#define TEMPERATURE_PIN 34
#define THERMISTOR_PIN 32 // Changed to GPIO32
#define OIL_SENSOR_PIN 33 // The GPIO pin where the potentiometer wiper is connected
#define OIL_QUALITY_PIN 35 // Pin connected to the potentiometer wiper

const float B = 3950; // Beta parameter
const float referenceResistor = 10000; // Reference resistance (10kΩ)
const float referenceTemperature = 298.15;

void setup() {
  Serial.begin(115200);
  analogReadResolution(12);  // Set the ADC resolution to 12 bits for voltage reading
}

void loop() {
  int sensor1Value = analogRead(OIL_QUALITY_PIN); // Read the potentiometer
  float qualityPercentage = (float)sensor1Value / 4095.0 * 100.0; // Map to a percentage

  Serial.print("Oil Quality: ");
  if (qualityPercentage >= 75) {
    Serial.println("Good");
  } else if (qualityPercentage >= 50) {
    Serial.println("Moderate");
  } else if (qualityPercentage >= 25) {
    Serial.println("Poor");
  } else {
    Serial.println("Replace Oil");
  }



  int sensorValue = analogRead(OIL_SENSOR_PIN); // Read the value from the potentiometer
  // Convert the sensor reading to a voltage
  float voltage = sensorValue * (3.3 / 4095.0);

  // Map the voltage to a pressure value (This is just a simulated mapping)
  float pressure = map(sensorValue, 0, 4095, 0, 100); // Assuming 0-100 PSI for simulation

  Serial.print("Oil Pressure: ");
  Serial.print(pressure);
  Serial.println(" PSI");




  int adc1Value = analogRead(THERMISTOR_PIN); // Read the voltage across the fixed resistor
  float voltage1 = adc1Value * (3.3 / 4095.0); // Convert the ADC value to a voltage

  // Convert the voltage to a resistance value
  float resistance = referenceResistor / ((3.3 / voltage1) - 1.0);

  // Calculate the temperature using the Beta parameter equation
  float temperature = B / (log(resistance / referenceResistor) + B / referenceTemperature) - 273.15; // Convert Kelvin to Celsius

  // Serial.print("Thermistor resistance: ");
  // Serial.print(resistance);
  // Serial.println(" ohms");
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" °C");






  // Reading and printing the voltage from GPIO34
  int adc2Value = analogRead(TEMPERATURE_PIN);  // Read ADC value from GPIO34
  float voltage2 = (adc2Value * 5.0) / 4095.0;  // Convert ADC value to voltage
  Serial.print("Voltage: ");
  Serial.print(voltage2);
  Serial.println(" V");

  delay(1000);  // Delay a second before the next read
}