Hey man, you seen my turntable around here?

>> Monday, February 1, 2010

It’s all fine and dandy to have a turntable that sounds great, but [Mike] wanted one that looks great too. He build the transparent record player above and loved it for a little while. When his interest in it waned he built another, then several more. They all have some element of transparency to them, and each is a work of art. Makes us wonder how often he needs to dust his house to keep them looking so good.

Is turntable technology too advanced for your tastes? You can stick with your Edison cylinder, we won’t make fun.

[Thanks John]

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Making a rail gun

[Rp181] is at it again with version 2 of his rail gun project. The original did have some power with 18 400V 3900uf capacitors, but he’s ramped it up to now using 40! Reaching more than double the amount of joules of energy, 12kJ vs. the 5.6kJ! Some other changes include a new injector solenoid setup and revision 3 of his breakwire chronograph. Sadly, he doesn’t mention if this is as green as his first rail gun. Check out a video of just the injector firing and an animation explaining some new updates after the jump.

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Trailer side indicator lights

[Imsolidstate] is working to add side turn signals to a trailer. These orange clearance lights are illuminated when the vehicle’s headlights are on to increase a long trailer’s visibility. They also blink along with the turn signals on the back of the trailer. A standard 6-pin lighting harness doesn’t support this functionality so the trick is to add them without altering the towing vehicle in any way. He’s using an ATtiny24 microprocessor to interpret the logic from the vehicle and then translate the turn signal and tail light data into a signal for the additional side indicators.

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Meat smoker from 55gal drums

[Joel] wanted to use his newly acquired welding skills to make something useful. With tasty flesh in mind he put together this meat smoker. What resulted is incredible, but the fact that he then gave it away as a gift is just amazing.

A curved joint between two pipes is known as a ‘fish mouth’. They can be a hassle, as with the pirate wheel project, but [Joel] used his noggin to make things easier. He first modeled two 55 gallon drums in CAD. The intersecting curve was then generated by the software, printed out on paper, and stenciled on the drum to be cut out with a jigsaw.

[Joel's] writeup is greatly detailed and shares many pictures. He makes every part of this smoker, including the wood handles and the stainless steel grates. The guy really knows how to build stuff, but we should have known that after seeing the Crushtoberfest.

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Nexus One rooted

You know it’s getting a bit ridiculous when hardware that hasn’t hit the streets is being rooted. That’s exactly what has happened, root access can now be achieved on the Nexus One. [Paul] found an exploit and packaged it nicely so that anyone can do it. We do wish he had shared the details of the exploit but we’re not complaining.

If you’re not in the know, the Nexus One is the fabled Google Phone now come to life. It’s slated for release in 2010 and some think that will be officially unveiled at a January 5th press conference. That’s right, unveiled. The device has been cracked yet it doesn’t officially exist. What it does do is join a growing number of rooted android phones.

[via Gizmodo]

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Pinball build throws down the gauntlet

[Jeri Ellsworth] is building her own pinball machine. Her build log is delivered in the form of daily videos that walk through the progress. In addition to seeing the intricate ramps, traps, and controllers she outlines her build techniques. These include reproducing parts based on old pinball machines and bending acrylic with a custom tool or a toaster oven.

The driver she’s planning to use is an Altera FPGA with a bunch of FETs to control the heavy-load components. There’s not a ton of info on the actual electronics but we had a heck of a fun time looking at the creative field components. Our favorite by far is the television from Day 7. The screen is translucent with a rear projected image. When the ramp in front of it is raised the pinball can be jumped right through the screen!

We couldn’t find a project page for this but we’ve embedded [Jeri's] videos after the break. Read the rest of this entry »

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Update: Realtime 3D for you too!

[Kyle McDonald] has kept himself busy working on 3D scanning in realtime. He’s posted a writeup that takes us through the concepts, tools, and assembly of a DIY 3d scanning camera. You should remember a preview of this method posted earlier this month, but now it’s time to build your own. You’ll need a camera, a projector, and some open source software to process the image data. Using these simple tools, [Kyle] turned out much better video than before. Take a look after the break to see his results from scanning at 60 fps using a PS3 Eye. The trick to this setup is getting the correct synchronization between the projector and the camera, something that could be improved with a bit of extra hacking.

