Arduino-ESP comunication for Sensorflare upload

Arduino-ESP/ArduinoTX/ArduinoTX.ino

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+/*
+ *  Arduino with THO2(Temperature/Humidity) and VOC sensors.
+ *
+ *  This example show how to send the Name and Value of each Sensor
+ *  to ESP module through Serial Port.
+ *
+ *  Created by Lidia Pocero.
+ */
+
+//Libraries for I2C comunication with the THO
+#include <Wire.h>
+#include <TH02_dev.h>
+
+//Estructure for each Sensor
+struct Sensor {
+  String Name;
+  float Value;
+};
+
+//Definde your Sensor number
+const int VarNumber = 3;
+
+//Array of Sensors
+Sensor MySensors[VarNumber];
+
+void setup()
+{
+  Wire.begin();
+
+  //Digital Sensors
+  /* Power up,delay 150ms,until voltage is stable */
+  delay(150);
+  /* Reset HP20x_dev */
+  TH02.begin();
+
+  delay(150);
+}
+
+void loop()
+{
+  //TH02 sensor
+
+  //Temperature value
+  float t = TH02.ReadTemperature();
+  //Sensor name: The name of the sensor on Sensorflare
+  MySensors[0].Name = "mydev1/temperature";
+  //Sensor value
+  MySensors[0].Value = t;
+
+  delay(150);
+
+  //Humidity value
+  float h = TH02.ReadHumidity();
+  //Sensor name: The name of the sensor on Sensorflare
+  MySensors[1].Name = "mydev1/humidity";
+  //Sensor value
+  MySensors[1].Value = h;
+  delay(150);
+
+  //VOC sensor
+
+  int gas = analogRead(A2);
+  float voc = gas * 4.9;
+  //Sensor name: The name of the sensor on Sensorflare
+  MySensors[2].Name = "mydev1/voc";
+  //Sensor value
+  MySensors[2].Value = voc;
+
+  //Send all the Sensor Values to ESP
+  SendToESP();
+
+
+}
+//Funcion that send the variable names and the variable values to the ESP
+void SendToESP()
+{
+  int i = 0;
+  char Val[10];
+  Serial.begin(9600);
+  while (i < VarNumber)
+  {
+    dtostrf(MySensors[i].Value, 4, 2, Val);
+    Serial.print(MySensors[i].Name);
+    Serial.print(":");
+    Serial.println(Val);
+    i++;
+  }
+  Serial.end();
+  //Later of each send to ESP wait half minets before to go back
+  delay(30000);
+
+}
+

Arduino-ESP/espRX/espRX.ino

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+/*
+ *  ESP board Arduino program to receive through Serial Port the sensor names
+ *  and values to be uploaded on Sensorflare
+ *
+ *  Created by Lidia Pocero.
+ */
+
+//Include the 2 necessary library for HTTPS Wifi comunication
+#include <ESP8266WiFi.h>
+#include <WiFiClientSecure.h>
+
+//Your Sensorflare acreditation (username:password) on base64
+#define CredBase64 "**************************************"
+
+// Unser name and password of you WiFi conection
+const char* ssid = "********";
+const char* password = "***********";
+
+
+void setup()
+{
+  //The serial port will comunicate with th Arduino Module
+  Serial.begin(9600);
+
+   //Connect the device to the WiFi 
+  Serial.println(ssid);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println("");
+  Serial.println("WiFi connected");
+  Serial.println("IP address: ");
+  Serial.println(WiFi.localIP());
+  delay (1000);
+}
+
+void loop()
+{
+  //Serial Comunication with the Arduino to take the sensor values to upload it 
+  int incoming = Serial.available();
+
+  if (incoming > 0)
+  {
+
+     //Necessary variables
+      int indexL,indexH;
+      String element,value;
+      float val;
+      String variable=Serial.readString();
+      int len=variable.length();
+
+      Serial.println(variable);
+      int in=0; 
+      if (variable!=0)
+      {
+        Serial.println("NEW MESSEGE");
+        do{
+           Serial.print("NEW VARIABLE:");
+
+           indexL=variable.indexOf(':',in);
+           element=variable.substring(in,indexL);
+           indexH=variable.indexOf('\n',indexL);       
+           value=variable.substring(indexL+1,indexH);
+           val=value.toFloat(); 
+
+
+           Serial.print(element);
+           Serial.print(":");
+           Serial.println(val);
+
+           //Upload on Sensorflare each receive Sensor value
+           SendToSensorFlare(val,element);
+           in=indexH+1; 
+        }while(in<len);
+     }
+  }
+
+}
+
+//Fucntion to Upload a sensor value on Sensorflare
+void SendToSensorFlare(float var,String SensorName)
+{
+
+    String url="/api/resource/"+SensorName+"?value=";
+
+      //Sensorflare host
+    const char* host = "www.sensorflare.com";
+    const int httpsPort = 443;
+
+    WiFiClientSecure client;
+    //Connect to the server
+    Serial.print("connecting to ");
+    Serial.println(host);
+    if (!client.connect(host, httpsPort)) {
+        Serial.println("connection failed");
+        return;
+      }
+
+
+    //Connect to the server   
+      Serial.print("requesting URL: ");
+      Serial.println(url);
+          // This will send the POST to the server
+      client.print("POST ");
+      client.print( url );
+      client.print(var,2);
+      client.println(" HTTP/1.0");
+      client.print("Host: ");
+      client.println(host);
+      client.print("Authorization: Basic ");
+      client.println(CredBase64);
+      client.println("User-Agent: espagent");
+      client.println();
+
+      delay(500);
+      Serial.println("request sent");
+      while (client.connected()) {
+        String line = client.readStringUntil('\n');
+        if (line == "\r") {
+          Serial.println("headers received");
+          break;
+        }
+      }
+      String line = client.readStringUntil('\n');
+      Serial.println("reply was:");
+      Serial.println("==========");
+      Serial.println(line);
+      Serial.println("==========");
+      Serial.println("closing connection");
+      client.stop();
+      Serial.println("Client close");
+      delay(500);
+} 
+