"Thermostat Control" rev_02

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    - Project: "Thermostat Control"
    - Source Code NOT compiled for: ESP32 DevKit V1
    - Source Code created on: 2025-01-21 14:47:37

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* a thermostat with an offset on and offset off */
    /* logic using Freertos.  The thermostat works */
    /* according to the recipe, which is stored in the */
    /* EEprom memory. The recipe has the name, the step */
    /* number, the step temperature, and the step time in */
    /* minutes. */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

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

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void thermostatTask(void *pvParameters);

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

/***** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
#define ONE_WIRE_BUS 2
OneWire oneWire(ONE_WIRE_BUS);
DS18B20 sensor(&oneWire);

// Recipe structure
struct RecipeStep {
    String name;
    float temperature;
    int time; // in minutes
};

// Example recipe
RecipeStep recipe[] = {
    {"Step 1", 25.0, 10},
    {"Step 2", 30.0, 15},
    {"Step 3", 35.0, 20}
};

// Current step index
int currentStep = 0;

// Offset values
float offsetOn = 0.5;
float offsetOff = 0.5;

void setup(void)
{
    Serial.begin(115200);
    pinMode(Temp_Sensor_DS18B20_DQ_PIN_D4, INPUT);
    sensor.begin();

    // Create FreeRTOS task for thermostat
    xTaskCreate(thermostatTask, "ThermostatTask", 2048, NULL, 1, NULL);
}

void loop(void)
{
    // Main loop can remain empty as the thermostat logic is handled in the FreeRTOS task
}

void thermostatTask(void *pvParameters)
{
    while (true) {
        sensor.requestTemperatures();
        float currentTemp = sensor.getTempC();

        // Check if we need to turn on or off the thermostat
        if (currentStep < sizeof(recipe) / sizeof(recipe[0])) {
            if (currentTemp < (recipe[currentStep].temperature - offsetOn)) {
                // Turn on heating
                Serial.println("Heating ON");
            } else if (currentTemp > (recipe[currentStep].temperature + offsetOff)) {
                // Turn off heating
                Serial.println("Heating OFF");
                currentStep++; // Move to the next step
            }
        } else {
            Serial.println("Recipe completed.");
            vTaskDelete(NULL); // Delete the task if the recipe is completed
        }

        // Delay for a while before the next temperature check
        vTaskDelay(pdMS_TO_TICKS(1000));
    }
}

/* END CODE */