**Keypad Control** rev_117

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    - Project: **Keypad Control**
    - Source Code NOT compiled for: Arduino Nano ESP32
    - Source Code created on: 2024-10-07 22:23:30

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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 *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <Deneyap_Servo.h>  //https://github.com/deneyapkart/deneyap-servo-arduino-library
#include <Keypad.h> //https://github.com/Chris--A/Keypad
#include <WiFi.h>  // Include WiFi library for web server
#include <WebServer.h> // Include WebServer library
#include "ServoControl.h" // Include the ServoControl header
#include "WebServerControl.h" // Include the WebServerControl header

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

/***** 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;

const char* ssid = "your_SSID";  // Replace with your network SSID
const char* password = "your_PASSWORD";  // Replace with your network password

/****** DEFINITION OF OUTPUT VARIABLES *****/
bool doorLocked = true; // Initial state of the door
ServoControl servoControl(9); // Assuming the servo is connected to pin 9
WebServerControl webServerControl; // Create web server control instance

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','#'},
};

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

    // Initialize WiFi
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(1000);
    }
    webServerControl.begin(); // Start the web server
}

void loop(void)
{
    // put your main code here, to run repeatedly:
    updateOutputs(); // Refresh output data
    webServerControl.handleClient(); // Handle web server requests

    // Check for keypad input here and unlock/lock the door based on the PIN
    char key = keypad.getKey();
    if (key) {
        handleKeypadInput(key); // Function to handle keypad input
    }
}

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);
}

void handleKeypadInput(char key)
{
    // Assuming '1234' is the correct PIN code
    static String input;
    if (key == '*') { // Reset input
        input = "";
    } else if (key == '#') { // Check PIN
        if (input == "1234") { // Check if input matches the PIN
            if (doorLocked) {
                servoControl.unlock(); // Unlock the door
                doorLocked = false;
            } else {
                servoControl.lock(); // Lock the door
                doorLocked = true;
            }
            webServerControl.setLockState(doorLocked); // Update web server state
        }
    } else { // Append digit to input
        input += key;
    }
}

/* END CODE */