/*include <Servo.h>

// Define the analog pin for the NTC thermistor
const int ntcPin = A0;
// Define the pin for the servo motor
const int servoPin = 9;
// Define the target temperature
const float targetTemperature = 25.0; // Set your target temperature here

Servo waterValveServo; // Create a servo object to simulate a valve

void setup() {
  waterValveServo.attach(servoPin); // Attaches the servo on pin 9
  Serial.begin(9600); // Start serial communication for monitoring
}

void loop() {
  int ntcValue = analogRead(ntcPin); // Read the value from the thermistor

  // Assuming a linear relationship just for simulation. Replace with a proper conversion.
  float temperature = map(ntcValue, 0, 1023, 0, 100);

  // Variable to hold the servo position.
  int valvePosition;

  // If the temperature is above the target, map the temperature above the target to the servo's angle range
  if (temperature > targetTemperature) {
    // Here we map each degree above the target temperature to 10 degrees of servo rotation.
    valvePosition = map(temperature, targetTemperature, 100, 0, 180);
  } else {
    // If the temperature is below the target, the valve is closed (servo at 0 degrees).
    valvePosition = 0;
  }
  
  // Constrain the position to make sure it's within the servo's limit
  valvePosition = constrain(valvePosition, 0, 180);
  
  // Move the servo to the position based on temperature
  waterValveServo.write(valvePosition);

  // Output the temperature and servo position to the Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" C, Valve Position: ");
  Serial.println(valvePosition);

  delay(1000); // Wait for a second before reading again
}*/

#include <Servo.h>

// Define the analog pin for the NTC thermistor
const int ntcPin = A0;
// Define the pin for the servo motor
const int servoPin = 9;

// Define the target temperature and range
const float targetTemperature = 25.0; // Set your desired target temperature here
const float proportionalRange = 10.0; // Range for proportional control (±10°C around target)

Servo thermostatServo; // Create a servo object

void setup() {
  thermostatServo.attach(servoPin); // Attach the servo to pin 9
  thermostatServo.write(90);        // Initialize to mid-position (neutral)
  Serial.begin(9600);               // Start serial communication for monitoring
}

void loop() {
  int ntcValue = analogRead(ntcPin); // Read the value from the thermistor

  // Assuming a linear relationship just for simulation. Replace with a proper conversion.
  float temperature = map(ntcValue, 0, 1023, 0, 100);

  // Calculate the difference from the target temperature
  float temperatureDifference = temperature - targetTemperature;

  // Map the temperature difference proportionally to the servo range (0 to 180 degrees)
  // - If temperatureDifference is -proportionalRange, servo = 0
  // - If temperatureDifference is +proportionalRange, servo = 180
  int servoPosition = map(temperatureDifference, -proportionalRange, proportionalRange, 0, 180);

  // Constrain the servo position to be within valid bounds (0 to 180 degrees)
  servoPosition = constrain(servoPosition, 0, 180);

  // Move the servo to the calculated position
  thermostatServo.write(servoPosition);

  // Output the temperature and servo position to the Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" C, Servo Position: ");
  Serial.println(servoPosition);

  delay(1000); // Wait for a second before reading again
}