//project written by Subhadip Biswas
//More information & support my channel www.youtube.com/techzero
//download liquidcrystal laibary
//download keypad laibary
//I dont use display but you can use,i also written code for display
//Give a schematic in my website https://techzeroyoutube.blogspot.com
//I am use home made keypad.do you find how to make it gotoA my youtube channel www.youtube.com/techzero
#include <Keypad.h>
//#include <Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include <SPI.h>
#include <MFRC522.h>
//Servo myservo;
LiquidCrystal_I2C lcd(0x27, 16, 2);
#define Password_Lenght 5 // Give enough room for 4 chars + NULL char
int pos = 0; // variable to store the servo position
char Data[Password_Lenght]; // 4 is the number of chars it can hold + the null char = 5
char Master[Password_Lenght] = "1234";
byte data_count = 0, master_count = 0;
bool Pass_is_good;
char customKey;
int redPin = A2; //pin to red led
int greenPin = A3; //pin to green led
int sw1 = 9; // pin to inside / emergencey switch
int lock = 10; // For Lock/Servo
int IN1 = A0; // DOOR MOTOR OPEN ROTATION
int IN2 = A1; // DOOR MOTOR CLOSE ROTATION
int openend = 2; // DOOR OPEN LIMITE SWITCH
int closeend = 3; // DOOR CLOSE LIMITE SWITCH & DOOR OPENING SIGNAL
int pir = 4; // FOR DOOR CLOSEING SEQURITY
int EMS = 0; //Sudden Stop
int PIRLED = 1; //Emergancy Idicuter
#define SS_PIN 5 //RFID SDA PIN
#define RST_PIN 6 //RFID RESET PTN
int flag = 0; //variable
int doorpos = 0; //variable
int sig = 0; //variable
// const byte ROWS = 4;
// const byte COLS = 3;
// char keys[ROWS][COLS] = {
// {'1', '2', '3'},
// {'4', '5', '6'},
// {'7', '8', '9'},
// {'*', '0', '#'}
// };
bool door = true;
// byte rowPins[ROWS] = {2, 3, 4, 5}; //connect to the row pinouts of the keypad
// byte colPins[COLS] = {6,7,8}; //connect to the column pinouts of the keypad
// Keypad customKeypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS); //initialize an instance of class NewKeypad
// int ExterIn = LOW;
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
int statuss = 0;
int out = 0;
void setup()
{
lcd.init();
lcd.backlight();
digitalWrite(redPin, HIGH); // 2 leds are glowing for system a ready signal
digitalWrite(greenPin, HIGH);
lcd.begin(16, 2);
lcd.home ();
lcd.print(" -WELCOME TO-");
lcd.setCursor(0, 1);
lcd.print(" -SMART DOOR-");
digitalWrite(lock, HIGH);
delay(3000);
pinMode(lock, OUTPUT);
pinMode(redPin, OUTPUT);
pinMode(greenPin, OUTPUT);
pinMode(sw1, INPUT_PULLUP);
pinMode(IN1, OUTPUT);
pinMode(IN2, OUTPUT);
pinMode(openend, INPUT_PULLUP);
pinMode(closeend, INPUT_PULLUP);
pinMode(pir, INPUT_PULLUP);
pinMode (EMS, INPUT_PULLUP);
pinMode(PIRLED, OUTPUT);
ServoClose();
lcd.clear();
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
}
void loop() {
DEMSTOP();
// lcd.clear();
Open();
DoorProg();
if ((digitalRead(sw1) == LOW) && (sig == 0))
{ InputSig();
sig = 1;
}
else if (door == 0)
{
lcd.clear();
lcd.print("WAITING........");
delay(100);
lcd.clear();
}
// if (doorpos == 1)
// {
// lcd.clear();
// // lcd.print("WAITING........");
// delay(100);
// }
}
void clearData()
{
while (data_count != 0)
{ // This can be used for any array size,
Data[data_count--] = 0; //clear array for new data
}
return;
}
void ServoOpen()
{
digitalWrite(lock, HIGH); // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
digitalWrite(redPin, LOW);
digitalWrite(greenPin, HIGH); // signal for Door Open & Password Corect
}
void ServoClose()
{
digitalWrite(lock, LOW); // tell servo to go to position in variable 'pos'
delay(20); // waits 20ms for the servo to reach the position
digitalWrite(redPin, HIGH); // signal for door is close
digitalWrite(greenPin, LOW);
}
void Open()
{
lcd.setCursor(0, 0);
lcd.print(" TOUCH RFID");
