How-To: Go green with lead free solder

We covered many of [Jason Rollette]'s personal projects in the past and are happy to welcome him as our newest Hack-A-Day contributor.

The electronics industry has shifted to lead free compliance, but most hobbyists haven't even considered the personal impact of using lead. Today's How-To will cover what it takes to switch from tin/lead solder to completely lead free. Our previous posts Introduction to soldering and the follow-up still apply to lead free. You may have never considered switching to lead free before, but we hope to help you make an informed decision.

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Cheap projector repair


[Ryan] sent in this writeup on some DIY projector repair. The write-up is a little hard to follow, but maybe it'll inspire some future projector landfill saves. [Dissident] replaced the light bulb and ballast in an older DLP projector with some salvaged MR-16 hardware from an even older over head projector. The main trick required was to bridge the trigger leads that tell the projector that the bulb is on and working.

FPGA projects roundup


FPGA's have become especially useful to the hacker community of late. Once upon a time, these lovely pieces of dedicated hardware were fabled to only be within reach of deep pocketed graphics card producers working to up their shader and vertex counts. Today they're often found in the bowels of high end network gear. As reprogrammable arrays of logic gates, FPGAs represent a happy middle ground between general purpose CPUs and dedicated silicon. After the break, we'll recount some of the more interesting FPGA projects we've seen, like the open source graphics card we featured yesterday.

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Guitar Hero without the console


If you thought your Guitar Hero controller was only good for pretending to play music, think again. Yeah, lots of people have hacked the controller to achieve perfect scores, but what can you do that doesn't require a console. Look after the break for some more creative ways of making music with a Guitar Hero controller.

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DISH wins $1050 in satellite cracking case


Who doesn't love a good corporate espionage story? We certainly don't mind them, especially when they involve hiring a notable hacker to do the company's dirty work. It seems this is exactly what happened in the case of Dish Networks vs NDS Group. Last month, Christopher Tarnovsky admitted he was paid $20,000 in cash to crack the security protocols used on DISH Network access cards. NDS Group claimed the reverse engineering was simply for comparative reasons while DISH is said it resulted in $900 million in damages.

The trial came to an end this week with the court finding NDS group guilty of cracking 1 card (a fine of $49.69) and liable for an additional $1000 in damages. Not quite the big payoff DISH was hoping for, but both companies have expressed feelings of vindication about the decision. DISH Networks says that the jury ruled in their favor, proving that they were right all along (just not $900 million dollars right). NDS maintains that Tarnovsky's work was never publicly shared and that they never intended to flood the black market with cracked cards as DISH has implied.

Hacking the OLPC now and the future



While we haven't talked about the OLPC XO laptop much here, don't think we haven't had our eyes on its developments. Originally shipping last November, this unit captured the interest of many for its humanitarian goal, low cost, and potential hackability. After the break, let's take a look at what has been done with this device and poke at the prototype for version 2.

Continue reading Hacking the OLPC now and the future

Media streamers: buy or build?


The market is flooded with new media streamers, but which one is for you? One of the cheapest and easiest options is the unambiguously titled Netflix Player. With an active account, the Netflix Player streams movies and television shows from their online library (currently around 10,000 videos). It connects to the internet via 802.11b/g WiFi or ethernet, but delivers low-quality video if your connection speed is less than 1Mbps. It costs $99 plus at least $8.95/mo for a Netflix subscription. It runs Linux so hopefully we'll see some hacks for it soon like we did with previous Roku products. A fine device, if you want to stream movies and nothing else, but if you want to stream data from other sources, like a network, usb hard drive, or (gasp) bittorrent, you'll have to look elsewhere.

Continue reading Media streamers: buy or build?

Open graphics card available for preorder


The Open Graphics Project has started accepting preorders for their OGD1, a graphics card with a completely open source design. This initial release is billed as a high-end FPGA prototyping kit specifically designed to test computer graphics architectures. The card has two DVI connectors, S-Video, 256MB RAM, and a 64bit PCI-X connector. The core of the system is a Xilinx Spartan-3 XC3S4000 FPGA. A nonvolatile Lattice XP10 FPGA is used to bootstrap the Xilinx at power up. Here's the layout of the specific components.

