"Temperature Control" rev_11

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    - Project: "Temperature Control"
    - Source Code NOT compiled for: ESP32 DevKit V1
    - Source Code created on: 2025-01-21 15:49:47

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* The thermostat turns the heater on and off to */
    /* maintain a temperature of 21 degrees for 100 */
    /* seconds. Use FreeRTOS */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <DS18B20.h>    // https://github.com/matmunk/DS18B20
#include <OneWire.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void heaterTask(void *pvParameters);
void temperatureTask(void *pvParameters);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t Temp_Sensor_DS18B20_DQ_PIN_D4 = 4;

/***** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
OneWire oneWire(Temp_Sensor_DS18B20_DQ_PIN_D4);
DS18B20 sensor(&oneWire);

/***** TARGET TEMPERATURE *****/
const float TARGET_TEMPERATURE = 21.0;
const int HEATER_ON_TIME = 10000; // Heater on time in milliseconds

void setup(void)
{
    // Initialize serial communication
    Serial.begin(115200);
    Serial.println("Thermostat System Starting...");

    // Initialize the temperature sensor
    sensor.begin();

    // Create FreeRTOS tasks
    xTaskCreate(heaterTask, "Heater Task", 2048, NULL, 1, NULL);
    xTaskCreate(temperatureTask, "Temperature Task", 2048, NULL, 1, NULL);
}

void loop(void)
{
    // Empty loop as tasks are handled by FreeRTOS
}

void heaterTask(void *pvParameters)
{
    while (true)
    {
        // Request temperature from the sensor
        sensor.requestTemperatures();
        float currentTemperature = sensor.getTempC();

        // Check if the current temperature is below the target
        if (currentTemperature < TARGET_TEMPERATURE)
        {
            Serial.println("Heater ON");
            // Simulate heater ON
            vTaskDelay(HEATER_ON_TIME / portTICK_PERIOD_MS);
            Serial.println("Heater OFF");
        }
        else
        {
            Serial.println("Temperature is sufficient, Heater OFF");
        }

        // Delay before the next temperature check
        vTaskDelay(1000 / portTICK_PERIOD_MS); // Check every second
    }
}

void temperatureTask(void *pvParameters)
{
    while (true)
    {
        // Request temperature from the sensor
        sensor.requestTemperatures();
        float currentTemperature = sensor.getTempC();
        Serial.print("Current Temperature: ");
        Serial.println(currentTemperature);

        // Delay before the next temperature read
        vTaskDelay(2000 / portTICK_PERIOD_MS); // Read every 2 seconds
    }
}

/* END CODE */