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uint16_t GP2YDustSensor::readDustRawOnce(uint16_t waitMicroSecs)
{
    // Turn on the dust sensor LED by setting digital pin LOW.
    digitalWrite(this->ledOutputPin, LOW);

    // Wait 0.28ms before taking a reading of the output voltage as per spec.
    delayMicroseconds(waitMicroSecs);

    // Record the output voltage. This operation takes around 100 microseconds.
    uint16_t VoRaw = analogRead(this->analogReadPin);

    // Turn the dust sensor LED off by setting digital pin HIGH.
    digitalWrite(this->ledOutputPin, HIGH);

    return VoRaw;
}

    float scaledVoltage = avgRaw * (5.0 / 1024) * calibrationFactor;