BlinkM smart garage door opener

posted Apr 28th 2011 7:04am by
filed under: arduino hacks, home hacks

garage_indicator

Calling Canada home, Hackaday reader [TheRafMan] has seen his share of bitterly cold winters. He also knows all too well how hard it is to get his cars started in the morning if somebody happens to leave the garage open. After the door was left open overnight for the second time this last winter, he decided that it was time to add an indicator inside the house that would alert him when the garage had not been closed .

Inspired by our BlinkM Arduino coverage a short while back, his circuit incorporates a BlinkM as well as several other components he already had on hand. He disassembled the garage door switch situated in the house and fit the BlinkM into the switch box once he had finished programming it. A set of wires was run to the BlinkM, connecting it to both a power supply located in the garage as well as the magnetic switch he mounted on the door.

The end result is a simple and elegant indicator that leaves plenty of room for expansion. In the near future, he plans on adding an additional indicator strobe to let him know when the mail has arrived, not unlike this system we covered a few months ago.

Stick around to see a quick video demonstration of his garage door indicator in action.

Read the rest of this entry »

IDE bus sniffing and hard drive password recovery

posted Apr 28th 2011 6:04am by
filed under: pcs hacks, security hacks

hdd_password_recovery

shackspace member [@dop3j0e] found himself in a real bind when trying to recover some data after his ThinkPad’s fingerprint scanner died. You see, he stored his hard drive password in the scanner, and over time completely forgot what it was. Once the scanner stopped working, he had no way to get at his data.

He brainstormed, trying to figure out the best way to recover his data. He considered reverse engineering the BIOS, which was an interesting exercise, but it did not yield any password data. He also thought about swapping the hard drive’s logic board with that of a similar drive, but it turns out that the password is stored on the platters, not the PCB.

With his options quickly running out, he turned to a piece of open-source hardware we’ve covered here in the past, the OpenBench Logic Sniffer. The IDE bus contains 16 data pins, and lucky for [@dop3j0e] the OpenBench has 16 5v pins as well – a perfect match. He wired the sniffer up to the laptop and booted the computer, watching SUMP for the unlock command to be issued. Sure enough he captured the password with ease, after which he unlocked and permanently removed it using hdparm.

Be sure to check out [@dop3j0e's] presentation on the subject if you are interested in learning more about how the recovery was done.




Hacker Typer lets you turn jibberish into useless code

posted Apr 28th 2011 5:03am by
filed under: misc hacks

We generated the screen full of code seen above literally by bashing a hand on the keyboard repeatedly like a monkey. You know, just like how hackers are portrayed in the movies? Hacker Typer makes you look like you know what you’re doing even though you’re too lazy to do something real. It’s a pointless website that’s none-the-less worth a few moments of your time just for the sake of amusement. You’ll be greeted with a set of options. The first lets you decide what pre-determined text will appear as you type. The rest are for page title, foreground and background colors, and number of characters that will appear with each keystroke.

The default features start off with three characters generated for each keystroke, another annoying staple of Hollywood film making. Oh well, even movies that try really hard to get things right end up getting under the skin of someone. Case in point, the Linux shell readout from Tron Legacy.

[via The Presurfer]

Hack a Day Links: April 27, 2011

posted Apr 28th 2011 4:01am by
filed under: Hackaday links

Remaking the first video game

At the Revision 2011 demo compo, a museum project called [MEGA] won first place in the “Wild” category with their zero bit recreation of “tennis for 2”. Entirely made of analog electronics, the retro game completes its presentation on a round o-scope screen. You can see a video of it after the break.

Mint-tin bicycle computer

[Alexdlp's] newest instructable is a attractive and compact bicycle computer running off of an Arduino, and sports the usual bike features. It does not stop there, adding in a 16×2 LCD gives more room for data in both numeric form and bar graph form, and adding in a pair of radio modems allows that data to be fed back home where it can be logged and compared, perfect for the more serious biker.

8085 Reference Card


If you enjoy retro computers, or would like to make your own, you will find this Intel 8085 reference card is a real treat. Based on a original reference card, it has been expanded to give more detail for additional interrupts, electrical reference, T-State timing, and undocumented instructions.

