const int potPin = A0; // Analog pin connected to potentiometer

// Resistance-temperature data points
const float resistance[] = {47.0, 667.0}; // Resistance values in ohms
const float temperature[] = {320.0, 140.0}; // Corresponding temperature values in Fahrenheit

void setup() {
  Serial.begin(9600); // Initialize serial communication
}

void loop() {
  int sensorValue = analogRead(potPin); // Read analog input
  float voltage = sensorValue * (5.0 / 1023.0); // Convert analog reading to voltage
  float resistanceValue = (500 * voltage) / (5 - voltage); // Calculate resistance value (assuming a 5kΩ potentiometer)
  
  float tempF = mapResistanceToTemperature(resistanceValue);
  int angle1 = map(tempF, 140, 320, 0, 180);;
  
  Serial.print("Analog Value: ");
  Serial.print(sensorValue);
  Serial.print(", Voltage: ");
  Serial.print(voltage);
  Serial.print("V, Resistance: ");
  Serial.print(resistanceValue);
  Serial.print("Ω, Temperature: ");
  Serial.print(tempF);
  Serial.print("°F  ");
  Serial.println(angle1);
  
  delay(500); // Delay for stability
}

float mapResistanceToTemperature(float resistanceValue) {
  // Linear interpolation to map resistance to temperature
  if (resistanceValue <= resistance[0]) {
    return temperature[0];
  } else if (resistanceValue >= resistance[1]) {
    return temperature[1];
  } else {
    // Linear interpolation formula: y = mx + b
    float m = (temperature[1] - temperature[0]) / (resistance[1] - resistance[0]);
    float b = temperature[0] - m * resistance[0];
    return m * resistanceValue + b;
  }
}