void frequencySweepRaw() {
  // Create variables to hold the impedance data and track frequency
  int real, imag, i = 0, cfreq = VALUE_fstart / 1000;

  // Initialize the frequency sweep
  if (!(AD5933::setPowerMode(POWER_STANDBY) &&           // place in standby
        AD5933::setControlMode(CTRL_INIT_START_FREQ) &&  // init start freq
        AD5933::setControlMode(CTRL_START_FREQ_SWEEP)))  // begin frequency sweep
  {
    Serial.println("Could not initialize frequency sweep...");
  }

  // Perform the actual sweep
  while ((AD5933::readStatusRegister() & STATUS_SWEEP_DONE) != STATUS_SWEEP_DONE) {
    // Get the frequency data for this frequency point
    if (!AD5933::getComplexData(&real, &imag)) {
      Serial.println("Could not get raw frequency data...");
    }

    Serial.print(String(real) + " real");
    Serial.print(String(imag) + " imag");
    // Compute impedance
    double magnitude = sqrt(pow(real, 2) + pow(imag, 2));
    double impedance = 1 / (magnitude * gain[i]);

    //Serial.print("  |Z|=");
    Serial.print(String(impedance) + " impedance");

    // Increment the frequency
    i++;
    cfreq += VALUE_finc / 1000;
    AD5933::setControlMode(CTRL_INCREMENT_FREQ);
  }

  Serial.println("Frequency sweep complete!");

  // Set AD5933 power mode to standby when finished
  if (!AD5933::setPowerMode(POWER_STANDBY))
    Serial.println("Could not set to standby...");
}