int potPin = A0;  //slide potentiometer on pin A0
int potVal = 0; //slide potentiometer value
int edemaVal;

void setup() {
  pinMode(potPin, INPUT);
  Serial.begin(9600);

}

void loop() {
  potVal = analogRead(potPin);
  edemaVal = map(potVal, 0, 1023, 1, 15); //mapping to 15mm

  Serial.print("Potentiometer Value: ");
  Serial.println(potVal);
  delay(1000);

  Serial.print("Displacement Value: ");
  Serial.println(edemaVal);
  delay(1000);
}