Does [Kyle's] name sound familiar? It should, he’s got a long history of quality hacks that we’ve featured over the years. If you’re looking to use a scanner as a multitouch, add some music to tea time, or play with your skittles his work will give you a shove in the right direction.

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GSM Cracked

[Karsten Nohl], with a group of security researchers has broken the A5/1 Stream Cipher behind GSM. Their project web site discusses their work and provides slides(pdf) presented at 26C3. A5/1 has had known vulnerabilities for some time now and is scheduled to be phased out for the newer KASUMI or A5/3 block cipher. This should be an interesting time in the cell phone business.

Thanks to [Tyco] and [MashupMark] for pointing us to this story.

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UAV reigns down vengeance upon thee

An unemployed electrical engineer can be a very dangerous thing. [Cybrown] has turned his skills toward darker, more awesome applications by building an armed unmanned aerial vehicle. This is a remote control airplane that has a movable camera mounted in the cockpit. Video and GPS data are sent back to the pilot who views the picture via a wearable display. We’re betting this doesn’t have the range that the 100km UAV did, but that’s good because this one brings doom from the skies. Check the wings in the picture above, this RC is fireworks-enable. We’ve embedded flight footage and attack video after the break.

Update: Here is a forum post covering this nugget of awesome. There are just a few details but the entire thread is interesting. Someone pointed this out in the comments but they don’t get credit because they didn’t leave a link.

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PS3 wireless visual interface ( Free Play Games Online)

[Technott's] at it again, this time extending the Playstation 3 with a wireless interface. This handheld isn’t actually a PS3. It provides a wireless connection to your PS3 to receive audio and video, as well as to manage controller data. Think of it as a wirelessly tethered handheld that allows you to play Playstation when your wife is watching the Real Housewives. This is similar in size to his Xbox 360 WVI but the case shape and appearance are a big step up (not that we disliked that one). We’ve embedded a video tour of the device after the break.

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Old equipment repository

[Swake] tipped us off about a collection of old equipment. The site is packed full of various hardware that was used for electrical and chemical testing, metering, and experimentation. You could use this to identify the dinosaurs found in backrooms of college science departments, or draw inspiration from it. The next time you’re laying out a panel, or working on a steampunk-ish project go to the source to achieve that vintage look. Some of these remind us of the control panel on [Steve Roberts'] bicycle.

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Composite video output from chumby

[bunnie] posted this pretty slick way of getting composite video out of a Chumby. The Chumby is an open source connectivity device that has already seen some decent hacking. This modification, done by [xobs] isn’t too difficult. It only requires patching into some pads on the motherboard and loading a custom kernel to support the external output.

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Moolodeon electric accordion

[Lee] wanted an electric Melodeon to use with his band. A Melodeon is a chromatic accordion and there are people who already make electric versions but they are a little too expensive for him. Instead, he bought a toy accordion and added electronics to it.

After being thwarted by forgotten PIC skills of yore, he went with an Arduino as the controller. Two pressure sensors are used to detect the squeezing and pulling of the instrument’s bellows. His did some solid work. The video above uses 8-bit sounds like we’re used to from video games and the one after the break sources more traditional accordion sounds.

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Shadow buttons

This art installation uses buttons made of light. A projector fills up the walls and ceiling of a room while a webcam monitors the pattern for changes. When the luminosity of a given area changes due to a shadow, a midi event is triggered. The software that controls the system is written in C# and uses the Emgu CV library to handle the image processing. In the video after the break you can see that creating shadows with your hands prompts changes in the image as well as the sound.

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New Year’s party favor?

[Infernoz] built a POV display to help ring in the new year. There is a low component count; an ATtiny26, DIP switch, power switch, CR2032 battery and holder, pin header, 8 LEDs, and a pull-up resistor. The board is single sided without any jumpers that we can see. He’s moving the display by swinging it on a rope but the PCB is the perfect shape to attach to a fan. We love these blinky displays and if you’ve got some parts this makes a great party favor for New Year’s Eve. Check out the video after the break.

