DF Robot Analog Rotation Sensor V2

/*The DF Robot Analog Rotation Sensor V2 is a potentiometer-based rotary sensor that measures the rotation of a shaft. Here's an example code in Arduino that reads the rotation angle from the sensor:

Note: This code assumes that the DF Robot Analog Rotation Sensor V2 is connected to pin A0 of the Arduino board. If you're using a different pin, you'll need to modify the SENSOR_PIN definition accordingly. Also, the voltage range of the sensor is assumed to be 0.5V to 4.5V, which may vary between sensors. If you need a more accurate measurement, you can calibrate the sensor using a known angle.
*/


const int SENSOR_PIN = A0;  // the pin connected to the sensor
float voltage;  // the voltage reading from the sensor
float angle;  // the angle calculated from the voltage

void setup() {
  Serial.begin(9600);

  pinMode(SENSOR_PIN, INPUT);
}

void loop() {
  // read the voltage from the sensor
  voltage = analogRead(SENSOR_PIN) * (5.0 / 1023.0);

  // calculate the rotation angle in degrees
  angle = (voltage - 0.5) * 300;

  // print the rotation angle
  Serial.print("Angle: ");
  Serial.print(angle);
  Serial.println(" degrees");

  // delay before reading from the sensor again
  delay(1000);
}