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	- Project: Reminder System
	- Source Code NOT compiled for: Arduino Nano
	- Source Code created on: 2024-05-18 07:59:42

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* ring buzzer and motor every 1 minute for 5 */
	/* minutes. if push button is pressed while the */
	/* buzzer is active, turn off the countdown for 10 */
	/* minutes, else keep repeating it.     Also display */
	/* "Please Take Your Medicine" while the buzzer is */
	/* active */
/****** SYSTEM REQUIREMENT 2 *****/
	/* ring buzzer and motor every 1 minute for 5 */
	/* minutes. if push button is pressed while the */
	/* buzzer is active, turn off the countdown for 10 */
	/* minutes, else keep repeating it.     Also display */
	/* "Please Take Your Medicine" while the buzzer is */
	/* active */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include 
#include 	//https://github.com/stblassitude/Adafruit_SSD1306_Wemos_OLED.git
#include 	//https://github.com/olikraus/U8g2_for_Adafruit_GFX

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t Reed_PushButton_PIN_D3 = 3;
const uint8_t Reed_PushButton_PIN_D4 = 4;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t Buzzer_PassiveBuzzer_Signal_PIN_D2 = 2;
const uint8_t Vibrator_LED_PIN_D5 = 5;

/***** DEFINITION OF I2C PINS *****/
const uint8_t Screen_SSD1306OledDisplay_I2C_PIN_SDA_A4 = A4;
const uint8_t Screen_SSD1306OledDisplay_I2C_PIN_SCL_A5 = A5;
const uint8_t Screen_SSD1306OledDisplay_I2C_SLAVE_ADDRESS = 60;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
bool Buzzer_PassiveBuzzer_Signal_PIN_D2_rawData = 0;
bool Vibrator_LED_PIN_D5_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
float Buzzer_PassiveBuzzer_Signal_PIN_D2_phyData = 0.0;
float Vibrator_LED_PIN_D5_phyData = 0.0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, Screen_SSD1306OledDisplay_I2C_SLAVE_ADDRESS);

bool pushButtonPressed = false;
unsigned long lastPressTime = 0;
unsigned long buzzerStartTime = 0;
const unsigned long buzzerInterval = 60000; // 1 minute
const unsigned long buzzerDuration = 300000; // 5 minutes
const unsigned long pauseDuration = 600000; // 10 minutes

void setup(void)
{
	// put your setup code here, to run once:
	pinMode(Reed_PushButton_PIN_D3, INPUT_PULLUP);
	pinMode(Reed_PushButton_PIN_D4, INPUT_PULLUP);
	pinMode(Buzzer_PassiveBuzzer_Signal_PIN_D2, OUTPUT);
	pinMode(Vibrator_LED_PIN_D5, OUTPUT);

	display.begin(SSD1306_SWITCHCAPVCC, Screen_SSD1306OledDisplay_I2C_SLAVE_ADDRESS);
	display.display(); // Show initial display buffer contents on the screen
}

void loop(void)
{
	// put your main code here, to run repeatedly:
	updateOutputs(); // Refresh output data
	ringBuzzerAndMotor(); // Check and ring buzzer and motor
}

void updateOutputs()
{
	digitalWrite(Buzzer_PassiveBuzzer_Signal_PIN_D2, Buzzer_PassiveBuzzer_Signal_PIN_D2_rawData);
	digitalWrite(Vibrator_LED_PIN_D5, Vibrator_LED_PIN_D5_rawData);
}

void ringBuzzerAndMotor()
{
	unsigned long currentTime = millis();

	if (!pushButtonPressed) {
		if (currentTime - buzzerStartTime >= buzzerInterval) {
			Buzzer_PassiveBuzzer_Signal_PIN_D2_rawData = 1;
			Vibrator_LED_PIN_D5_rawData = 1;
			display.clearDisplay();
			display.setTextSize(1);
			display.setTextColor(WHITE);
			display.setCursor(0, 0);
			display.println("Please Take Your Medicine");
			display.display();
			buzzerStartTime = currentTime;
		}

		if (currentTime - buzzerStartTime >= buzzerDuration) {
			Buzzer_PassiveBuzzer_Signal_PIN_D2_rawData = 0;
			Vibrator_LED_PIN_D5_rawData = 0;
			display.clearDisplay();
			display.display();
			buzzerStartTime = currentTime;
		}
	} else {
		if (currentTime - lastPressTime < pauseDuration) {
			Buzzer_PassiveBuzzer_Signal_PIN_D2_rawData = 0;
			Vibrator_LED_PIN_D5_rawData = 0;
			display.clearDisplay();
			display.display();
		} else {
			pushButtonPressed = false;
		}
	}
}

/* END CODE */