// customKey = customKeypad.getKey();
// if (customKey) // makes sure a key is actually pressed, equal to (customKey != NO_KEY)
// {
// Data[data_count] = customKey ;
// lcd.setCursor(data_count, 1);
// lcd.print('*');// print char at said cursor and show *
// data_count++; // increment data array by 1 to store new char, also keep track of the number of chars entered
// }
// Look for new cards
if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}
// Select one of the cards
if ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}
//Show UID on serial monitor
Serial.println();
Serial.print(" UID tag :");
String content = "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
content.toUpperCase();
Serial.println();
if (content.substring(1) == "5A 45 0A B1" , "A3 3F 51 AC") //change UID of the card that you want to give access
{
Serial.println(" Access Granted ");
Serial.println(" Welcome ");
lcd.clear();
ServoOpen();
lcd.setCursor(0, 0);
lcd.print(" --WELCOME--");
lcd.setCursor(0, 1);
lcd.print(" DOOR IS OPEN");
delay(1000);
door = 0;
delay(1000);
DOpen();
flag = 1;
doorpos = 0;
// Firebase.setString(fbdo, "/Home/Swigik/Door/open", "1" );
delay(1000);
Serial.println(" DOOR IS OPEN ");
Serial.println();
statuss = 1;
}
// if (data_count == Password_Lenght - 1) // if the array index is equal to the number of expected chars, compare data to master
// {
// if (!strcmp(Data, Master)) // equal to (strcmp(Data, Master) == 0)
// {
// lcd.clear();
// ServoOpen();
// lcd.setCursor(0, 0);
// lcd.print(" --WELCOME--");
// lcd.setCursor(0, 1);
// lcd.print(" DOOR IS OPEN");
// delay(1000);
// door = 0;
// delay(1000);
// DOpen();
// flag = 1;
// doorpos = 0;
// }
else
{
lcd.clear();
lcd.setCursor(0, 0);
lcd.print(" WRONG PASSWORD");
lcd.setCursor(0, 1);
lcd.print(" TRY AGAIN");
delay(500);
door = 1;
lcd.clear();
digitalWrite(redPin, LOW);
delay(100);
digitalWrite(redPin, HIGH);
delay (100);
digitalWrite(redPin, LOW); // signal for wrong password
delay(100);
digitalWrite(redPin, HIGH);
delay (100);
}
clearData();
}
}
void DoorProg()
{
DOOR_CLOSE:
if ((digitalRead(openend) == LOW) && (flag == 1))
{
flag = 2;
Stop();
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("-DOOR IS READY-");
lcd.setCursor(0, 1);
lcd.print(" --TO CLOSE--");
delay(20000);
DClose();
sig = 1;
}
EMERGENCEY:
if ((digitalRead(pir) == HIGH) && (flag == 2))
{
flag = 1;
Stop();
lcd.clear();
lcd.setCursor(0, 0);
lcd.print(" -ERROR! DOOR-");
lcd.setCursor(0, 1);
lcd.print(" --IS COVER--");
digitalWrite(PIRLED, HIGH);
delay(10000);
digitalWrite(PIRLED, LOW);
delay(1000);
DOpen();
}
DOOR_CLOSEEND:
if ((digitalRead(closeend) == LOW) && (flag == 2))
{
Stop();
lcd.clear();
for (int count = 3; count >= 0; count --) {
lcd.setCursor(6, 1);
lcd.print((String(count)) + " s");
lcd.setCursor(0, 0);
lcd.print("-DOOR IS CLOSED-");
delay(1000);
ServoClose();
door = 1;
lcd.clear();
sig = 0;
flag = 0;
// digitalWrite(sw1, LOW);
}
}
}
void DOpen() {
//digitalWrite(ENA, HIGH);
digitalWrite(IN1, HIGH);
digitalWrite(IN2, LOW);
}
void DClose() {
//digitalWrite(ENA, HIGH);
digitalWrite(IN1, LOW);
digitalWrite(IN2, HIGH);
}
void Stop() {
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
}
void DEMSTOP()
{
if ((digitalRead(EMS) == LOW) && (doorpos == 0) && (sig == 1)) {
Stop();
doorpos = 1;
flag = 2;
delay(2000);
digitalWrite(lock, LOW);
lcd.clear();
}
if ((digitalRead(EMS) == HIGH) && (doorpos == 1) && (flag == 2)) {
// flag = 2;
DClose();
sig = 0;
digitalWrite(lock, HIGH);
doorpos = 1;
}
}
void InputSig() {
lcd.clear();
lcd.print("DOOR IS OPENING");
delay(100);
ServoOpen();
delay(1000);
DOpen();
flag = 1;
door = 0;
doorpos = 0;
}
/////////// PROJECT WRITTEN BY SUBHADIP BISWAS //////////
////////// THANK YOU ///////////