PuertaCon ClaveArduino.ino

#include <Keypad.h> //Include Keypad and servo library

#include <Servo.h>

Servo servoblue; //The servo is called „servoblue“ from now on

char* password = „123“; //We set the password. In this case „123“

int position = 0;

const byte ROWS = 4; //In this two lines we define how many rows and columns

const byte COLS = 3; //our keypad has

char keys[ROWS][COLS] = { //The characters on the keys are defined here

{'#', '0', '*'},

{'9', '8', '7'},

{'6', '5', '4'},

{'3', '2', '1'}

};

byte rowPins[ROWS] = {5, 6, 7, 8}; //The connection with the arduino is

byte colPins[COLS] = {2, 3, 4}; //listed here

Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );

int redLED = 12; //The red LED is connected to pin 12

int greenLED = 13; //The green LED is connected to pin 13

void setup()

{

pinMode(redLED, OUTPUT); //The LEDs are defined as Output

pinMode(greenLED, OUTPUT);

servoblue.attach(11); //The servo is connected to pin 11

setLocked(true);

}

void loop()

{

char key = keypad.getKey();

if (key == '*' || key == '#') //If the lock is open it can be locked again by pushing „*“ or „#“ on the //keypad

position = 0;

setLocked(true); //The command to close the lock after „*“ or „#“ is pushed

}

if (key == password[position])

{

position ++;

}

if (position == 3) //This part defines how many digits our code will have.In this case we have 3 digits //(123).

{

setLocked(false);

}

delay(100);

}

void setLocked(int locked)

{

if (locked) // If the lock is closed..

{

digitalWrite(redLED, HIGH); //..the red LED should light up..

digitalWrite(greenLED, LOW); //..the green LED not..

servoblue.write(90); //and the servo should turn to a 90 degree position.

}

else //if the lock is open..

{

digitalWrite(redLED, LOW); //..the red LED should be off..

digitalWrite(greenLED, HIGH); //..and the green LED should light up..

servoblue.write(0); //..and the servo should turn to a 0 degree position.

}

}