Ex 6

const int sensorPin = A0; // Analog input pin that the sensor is attached to

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

void loop() {
  int sensorValue = analogRead(sensorPin); // Read the ADC value (0-1023)
  
  // Convert the ADC value to voltage
  float voltage = sensorValue * (5.0 / 1023.0); // 5.0 for 5V reference, 1023 for 10-bit ADC
  
  // Convert the voltage to temperature in Celsius
  // TMP36: 500mV offset, 10mV per degree
  float temperatureC = (voltage - 0.5) * 100.0;

  // For LM35: (no need to subtract 0.5)
  // float temperatureC = voltage * 100.0;

  // Print the temperature in Celsius
  Serial.print("Temperature: ");
  Serial.print(temperatureC);
  Serial.println(" °C");

  delay(1000);  // Wait for 1 second before the next reading
}