Connect a SNES controller to your Android phone

[Bruno] wanted to be able to use a real SNES controller with the emulator on his HTC Android phone, packing in an Arduino, 6 AA batteries, and a breadboard and mission accomplished! Hardly as portable as the phone, but we commend the “get it done” sprit. Join us after the break for a quick video.

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WonderHowTo inteview of [Matthias Wandel]

posted Apr 27th 2011 4:01pm by
filed under: roundup

If you’re an avid Hackaday reader chances are that you immediately recognized [Matthias Wandel's] name. He’s been featured many many times to go along with his many many talents. Most notably, his ability to do some amazing things with wood. But really, it’s the idea that counts, and he seems to have a duffle bag full of them. [Rachel adn Justin] over at WonderHowTo recently published a full interview with Mattias. In it he shares his thoughts on where some of these ideas come from, how he approaches his projects, and even shares some advice for those just getting started.

This is usually the time where we make a witty remark and try to work in links to feature articles from the past. If we were limited to just one it would be pretty tough (although there’s a special place in our hearts for the wasp sucker). Luckily we’re not limited, so here’s a list of some of [Matthias'] projects which Hackaday covered previously:




Playstation Network breached, no end to downtime in sight

posted Apr 27th 2011 3:15pm by
filed under: news

psn_logo

If you are not a gamer, or simply a casual player, you may not have heard about the recent breach of Sony’s Playstation Network. In short, the network was infiltrated on April 17th, and the service was completely shut down on the 19th as a precautionary measure. Now, more than a week later services have yet to be restored, but Sony is finally starting to talk a bit more about what happened.

At this point, nobody knows the total extent of the data stolen, but stories are emerging that indicate just about everything that could be accessed was accessed. Sony admits that information such as names, addresses, passwords, and security questions have all been accessed by an unauthorized third party. They have also not completely ruled out the possibility that credit card data has been stolen as well.

It seems the situation has turned from a mere inconvenience to PSN users into a full-blown security and PR nightmare. After a breach like this with so many questions left unanswered, and the gaming network rendered completely useless, we have to ask:

When everything is “fixed” and back to normal, what could Sony possibly do to regain your trust?

Be lazy, and get somewhere at the same time

posted Apr 27th 2011 2:30pm by
filed under: arduino hacks, transportation hacks

Cruise the beach in comfortable Jamaican style with this motorized hammock. [Stephen Shaffer] and his friends built it for the Red Bull Creation contest which has as its number one requirement, the need to include an Arduino. We’re basically looking at a hammock frame made out of square pipe that has been put on wheels. Watch the video after the break to see the prototyping, construction, and final product. Looks like originally the electric wheelchair base that’s used for propulsion was centered below the hammock. One sharp turn and the rider/operator gets dumped out on the concrete.

The final version includes a couple of wheels that serve as outriggers, keeping the vehicle upright. A PlayStation 2 controller is used for steering and directional control. It’s polled by the Arduino, which then uses servo motors to control the original wheelchair joystick. At least that’s what we were able to figure out by watching the video.

Read the rest of this entry »

Data scraping and visualization with Python

posted Apr 27th 2011 1:30pm by
filed under: arduino hacks, misc hacks

arduino_dial

[Greg] built himself a small indicator dial with his laser cutter, and wanted to use it for visualizing server performance and load information. Before he started using it for server monitoring however, he thought he should test out his data parsing skills on a simpler data set.

Pachube has a wealth of information that can be freely used for whatever project you might have in mind, so [Greg] started looking around for something interesting to track. Eventually he located the data feed for a tanker ship and wired his dial to display the ship’s speed. He uses a Python script to interface with the Pachube API, which is fed to his Netduino board. A servo motor then changes the position of the dial based on the feed’s data. Since large tankers don’t change speed often, the experiment was a bit of a letdown. He searched for a bit and tuned into another feed that tracked wind speed in New Zealand, getting much better results.

His future plans include hooking it directly to his network and eventually using it to monitor his servers…at least once the novelty of tracking random data feeds wears off.

All of his code is available on GitHub, and he is happy to make a gauge for anyone who is interested, though he doesn’t currently list a price.




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