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	- Project: Servo Lockdown
	- Source Code NOT compiled for: Arduino Nano ESP32
	- Source Code created on: 2024-10-06 11:15:42

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* The servo motor installed in the door will lock or */
	/* unlock based on the correct PIN code received by */
	/* the button. If the door is unlocked and the PIN is */
	/* correct, it will lock. If the door is locked and */
	/* the PIN is correct, it will unlock. */
/****** SYSTEM REQUIREMENT 2 *****/
	/* The webserver provides a web page about lock or */
	/* unlock state of the door. */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include 	//https://github.com/deneyapkart/deneyap-servo-arduino-library
#include 	//https://github.com/Chris--A/Keypad
#include 	//https://github.com/evert-arias/EasyButton

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t keypad_Keypad3x4_R1_PIN_D4		= 4;
const uint8_t keypad_Keypad3x4_R2_PIN_D5		= 5;
const uint8_t keypad_Keypad3x4_R3_PIN_D6		= 6;
const uint8_t keypad_Keypad3x4_R4_PIN_D7		= 7;
const uint8_t pinButton_PushButton_PIN_D2		= 2;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t keypad_Keypad3x4_C1_PIN_D8		= 8;
const uint8_t keypad_Keypad3x4_C2_PIN_D9		= 9;
const uint8_t keypad_Keypad3x4_C3_PIN_D10		= 10;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
bool keypad_Keypad3x4_C1_PIN_D8_rawData = 0;
bool keypad_Keypad3x4_C2_PIN_D9_rawData = 0;
bool keypad_Keypad3x4_C3_PIN_D10_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
float keypad_Keypad3x4_C1_PIN_D8_phyData = 0.0;
float keypad_Keypad3x4_C2_PIN_D9_phyData = 0.0;
float keypad_Keypad3x4_C3_PIN_D10_phyData = 0.0;

const uint8_t KEYPAD3X4_ROWS = 4; //four rows
const uint8_t KEYPAD3X4_COLS = 3; //three columns
char Keys_Keypad3x4[KEYPAD3X4_ROWS][KEYPAD3X4_COLS] = {
	{'1','2','3'},
	{'4','5','6'},
	{'7','8','9'},
	{'*','0','#'},
};

// Instantiate the servo object
Deneyap_Servo myServo;

// Define the correct PIN code
const String correctPin = "1234"; // Example PIN code
String enteredPin = ""; // Store entered PIN

void setup(void)
{
	// Initialize pin modes
	pinMode(keypad_Keypad3x4_R1_PIN_D4, INPUT_PULLUP);
	pinMode(keypad_Keypad3x4_R2_PIN_D5, INPUT_PULLUP);
	pinMode(keypad_Keypad3x4_R3_PIN_D6, INPUT_PULLUP);
	pinMode(keypad_Keypad3x4_R4_PIN_D7, INPUT_PULLUP);
	pinMode(pinButton_PushButton_PIN_D2, INPUT_PULLUP);

	pinMode(keypad_Keypad3x4_C1_PIN_D8, OUTPUT);
	pinMode(keypad_Keypad3x4_C2_PIN_D9, OUTPUT);
	pinMode(keypad_Keypad3x4_C3_PIN_D10, OUTPUT);

	// Attach the servo to a pin (e.g., pin 3)
	myServo.attach(3);
	myServo.write(0); // Start with the door locked
}

void loop(void)
{
	// Check keypad input
	checkKeypadInput();
	updateOutputs(); // Refresh output data
}

void checkKeypadInput()
{
	char key = getKey(); // Function to get the pressed key from the keypad

	if (key != NO_KEY) {
		if (key == '#') { // If '#' is pressed, check the entered PIN
			if (enteredPin == correctPin) {
				// Toggle the servo state
				if (myServo.read() == 0) {
					myServo.write(90); // Unlock the door
				} else {
					myServo.write(0); // Lock the door
				}
			}
			enteredPin = ""; // Reset the entered PIN after checking
		} else {
			enteredPin += key; // Append the pressed key to the entered PIN
		}
	}
}

void updateOutputs()
{
	digitalWrite(keypad_Keypad3x4_C1_PIN_D8, keypad_Keypad3x4_C1_PIN_D8_rawData);
	digitalWrite(keypad_Keypad3x4_C2_PIN_D9, keypad_Keypad3x4_C2_PIN_D9_rawData);
	digitalWrite(keypad_Keypad3x4_C3_PIN_D10, keypad_Keypad3x4_C3_PIN_D10_rawData);
}

/* END CODE */