IOT based Power and Energy meter

#define BLYNK_PRINT Serial


#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <SoftwareSerial.h>
#include <SimpleTimer.h>

char auth[] = "nSC5994bDxGyYpYM4ds3sFeKoDSHBdKz";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "ABID";
char pass[] = "8901234567";

SimpleTimer timer;

String myString; // complete message from arduino, which consistors of snesors data
char rdata; // received charactors

float firstVal, secondVal,thirdVal,forthVal; // 
// This function sends Arduino's up time every second to Virtual Pin (1).
// In the app, Widget's reading frequency should be set to PUSH. This means
// that you define how often to send data to Blynk App.
void myTimerEvent()
{
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V1, millis() / 1000);
  
}



void setup()
{
  // Debug console
  Serial.begin(9600);

  Blynk.begin(auth, ssid, pass);

    timer.setInterval(1000L,sensorvalue1); 
     timer.setInterval(1000L,sensorvalue2); 
     timer.setInterval(1000L,sensorvalue3);
      timer.setInterval(1000L,sensorvalue4);
}

void loop()
{
   if (Serial.available() == 0 ) 
   {
  Blynk.run();
  timer.run(); // Initiates BlynkTimer
   }
   
  if (Serial.available() > 0 ) 
  {
    rdata = Serial.read(); 
    myString = myString+ rdata; 
   // Serial.print(rdata);
    if( rdata == '\n')
    {
String l = getValue(myString, ',', 0);
String m = getValue(myString, ',', 1);
String n = getValue(myString, ',', 2); 
String o = getValue(myString, ',', 3); 

firstVal = l.toFloat();
secondVal = m.toFloat();
thirdVal = n.toFloat();
forthVal = o.toFloat();

  myString = "";
// end new code
    }
  }

}

void sensorvalue1()
{
float sdata = firstVal;
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V2, sdata);

}
void sensorvalue2()
{
float sdata = secondVal;
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V3, sdata);

}

void sensorvalue3()
{
float sdata = thirdVal;
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V4, sdata);

}
void sensorvalue4()
{
float sdata = forthVal;
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V5, sdata);

}

String getValue(String data, char separator, int index)
{
    int found = 0;
    int strIndex[] = { 0, -1 };
    int maxIndex = data.length() - 1;

    for (int i = 0; i <= maxIndex && found <= index; i++) {
        if (data.charAt(i) == separator || i == maxIndex) {
            found++;
            strIndex[0] = strIndex[1] + 1;
            strIndex[1] = (i == maxIndex) ? i+1 : i;
        }
    }
    return found > index ? data.substring(strIndex[0], strIndex[1]) : "";
}