Hacked Gadgets Forum

March 26, 2010

Microcontroller based Secret Boxes

at 11:16 am. Filed under Complex Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks

Have a look at these two cool Secret Box projects that PICing4fun has uploaded. They were created years ago but he just recently got them online. They are both built around PIC microcontrollers and the code was written in native ASM machine language. The first one is a 6 sided box in the form of a dice, you need to roll the dice in a way that a certain pattern of number presented on top to open the box. The second looks for a knock sequence to open the box. The knock box is unlocked by a stepper motor and I was actually surprised to see the project being powered by only a few coin cells.


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11 Responses to “Microcontroller based Secret Boxes”

  1. Stu Says:

    Oh these are just so good!
    Reminds me of that Arthur C. Clarke quote –

    Any sufficiently advanced technology is indistinguishable from magic.

    Except none of us could ever perceive this as true magic because we know the tech behind it, others might tho, especially children. In a way its a shame magic is now looked upon so trivially – only as an entertainment medium.

  2. DIY Secret Box! Says:

    […] via hackedgadgets Tags: diy secret box Categories: Circuits, DIY, Featured DIYs, Featured Gadgets, Featured Hacks, Gadgets, Hack, Projects. […]

  3. StuffGoesHere Says:

    Oh god I love these! This is well thought and just a tech wonder. I love the little “position” ball-sensor, very neat/intelligent.

  4. Berni Says:

    Oh great job on the orientation sensor. I would have just went with a accelerometer for the job (I know boring solution)

  5. Josh Says:

    I’ve been thinking of making something like this lately. The main things I would add would be to have a combination, for example, 5-5-4-3-7-1-1. Then, you’d have to knock on the side however many times the number shows up. In this example, you’d knock on the 5 twice then the 4 once, etc. I’d also consider a rotating knock like rotating the box through the 5-5-4-3-7-1-1 but knocking 5-4-3-7-1-1-5. This would a change in the programming and an accelerometer or piezo elements glued to each side, which would require bigger batteries.

  6. Fry-kun Says:

    Awesome! Though it makes me wonder what one would do if the battery died :O

  7. Inventorjack Says:

    These are fantastic! The sort of thing I always wished I had as a kid, and still do.

    I’ve been considering building something similar to the dice box, but using a changing code. For instance, if your code was 4-digits, you’d actually enter 8 digits before the box would open. The first 4 are the current code, and the next 4 are the new code. Next time you want to open the box you must first use that new set of 4-digits, and roll the next 4 to set a new code. Just a thought, but I think it’ll make for a fun project.

  8. Hide Goodies in a Secret Dice - Atmega88 Microcontroller Based - Hacked Gadgets - DIY Tech Blog Says:

    […] been entered a servo will unlock the box so you can get your reward. This project was based on this secret box project. The code and schematics are provided if you are thinking of making your […]

  9. kls Says:

    could you please send me the schematics for the dice project.

  10. Eshay Says:

    Could you please send me the schematics and the program or anything else helpful in building this prodject I’m new at this stuff but love to tinker with computers and electronics. I would like to build this as a great geocache thanks for your help in advance. Eshay

  11. Tim Carr Says:

    This is pretty amazing. Surprised that nothing like this has been mass-marketed to be honest.

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