int potPin = A0;      // analog input pin for the potentiometer
int angleMin = 0;     // minimum angle (in degrees)
int angleMax = 30;    // maximum angle (in degrees)
int vMin = 512;       // voltage output of the potentiometer at minimum angle
int vMax = 600;       // voltage output of the potentiometer at maximum angle

void setup() {
  Serial.begin(9600); // initialize serial communication
  pinMode(potPin, OUTPUT);
}

void loop() {
  // read the voltage output of the potentiometer
  int vPot = analogRead(potPin);

  // calculate the corresponding angle using the calibration formula
  float angle = (vPot - vMin) * (angleMax - angleMin) / (vMax - vMin) + angleMin;

  // print the angle to the serial monitor
  Serial.print("Angle: ");
  Serial.print(angle);
  Serial.print(" degrees");
  Serial.print("    Voltage  ");
  Serial.println(vPot);

  delay(100);  // wait for a short time before reading the potentiometer again
}

// IMPORTANT MAX ANGLE = 25-45 EACH WAY