 
 SI7021 sensor;
 Adafruit_BMP085 bmp;
+StaticJsonBuffer<200> jsonBuffer;
+
 
 void setup() {
 

    Serial.println(" ppm");
  }

  Serial.println();
}

  Serial.print("Temp: "); Serial.print(t);
  Serial.print("\tHum: "); Serial.println(RH);

  int32_t p = bmp.readPressure();
  double P = p / 100.0;
  double bmpTemp = bmp.readTemperature();
  Serial.print("Temp: "); Serial.print(bmpTemp); // Celsius
  Serial.print("\tPressure: "); Serial.println(P); // Gecto Pascals

  int humudutyTempWeight = 1;
  int pressureTempWeight = 1;
  double temperature = (t * humudutyTempWeight + bmpTemp * pressureTempWeight) / (humudutyTempWeight + pressureTempWeight);

  double V = 1.0;
  double Rv = 461.5;

  double T = 273.15 + temperature;
  double e_omega_t = 6.112*exp((17.62*T - 4812.903)/(T - 30.03));
  double f = 1.0016 + 0.00000315*P - 0.074/P;
  double e_omega = e_omega_t*f;
