http.POST(webPage);
      //root.printTo(http);
      // If you need an HTTP request with a content type: text/plain
      //http.addHeader("Content-Type", "text/plain");
      //int httpResponseCode = http.POST("Hello, World!");
     
      Serial.print("HTTP Response code: ");
      Serial.println(httpResponseCode);
        
      // Free resources
      http.end();
    }
    else {
      Serial.println("WiFi Disconnected");
    }
    lastTime = millis();
  }
}

/*
  
  Code compatible with ESP8266 Boards Version 3.0.0 or above 
  (see in Tools > Boards > Boards Manager > ESP8266)
*/

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>
#include <ArduinoJson.h>

//fan
#define ON 1
#define OFF 0

String header;
WiFiServer server(80);

const char* ssid = "ENTER-YOUR-WIFI-SSID";     // Configure here the SSID of your WiFi Network
const char* password =  "ENTER-YOUR-WIFI-PASSWORD"; // Configure here the PassWord of your WiFi Network


//Your Domain name with URL path or IP address with path
const char* serverName = "http://172.20.10.2:1880/temperature";

// the following variables are unsigned longs because the time, measured in
// milliseconds, will quickly become a bigger number than can be stored in an int.
unsigned long lastTime = 0;
// Timer set to 10 minutes (600000)
//unsigned long timerDelay = 600000;
// Set timer to 5 seconds (5000)
unsigned long timerDelay = 5000;

// Current time
unsigned long currentTime = millis();
// Previous time
unsigned long previousTime = 0; 
// Define timeout time in milliseconds (example: 2000ms = 2s)
const long timeoutTime = 2000;


// Auxiliar variables to store the current output state
String output5State = "off";
String output4State = "off";

// Assign output variables to GPIO pins
const int output5 = 5;
const int output4 = 4;



  void switch_fan(int state) { //1 turn on fan //0 turn off fan
  if (state == 1) {
    analogWrite(A0, 180);
  } else {
    analogWrite(A0, 0);
  }
}


void setup() {
  Serial.begin(115200);


  // Initialize the output variables as outputs
  pinMode(output5, OUTPUT);
  pinMode(output4, OUTPUT);
  // Set outputs to LOW
  digitalWrite(output5, LOW);
  digitalWrite(output4, LOW);

  //Fan
  pinMode(A0, OUTPUT);
  

  WiFi.begin(ssid, password);
  Serial.println("Connecting");
  while(WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to WiFi network with IP Address: ");
  Serial.println(WiFi.localIP());
 
  Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading.");

  server.begin();

}

void loop() {

  WiFiClient client = server.available();   // Listen for incoming clients

  if (client) {                             // If a new client connects,
    Serial.println("New Client.");          // print a message out in the serial port
    String currentLine = "";                // make a String to hold incoming data from the client
    currentTime = millis();
    previousTime = currentTime;
    while (client.connected() && currentTime - previousTime <= timeoutTime) { // loop while the client's connected
      currentTime = millis();         
      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
        header += c;
        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("Connection: close");
            client.println();
            
            // turns the GPIOs on and off
            if (header.indexOf("GET /CHAUD") >= 0) {
              Serial.println("ventilo on !!!");
              switch_fan(ON);
            } else if (header.indexOf("GET /FROID") >= 0) {
              Serial.println("ventilo of !!!");
              switch_fan(OFF);
              digitalWrite(output5, LOW);
            } 
            
            // Display the HTML web page
            client.println("<!DOCTYPE html><html>");
            client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
            client.println("<link rel=\"icon\" href=\"data:,\">");
            // CSS to style the on/off buttons 
            // Feel free to change the background-color and font-size attributes to fit your preferences
            client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
            client.println(".button { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
            client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
            client.println(".button2 {background-color: #77878A;}</style></head>");
            
            // Web Page Heading
            client.println("<body><h1>ESP8266 Web Server</h1>");
            
            // Display current state, and ON/OFF buttons for GPIO 5  
            client.println("<p>GPIO 5 - State " + output5State + "</p>");
            // If the output5State is off, it displays the ON button       
            if (output5State=="off") {
              client.println("<p><a href=\"/5/on\"><button class=\"button\">ON</button></a></p>");
            } else {
              client.println("<p><a href=\"/5/off\"><button class=\"button button2\">OFF</button></a></p>");
            } 
               
            // Display current state, and ON/OFF buttons for GPIO 4  
            client.println("<p>GPIO 4 - State " + output4State + "</p>");
            // If the output4State is off, it displays the ON button       
            if (output4State=="off") {
              client.println("<p><a href=\"/4/on\"><button class=\"button\">ON</button></a></p>");
            } else {
              client.println("<p><a href=\"/4/off\"><button class=\"button button2\">OFF</button></a></p>");
            }
            client.println("</body></html>");
            
            // 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
        }
      }
    }
    // Clear the header variable
    header = "";
    // Close the connection
    client.stop();
    Serial.println("Client disconnected.");
    Serial.println("");
  }

}