Nintendo keyless entry

The Nintendo keyless entry system will vigilantly guard your door from intruders. Enter the right code and you get access, enter the wrong code and it will deny you and take your picture. [action_owl] did a fantastic job on this lock, using mainly recycled parts like an old CDRom and an Arduino. It works both with or without the computer. If you choose not to use the computer, you don’t get pictures of the people who entered the code wrong.

We like this project, but we feel it needs to be pointed out that this lock is pretty useless. Everyone already knows the code to get in is UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, B, A.


  1. HPIguy says:

    Actually, it’s up down, up down, left right, left right b a start.

  2. Jake says:

    The most bastardized cheat code of all time…

    Contra 30 guys: up up, down down, left right, left right, b, a, (select if two player), start

    Now where did abacabb come from? :D

  3. j s says:

    ABACABB- Code to unlock blood in Mortal Kombat for the Sega Genesis. Also the name of a heavy-metal band.

  4. anon says:

    now what has this to do with “nintendo”?

  5. dravin says:

    is the keypad an old nes padle? … you didn’t show that part…..

  6. Caleb Kraft says:

    yes, the keypad is an NES controller. it can be seen dangling from the board in the pictures of the instructable. it would have been nice to see it in the video.

  7. Rick says:

    a b a c a b
    it’s a chord progression used in the song Abacab from the band Genesis (too).

  8. Gary says:

    If a visitor doesn’t enter the code correctly, why not, say, electrocute him/her in a comical manner so that they can’t make an attempt to re-enter the correct code for 10 seconds? :-)

  9. hahaha says:

    from a burglar. The lock is so weak that it seems a shame you have put in the work on a system so fundamentally flawed. Would kick off the door then steal the computer and everything else.

  10. BR says:

    Isn’t up up down down left right left right b a select start the cheat code for Heli Attack 3 (unlock everything)?

  11. iSecks says:

    I <3 the konami code.
    up up down down left right left right b a start
    <3 it in the song N.E.S. by YTCracker

  12. Ah man. I had the idea to create a Konami Code lock :(

  13. strider_mt2k says:

    When they do it, you’re never there
    When they show it, you stop and stare
    a b a c a b isn’t anywhere

    a b a c a b

  14. Anon says:

    It’s called the konami code because it’s in several games. I don’t know which publisher though…

    maybe if there was an online encyclopedia to inform us? [I didn't read the article either...yet]

  15. Anon says:

    whoo, I managed to read the article and not follow any links! a rare event indeed. [this and above ~~PidGin128]

  16. Anon2 says:

    whoo, I managed to read the article and not follow any links! a rare event indeed. [this and above ~~PidGin128]

  17. An0n says:

    sorry for all the posts. I thought the warning was false >.< /me sorry

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