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	- Project: Temperature Control
	- Source Code compiled for: Arduino Uno
	- Source Code created on: 2024-04-19 17:50:09

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* Measure temperature using DS18B20 sensor every */
	/* 10s. Display temperature. If temp > 37°C, turn off */
	/* heater. If temp <= 37°C, turn on heater. */
/****** END SYSTEM REQUIREMENTS *****/


/********* User code review feedback **********
#### Feedback 1 ####
- i need the temperature to be displayed on the serial monitor
********* User code review feedback **********/

/****** DEFINITION OF LIBRARIES *****/
#include <OneWire.h>
#include <DallasTemperature.h>

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void updateOutputs(void);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t Temp_sensor_DS18B20_DQ_PIN_D3 = 3;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t Heater_LED_PIN_D2 = 2;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
bool Heater_LED_PIN_D2_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
float Heater_LED_PIN_D2_phyData = 0.0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
OneWire oneWire(Temp_sensor_DS18B20_DQ_PIN_D3);
DallasTemperature sensors(&oneWire);

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

  // Configure input and output pins
  pinMode(Temp_sensor_DS18B20_DQ_PIN_D3, INPUT);
  pinMode(Heater_LED_PIN_D2, OUTPUT);

  // Initialize DS18B20 sensor
  sensors.begin();
  sensors.setResolution(12);
}

void loop(void)
{
  // Read temperature from DS18B20 sensor
  sensors.requestTemperatures(); 
  float temperature = sensors.getTempCByIndex(0);

  // Display temperature on the serial monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println("°C");

  // Update Heater LED based on temperature
  if (temperature > 37) {
    Heater_LED_PIN_D2_rawData = LOW; // Turn off heater
  } else {
    Heater_LED_PIN_D2_rawData = HIGH; // Turn on heater
  }

  updateOutputs(); // Refresh output data

  delay(10000); // Delay for 10 seconds
}

void updateOutputs(void)
{
  digitalWrite(Heater_LED_PIN_D2, Heater_LED_PIN_D2_rawData);
}