Keypad Safe

SRJT10203

Jugaadu's father is going on a Business trip. He is carrying some important and confidential documents with him. He wants to keep these documents safe. But his luggage doesn't have a smart locking system. He wants Jugaadu to make a smart locking box that can help him in keeping his documents safe?

Arduino UNOUNO
Tape
Keypad Sensor
Jumper Wires
Cardboard Box
12V Battery
USB Cable
Foam Sheets
Servo Motor
Glue gun
Cutter

We can make a Safe with the help of a keypad. Servo motor can be used to lock the door. We can make a password-controlled safe with the help of the box.


    include 
#include 
Servo myservo;
String password="1306";
String tempPassword="";
const byte ROWS = 4; 
const byte COLS = 4; 
char keyPressed;
char keys[ROWS][COLS] = {
{'1','2','3','A'},
{'4','5','6','B'},
{'7','8','9','C'},
{'*','0','#','D'}
};
byte rowPins[ROWS] = {9,8,7,6}; 
byte colPins[COLS] = {5,4,3,2}; 
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
void setup(){
Serial.begin(9600);
myservo.attach(10);
} 
void loop(){
keyPressed = keypad.getKey();
if(keyPressed != NO_KEY){
if(keyPressed =='#') 
{
tempPassword="";
myservo.write(0);
}
else if(keyPressed=='*' ) 
{
if(tempPassword==password && tempPassword != ""){
myservo.write(180);
}else{
myservo.write(0);
}
}
else if(keyPressed =='0' || keyPressed=='1' || keyPressed=='2'|| 
keyPressed=='3'|| keyPressed=='4'|| keyPressed=='5'|| 
keyPressed=='6'|| keyPressed=='7'|| keyPressed=='8'|| keyPressed=='9')
{
tempPassword +=keyPressed;
}
Serial.println(keyPressed);
}
}