An open design like this could prove very beneficial to the free software community. The open hardware makes driver development much easier; binary drivers from traditional graphics manufacturers have been very hard to work with in the past. The OGD1 could also be used with CPU architectures that wouldn't be unsupported by normal graphics cards. An FPGA based design means that CPU intensive processes like video decoding could be offloaded to the video card without needing a dedicated chip. There is still a lot of work to be done and at $1500 we're pretty sure most of you won't be buying the first generation. It's still exciting to see traditional PC hardware getting reinvented and opened up. Check out the OGD1's FAQ for more info.

Erase an iPhone properly


A fundamental problem with flash memory has just gone mainstream. A detective successfully recovered data from a refurbished iPhone purchased from Apple. Flash memory controllers write to blocks randomly so using standard secure erase techniques are no guarantee that all of the storage space will be written.

[Rich Mogull] has posted a method that should wipe out almost all remnants of your personal data. You start by restoring the iPhone in iTunes and turning off all the syncing options. Next you create 3 playlists large enough to consume all of the phone's storage space. Sync each playlist in turn and your residual personal data should be obliterated. All that's left to do is sit back and wonder when the first article about the MacBook Air SSD being impossible to securely erase will be published...

Nintendo DS homebrew guide


Running homebrew applications on the Nintendo DS is easier than ever these days, but if you didn't get into the scene on the ground floor, knowing where to start can appear much more daunting than it actually is. The great thing is: you don't need to crack open your DS and void the warranty. There are numerous peripheral options that handle this easily with no hardware mods required. DS Fanboy has served up a useful guide to the most popular peripherals and homebrew software. They explain the pros and cons of each peripheral along with the installation and uses of a few popular homebrew apps.

Already well versed in the homebrew arts? Then try some hacks we've featured previously, like building a serial interface or installing DSLinux and loading it with with software like this on-screen qwerty keyboard.

Multitouch project roundup



It seems that ever since Microsoft unveiled the Surface table the concept of multitouch has really started to snow ball. We've been fans ever since seeing [Jeff Han]'s original research in this area. Earlier today we looked at a multitouch rear projection TV project but what else is out there? After the break, we've got several multitouch projects you might be interested in.

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Modular reconfigurable on the fly robot demo


[Erik] Sent in this modular robot video. It's not as mentally disturbing as the snake robots we featured before, but it's still pretty cool. It looks like it's using M-TRAN modules. Details are completely lacking, so if you've got some, share 'em.

Phlashing denial of service attack, the new hype


Imagine how surprised we were to discover that by accidentally bricking our router we were executing a brand new attack: Phlashing Denial Of Service (PDOS). This week at EUSecWest, researcher [Rich Smith] will present the theoretical PDOS attack. Instead of taking over control of an embedded system, the attacker turns it into a nonfunctioning brick by flashing it with a broken firmware. Anyone who has flashed a device knows the danger of interrupting the procedure.

Continue reading Phlashing denial of service attack, the new hype

Multitouch rear projection TV


[Christopher Jette] did a amazing job converting a 56" rear projection television into a multitouch display. His original inspiration came from this drafting table project. The screen is a large sheet of 1/2" acrylic with a screen material attached to the back side. The screen edge is surrounded by 168 IR LEDs. When a finger tip touches the surface it scatters the LEDs' IR light. A webcam sees this scattered light and determines where the fingers are. Inside the box is a standard video projector. This is a great reuse of old equipment and we love to see a hobbyist making up ground where manufacturers aren't. For more info on multitouch projects, we suggest the Natural User Interface Group. Here's a video of [Christopher]'s display in action:


Continue reading Multitouch rear projection TV

Flying RC penis violates chessmaster's airspace


A speech by famed chess player Garry Kasparov was interrupted Saturday by a remote controlled flying penis. Since many of you are at work or school we'll leave all the pictures, videos, and tasteless jokes after the break.

Continue reading Flying RC penis violates chessmaster's airspace

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