Access Control With Arduino + Keypad 4x4 + Servo (UPDATE)

Hi guys, I bring a new instructable for arduino, the control access with password, 4x4 keypad and a servo.

We will use the Password and Keypad librarie for arduino, besides using the servo library, but this project can also be modified by changing the servo, a motor reley or motor stepper, or any other ideas ...

This project can be used in different cases, for doors, Servo action, etc.. Here is the link of the video on youtube to see how it works, then explain step for the armed : D

Step 1: The Parts for the Project

We will need this parts for the proyect:

Arduino UNO or similar ($29.95)
http://www.sparkfun.com/products/11021

Servo motor - Large ($12.95)
http://www.sparkfun.com/products/9064

KEYPAD 4X4 (or similar) ($7.79)
http://www.ebay.com/itm/DATA-KEYPAD-4X4-BLACK-BLACK-KEYS-4-4-Switch-Key-x-/270347954381?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item3ef1fe68cd#ht_2720wt_1037

Proto Board  ($9.58)
http://www.olimex.cl/product_info.php?currency=USD&products_id=170&product__name=Proto_Board_Bread_board

Breadborad jumper wire pack ($10.59)
http://www.olimex.cl/product_info.php?cPath=21_138&products_id=872&product__name=Breadborad_jumper_wire_pack

Four resistor of 910 ohm

One resistor of 1k

Step 2: Preparing the Keypad

Well, now we must put the resistors,remember the potion of the pins of the keypad.

Output pins of keypad:

1 pin = col 1
2 pin = col 2
3 pin = col 3
4 pin = col 4

5 pin = row 1
6 pin = row 2
7 pin = row 3
8 pin = row 4

(look at the second image)

Now they must put three 910 ohm resistors on pin 1, 2 and 3 of the keypad, then put in the arduino digital pins of the NEXT form:

pins keypad  |  pins arduino
---------------------------------------
          1           |           8
          2           |           7
          3           |           6
          4           |           9        
          5           |           5
          6           |           4
          7           |           3
          8           |           2

Step 3: Preparing the Servo

You need put the servo of the next form :

Step 4: Connecting the LEDs

You need put Accepted LED (green) and Denied LED (red) in this way:

Step 5: (UPDATE) and Now, the Programming

You need this libraries:

Password librarie

Keypad librarie

Well, this is the code for arduino, you only need to change that write in bold and put your password.

And this is my new instructable, enjoy it :D

¡ Good luck !