Home Alarm Systems

01_password.ino

#include <Password.h>
#include <Keypad.h>
#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
 
Password password = Password( "1234" ); // Set the Password
 
// Set the LCD address to 0x27 for a 20 chars and 4 line display
LiquidCrystal_I2C lcd(0x27, 20, 4);
 
const byte ROWS = 4;        // Four rows
const byte COLS = 4;        //  columns
const int status_lock = A0; // LED Status Pin
const int status_unlock = A1; // LED Status Pin
const int led_bed = 11;     // Home Light2 Pin
const int led_bath = 12;    // Home Light1 Pin
int pir = A2;               // PIR Sensor Pin
int flame = A3;             // Flame Sensor Pin
int Buzzer = 10;            // Buzzer Module Pin
int alarmValue = 0;  
int fl = 0, state = 0, state1 = 0, state2 = 0, Alarm_fl = 0; // Flag
int dir = 8, dir1 = 0;
String test = "                    ";
// Define the Keymap
char keys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};
 
byte rowPins[ROWS] = { 2,3,4,5, };// Connect keypad ROW0, ROW1, ROW2 and 
                    // ROW3 to these Arduino pins.
byte colPins[COLS] = { 6,7,8,9 };// Connect keypad COL0, COL1, COL2 and 
                        // COL3 to these Arduino pins.
 
// Create the Keypad
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );