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Hardware-based security keypad keeps it simple

hardware_keypad_lock

Instructables user [trumpkin] recently built an all-hardware based keypad lock for a contest he was entering, and we thought it was pretty neat. The lock uses mostly NAND gates and 555 timers to get the job done, which makes it a nice alternative to similar software-based projects we have seen in the past.

The lock has 6 keys on the keypad, which is connected to the main logic board. The keycode is set using a series of headers at the bottom of the board, and you get 10 chances to enter the proper code before the board locks up completely. If this occurs, a “manual” reset via a button built into the main board is required before any more attempts can be made.

As you can see in the video below, the lock works quite well, but suffers from one shortcoming. Any permutation of the key code can be used to deactivate the lock, which is something [trumpkin] says he would like to improve in the future.

If you are looking for some more security-related reading, be sure to check out these other hacks we have featured in the past.

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Hardware hack 3D, software still needed

If you’re on the fence about 3D TV and related technologies [Anton B.] might be able to help you decide. No, he’s not going to shove pamphlets in your face and explain why its the wave of the future. Rather, by showing the hack-ability (its a word) of 3D shutter glasses. A simple bridge of wire across specific contacts can ‘trick’ the glasses into only displaying only the left or right picture.

Wouldn’t that make it just a regular 2D TV again? Yes, that’s the beauty of it. Person A could be watching a completely separate movie pr0n than person B, but all on the same TV. Or two people could be playing a video game, without dividing the screen in half. The only problem is the current lack of software that can interlace movies/games, who’s up for writing some C++ this weekend?

Core3Duino (April fools?!) and xDuino

It’s inevitable. You knew it, we knew it, and while this is being posted on April 1st; its no joke. [johndavid400's] Core3Duino. As we mentioned before, with the additional Arduinos you have now 3 separate processors, allowing 24digital IO, 18 PWM, 18 analog inputs, and more.

Now to keep flamers at bay (calm down), we’ve combined this post with the introduction of xDuino. Yet another attempt at porting Arduino to separate hardware platforms. For the price of a Duemilanove you can have 5 serial, 48 IO, 18 analog, 68Kbytes of Ram and more!

[Thanks Kamil]

Easter Egg Challenge

Beer

Often, hardware designers include nonfunctional additions into designs to make them feel more personal. Commonly known as easter eggs, these additions can often go unnoticed by the public for years. While taking apart an Atari San Francisco Rush: The Rock sound board, reader [Jason] noticed a hidden message on the PCB (see above). Other more recent hardware easter eggs include the inside of the Zune HD, which has the inscription “For our Princess” to commemorate a development team member who passed away, or the Amiga 1000 which features the signatures of the design team on the inside if the case (Pictures after the break).

What we want from you: We want to see the best HARDWARE easter eggs you have found or seen. Leave us a comment with a video, picture, or article that explains what you found, and possibly the background story behind it. Anyone can google easter eggs, and we all know about the easter eggs all over DVDs, video games, etc, but we prefer the kind you find when you are busy voiding your hardwares warranty.

Edit: good catch, that was the Amiga 1000 not an Atari 1000. Thanks to all the commentors.

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Surviving a hacker conference

concrowd

With another hacker conference looming in front of us, it’s time to start thinking about hardware security. Hacker conventions have the most hostile network you’ll ever encounter. [Security4all] points out that 25C3 already has an extensive page on securing your hardware. It starts from the ground up with physical security, BIOS passwords, and locking down bootloaders. There’s a section on securing your actual OS and session. Finally, they cover network usage. It mentions using SSH for dynamic forwarding, which we feel is a skill everyone should have. We’ve used it not just for security, but for bypassing brainless bandwidth restrictions too. There’s also the more trick transparent version. Every piece of data you bring with you, you risk losing, so they actually recommend just wiping your iPhone and other devices before attending. It’s important to remember that it’s not just your own data at risk, but everyone/thing you communicate with as well.

Open source hardware inspires innovation

Technology Review turns the spotlight on the open source hardware movement. Open source hardware is hardly a new concept, but lately it’s been getting a lot more attention, with the help of magazines like MAKE and websites like Instructables. Chumby, a company that sells a modifiable cube with a screen, embedded computer, and a Wi-Fi connection, designed their product to be easily hackable. The openness of the product caused a community heavily invested in the product’s development to be created. The growth of such communities has also sparked interest from corporations such as Nokia, which is collaborating with MIT on open source video decoders. They recognized that opening up would cause development time to be reduced and provide greater flexibility, allowing them to allocate resources to other areas, including marketing and brand development. [Jamey Hicks], director of the Nokia Research Center in Cambridge, believes that the open source movement can even complement closed designs, as long as it’s handled appropriately. With greater access to sophisticated software tools and resources, the barriers to entry keep falling away, and it’s much easier for the world to discover the joys of tinkering and hacking.

[photo: Andreas Pizsa]

-hard plAYer- 8 bit tunes hardware player

For people who miss the golden age of Atari music, you can recreate the magic of 8 bit music with the -hard plAYer-. [Tolaemon] put a lot of thought and work into this hardware player. From the AY-38912 programmable sound generator, which used to be in old computers like the Atari or Colour Genie, to working with the YM file format, each piece is put together with the utmost care. [Tolaemon] also provides his design, firmware(ZIP), and parts list so that you can make your own hardware player.

[via Matrixsynth]

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