**Time Display** rev_01

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    - Project: **Time Display**
    - Source Code NOT compiled for: Arduino Uno
    - Source Code created on: 2024-12-09 11:04:14

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* print a clock on display. */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <SPI.h>
#include <ILI9488.h>    //https://github.com/jaretburkett/ILI9488
#include <U8g2_for_Adafruit_GFX.h>  //https://github.com/olikraus/U8g2_for_Adafruit_GFX

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

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t display_ILI9488_TFT_RST_PIN_D2        = 2;
const uint8_t display_ILI9488_TFT_DC_PIN_D3     = 3;

/***** DEFINITION OF SPI PINS *****/
const uint8_t display_ILI9488_TFT_SPI_PIN_MOSI_D11      = 11;
const uint8_t display_ILI9488_TFT_SPI_PIN_MISO_D12      = 12;
const uint8_t display_ILI9488_TFT_SPI_PIN_SCLK_D13      = 13;
const uint8_t display_ILI9488_TFT_SPI_PIN_CS_D10        = 10;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
bool    display_ILI9488_TFT_RST_PIN_D2_rawData      = 0;
bool    display_ILI9488_TFT_DC_PIN_D3_rawData       = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
float   display_ILI9488_TFT_RST_PIN_D2_phyData      = 0.0;
float   display_ILI9488_TFT_DC_PIN_D3_phyData       = 0.0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
// Create an instance of the display
ILI9488 display(display_ILI9488_TFT_SPI_PIN_CS_D10, display_ILI9488_TFT_SPI_PIN_DC_D3, display_ILI9488_TFT_SPI_PIN_RST_D2);
U8G2_FOR_ADAFRUIT_GFX u8g2;

void setup(void)
{
    // put your setup code here, to run once:

    pinMode(display_ILI9488_TFT_RST_PIN_D2,  OUTPUT);
    pinMode(display_ILI9488_TFT_DC_PIN_D3,   OUTPUT);
    pinMode(display_ILI9488_TFT_SPI_PIN_CS_D10,  OUTPUT);

    // start the SPI library:
    SPI.begin();

    // Initialize the display
    display.begin();
    u8g2.begin(display);
    u8g2.setFont(u8g2_font_ncenB08_tr); // Set a font for the display
}

void loop(void)
{
    // put your main code here, to run repeatedly:
    updateOutputs(); // Refresh output data
    displayClock();   // Display the clock
}

void updateOutputs()
{
    digitalWrite(display_ILI9488_TFT_RST_PIN_D2, display_ILI9488_TFT_RST_PIN_D2_rawData);
    digitalWrite(display_ILI9488_TFT_DC_PIN_D3, display_ILI9488_TFT_DC_PIN_D3_rawData);
}

void displayClock()
{
    // Get current time
    unsigned long currentMillis = millis();
    int seconds = (currentMillis / 1000) % 60;
    int minutes = (currentMillis / (1000 * 60)) % 60;
    int hours = (currentMillis / (1000 * 60 * 60)) % 24;

    // Clear the display
    u8g2.clearBuffer();

    // Print the time on the display
    u8g2.setCursor(0, 10); // Set cursor position
    u8g2.print("Time: ");
    u8g2.print(hours);
    u8g2.print(":");
    if (minutes < 10) u8g2.print("0"); // Leading zero for minutes
    u8g2.print(minutes);
    u8g2.print(":");
    if (seconds < 10) u8g2.print("0"); // Leading zero for seconds
    u8g2.print(seconds);

    // Send the buffer to the display
    u8g2.sendBuffer();
}

/* END CODE */