Instructables

Access control with Arduino + Keypad 4x4 + Servo (UPDATE)

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Picture of 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

 
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Step 1: The parts for the project

Picture of The parts for the project
P1010091.JPG
P1010094.JPG
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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 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 !

donde va el password como lo meto porque si lo dejo en letras negras me da error

camilo.n1012 (author)  caserpsychocgo4 days ago

Hola ! El pasword lo defines en el mismo archivo .ino, en la variable "Password password = Password( "your_password" );", ubicada en la linea 20 del codigo, de todos modos te dejo la imagen de muestra.
Saludos y éxito !

Captura de pantalla 2014-09-25 a la(s) 12.36.08.png
camilo.n1012 (author) 1 month ago

Sorry for not having answered the guys posts, but I had a problem with the mail.

The code already update, if they have more doubts, I can write to me mail camilo.nunez@cnf.cl or send a MP.

Regards !

hayes2552 months ago
Camilo.n1012 the code needs to be updated
hayes2552 months ago
I can't get the password librarie
kschwartz52 months ago
camilo.n1012, the code isn't updated and needs to be so that it will continue to work. Please update it soon.

-Thanks
mekaci893 months ago

The BYTE term seems to be invalid for Arduino 1.X

I am getting same error too. Please update this Instructable, thanks.

r.raj9361 year ago
I made one of this kind and when I was testing there was a power failure and I had to be out till I got my spare keys.
Edward_1 year ago
The BYTE term seems to be invalid for Arduino 1.X, what version did you use?
I'm trying to convert. Can you update this Instructable? or add updated code?
Thanks
nyatuv1 year ago
can i use arduino mega?
kjsrocks1 year ago
could you use an ir remote insted of a keypad if possible a code too thanks.
Hi! Nice instructable! but the link to the password library doesn't work. here's correct:
http://playground.arduino.cc/Code/Password
Verkyn1 year ago
Hi Sir we are making this arduino project and we would like to do it in a 3X4 keypad because there is no available 4x4. If we would order outside the country it will take much time. We would like to ask you if you a have a program of a 3x4 access controller we urgently need it. Thanks a lot it would be a big help for us. :)
tolstoyan1 year ago
ralphlouietionghoy@ymail.com i forgot to attached my email tnx :)
tolstoyan1 year ago
i need the codes for 4x3 wahahhahaha
nice instruction by thw way :)
i also dont know how to change the password? do i have to type my desire password to the code? teach me!!! hahahah im new to arduino hehehe tnx :)
sorry ment 910 ohm resistor
hi, can u give some advice how to start a timer when the password is true? i´m trying but still cant( new at the arduino).
Hello, How would the programming differ if a 4X3 keypad were used? I dont really want mine to have the ABCD, but this is a great instructables.
Thanks, Austin
davila12 years ago
how do i change the password, by the way NICE TUTORIAL
camilo.n1012 (author)  davila12 years ago
Hi davila, to change the password, please go to line 5 of the code, which states Password password = Password ("your_password"); . Good luck !
thanks a lot keep doing this staff
ElStevie2 years ago
Hey Camilo, thanks for the instructable. But I can't seem to get it working. The Servo (MG995) just goes on and off for a few seconds and then just off and nothing else happens until I restart the Arduino. I'm using an Arduino Diecimila and a membrane 4x4 keypad.

Thanks!!
camilo.n1012 (author)  ElStevie2 years ago
Hi Stevie, double check grades you need for your project, if you want that rotation is longer or shorter you have to go to the judgments myservo.write () and set the required value. Tell me if you have more problems. Good Luck
tsoumelee2 years ago
Hi, do you have a failsafe mode in the code (in case of a blackout)? Thanks!
camilo.n1012 (author)  tsoumelee2 years ago
Hi, if you mean a fail-safe mode for a apogan in the arduino code is not very convenient, the best In This case, is to put a batery and connected to Arduino, if you have it connected to AC power you put a diode and put the battery.

Good luck
nice project, but just want mention one thing, the key pad looks too big, get a membrane one so you can stick it on the wall, like this, will be much nice look.
camilo.n1012 (author)  electrodragon2 years ago
Hi, is a very good idea, just need to change the keypad code and change the position of the pins on arduino and I can use a keyboard membranous like this: http://www.olimex.cl/product_info.php?cPath=55_96&products_id=532&product__name=Teclado_de_Membrana_12_teclas_con_conector.

If you need the code for a 4x3 keypad just tell me and publishes :)
traisjames2 years ago
What do you use to make the wiring diagrams?
camilo.n1012 (author)  traisjames2 years ago
Hi, i use the Fritzing, you will download here: http://fritzing.org/download/
very usefull Instructable !! Just one question, should there be a 1k resistor fron pin 4 of pad to pin 9 of Arduino ? Drawing shows no connection ...
camilo.n1012 (author)  Lectric Wizard2 years ago
Hi, is not necessary to connect a 910 ohm resistor on pin 9 (col 4), will read it anyway the pin. Good luck :D