uint16_t accumulateEnergy = 0;
uint32_t finalEnergyValue = 0;

float voltage = 0;
float current = 0;
float power_factor = 0;
uint16_t realPower = 0;

void setup() {

  Serial.begin(9600);

  finalEnergyValue = 1023999500; // Start with 1023.9995 to count beyond 1024
}

void loop() {

  voltage = 237.0;
  current = 0.5;
  power_factor = 1.0;

  realPower = voltage * current * power_factor * 100;

  accumulateEnergy = realPower / 36;
  finalEnergyValue += accumulateEnergy;
  Serial.println(realPower);
  Serial.println(accumulateEnergy);
  Serial.println(finalEnergyValue);
  Serial.println(finalEnergyValue / 1000000.0, 4);
  
  delay(200);//Speed up a bit
}

/*
//char outPut[12];
//sprintf(outPut,"%lu.%04lu", finalEnergyValue / 10000, finalEnergyValue % 10000);
  //Serial.println(outPut);

  float accumulateEnergy = 0;
float finalEnergyValue = 0;

float voltage = 0;
float current = 0;
float power_factor = 0;
float realPower = 0;

void setup() {

  Serial.begin(9600);

  finalEnergyValue = 1023999.50; // Start with 1023.9995 to count beyond 1024
}

void loop() {

  voltage = 237.0;
  current = 0.5;
  power_factor = 1.0;

  realPower = voltage * current * power_factor;

  accumulateEnergy = realPower / 360;
  finalEnergyValue += accumulateEnergy;
  Serial.println(realPower,3);
  Serial.println(accumulateEnergy,3);
  Serial.println(finalEnergyValue,3);
  Serial.println(finalEnergyValue / 1000.0, 5);
  
  delay(200);//Speed up a bit
}
*/