int fsrPin = 0; // the FSR and 10K pulldown are connected to a0
  int fsrReading; // the analog reading from the FSR resistor divider
  int fsrVoltage; // the analog reading converted to voltage
  unsigned long fsrResistance; // The voltage converted to resistance, can be very big so make "long"
  unsigned long fsrConductance;
  long fsrForce; // Finally, the resistance converted to force

  void setup(void) {
    Serial.begin(9600); // We'll send debugging information via the Serial monitor
  }
  void loop(void) {
    fsrReading = analogRead(fsrPin);
    Serial.print("Analog reading = ");
    Serial.println(fsrReading);

    // analog voltage reading ranges from about 0 to 1023 which maps to 0V to 5V
    fsrVoltage = map(fsrReading, 0, 1023, 0, 5000);
    Serial.print("Voltage reading in mV = ");
    Serial.println(fsrVoltage);
    if (fsrVoltage == 0) {
      Serial.println("No pressure");
    }
    else {
      // The voltage = Vcc * R / (R + FSR) where R = 10K and Vcc = 5V // so FSR = ((Vcc - V) * R) / V yay math!
      fsrResistance = 5000 - fsrVoltage; // fsrVoltage is in millivolts so 5V = 5000mV
      fsrResistance *= 10000; // 10K resistor fsrResistance /= fsrVoltage;
      Serial.print("FSR resistance in ohms = ");
      Serial.println(fsrResistance);
      fsrConductance = 1000000; // we measure in micromhos so
      fsrConductance /= fsrResistance;
      Serial.print("Conductance in microMhos: ");
      Serial.println(fsrConductance); // Use the two FSR guide graphs to approximate the force
      if (fsrConductance <= 1000) {
        fsrForce = fsrConductance / 80;
        Serial.print("Force in Newtons: ");
        Serial.println(fsrForce);
      }
      else {
        fsrForce = fsrConductance - 1000;
        fsrForce /= 30;
        Serial.print("Force in Newtons: ");
        Serial.println(fsrForce);
      }
    }
    Serial.println("--------------------");
    delay(1000);
  }