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	- Project: "Digital Control"
	- Source Code compiled for: Arduino Nano
	- Source Code created on: 2024-02-04 14:53:56

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* On LCD1602_LCD1602I2C_I2C display   on the first */
	/* line: CZERWONY "+resultC"  on the second line: */
	/* ZOLTY "+resultZ"  the initial value of resultC and */
	/* resultZ is 10000. */
/****** SYSTEM REQUIREMENT 2 *****/
	/* Holding down the czerwonyP_PushButton subtracts */
	/* from the resultC.  Holding down the */
	/* zielonyP_PushButton subtracts from the resultZ. */
	/* Holding time subtracts value:  1 second subtracts */
	/* randomly 10 to 40, until the button is released. */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include 
#include     //https://github.com/evert-arias/EasyButton
#include     //https://github.com/marcoschwartz/LiquidCrystal_I2C

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t PUSHBUTTON_PIN_D2 = 2;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t L1_LED_PIN_D3 = 3;
const uint8_t B_ACTIVEBUZZER_OUTPUT_PIN_D4 = 4;

/***** DEFINITION OF I2C PINS *****/
const uint8_t LCD_I2C_PIN_SDA_A4 = A4;
const uint8_t LCD_I2C_PIN_SCL_A5 = A5;
const uint8_t LCD_I2C_SLAVE_ADDRESS = 0x27;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool L1_LED_PIN_D3_rawData = false;
bool B_ACTIVEBUZZER_OUTPUT_PIN_D4_rawData = false;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
int resultC = 10000;
int resultZ = 10000;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
EasyButton pushButton(PUSHBUTTON_PIN_D2);
LiquidCrystal_I2C lcd(LCD_I2C_SLAVE_ADDRESS, 20, 4); // Initialize LiquidCrystal_I2C object

void setup()
{
    // put your setup code here, to run once:
    lcd.begin(20, 4); // Initialize the LCD
    lcd.backlight();

    pinMode(PUSHBUTTON_PIN_D2, INPUT_PULLUP);
    pinMode(L1_LED_PIN_D3, OUTPUT);
    pinMode(B_ACTIVEBUZZER_OUTPUT_PIN_D4, OUTPUT);

    pushButton.begin();
    pushButton.onPressedFor(2000, onPressedForDuration);
}

void loop()
{
    // put your main code here, to run repeatedly:
    pushButton.read();
    updateOutputs(); // Refresh output data

    // Display values on LCD
    lcd.setCursor(0, 0);
    lcd.print("CZERWONY ");
    lcd.print(resultC);

    lcd.setCursor(0, 1);
    lcd.print("ZOLTY ");
    lcd.print(resultZ);
}

void updateOutputs()
{
    digitalWrite(L1_LED_PIN_D3, L1_LED_PIN_D3_rawData);
    digitalWrite(B_ACTIVEBUZZER_OUTPUT_PIN_D4, B_ACTIVEBUZZER_OUTPUT_PIN_D4_rawData);
}

void onPressedForDuration()
{
    // Subtract from resultC
    while (pushButton.isPressed())
    {
        resultC--;
        delay(random(1000, 4000)); // Random delay between 1 and 4 seconds
    }

    // Subtract from resultZ
    while (pushButton.isReleased())
    {
        resultZ--;
        delay(random(1000, 4000)); // Random delay between 1 and 4 seconds
    }
}