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Lightdrawing Robot

Long exposure “light drawing” photography has become pretty popular lately. We see images pop up all the time that look pretty cool. [Nils] wasn’t feeling particularly artistic himself, so he made a robot to do the hard work for him. he can program patterns in, and it will replay them by changing the color of the light on top while it drives around. Though it may lack a little of the fluidity of the hand made images, it can probably make up for it with complexity. This isn’t the first time we’ve seen this style of photography mixed with robotics, though this one seems fairly more flexible. Tune in after the break to see a video of it in action.

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Star Trek submarine

You can try to be unimpressed. You can attempt to feign disinterest. But even the most casual Star Trek fan will get giddy watching this model submarine in action. Apparently there is a group that builds under water R/C vehicles from static models. It’s not Star Trek exclusively either, we saw some anime vehicles as well as a modern-day shuttle replica.

[via Makezine]

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ATmega8 Spectrum Analyzer

[Manekinen] built a very responsive spectrum analyzer. The components at the party are what you’d expect, an ATmega8 does the hard work interpreting data from the LM324 op-amp. This build stands out because it is fast and configurable. In fact, the explanation of the calibration process is where this project shines.

Instead of using water, an HD44780 module displays the spectrum data. The device currently supports several different character displays including 16×2, 20×2, 24×2, and 20×2. We’ve embedded a video of a 20×4 VFD in action after the break. As the video progresses, watch for the Polish words that pop up. This corresponds to the brightness and sensitivity being adjusted with the 5-button keyboard.

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Five updates for the Steadicam

[YB2Normal] has updated his steadicam 5 times! For those that remember the original, it allowed indie film makers to create smooth and steady video. Version 2 implemented a new gimbal based on a throttle linkage in cars. Version 3 allowed the user to easily adjust angles and weights to prevent accidentally knocking the assembly. Version 4 seems to have disappeared. And finally, version 5 updates the gimbal again using a Traxxas U-joint and redistributes the weight. What should come next? We think a handle, holding onto a threaded bolt can’t be good for your hands.

[Thanks Update]

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MakerBotWatch

If you didn’t get the geeky watch you wanted for Christmas you should consider building yourself a MakerBotWatch. The watch is an Arduino, using an ATmega328 microcontroller running the bootloader. The watch has two concentric circles of LEDs for minutes and hours. A vertical row of four LEDs adds in the additional resolution needed to get 60 minutes on the watch face.

The schematic and board layout are available from an SVN repository so you can make your own board. The device will go into production as a kit but currently the laser-cut bezel will not be part of it.

[via Adafruit]

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Zilog in a matchbox

Now you can have a Zilog computer in the form factor of a matchbox. The RamBlade is a tiny PCB that uses a Parallax Propeller IC to implement the CP/M language. The OS is stored on a microSD card, with a four-pin serial interface (3V3, GND, SO, SI) that allows operation via a terminal program.

Smaller and more resilient than building your own from ancient logic chips, we see this a way to get a whole new set of people interested in this old technology.

[Thanks Oldbitcollector]

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(Yet another) Twitter this controlling Arduino that

Christmas may be over, but we still have a couple of cool holiday related hacks for you. One being [Alpay's] Twitter based interactive Christmas tree ornaments.

We tried to dig up some more information, but it thus far appears a laptop running Processing searches Twitter for specific Christmas related words (like 1337, that’s Christmas-y), sends a buffer to one of three Arduinos which in turn light up a specific ornament. You can check out a live stream here.

For those wanting a bit more information on Arduino and controlling holiday lights, check out [Alpay's] GE health care version of Twitter lights, or our previous post on controlling Christmas trees, or you might even try [Michael's] $10 Walmart light controller.

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The best auto insurance policy gives you good cover at an affordable price

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Today, everyone is under financial pressure and saving money on essentials like auto insurance is a part of everyday life. Here are a few tips to help you make the best deals.

Shop around

Just as you take your time when buying the vehicle, checking several dealerships to get the best price, you should do the same when looking for the auto insurance. A site like this is a great place to start because it gets quotes from all the top companies.

Buy the right vehicle

Some vehicles are cheaper to insure. Insurance actuaries collect information about traffic accidents from all over the US. They rank vehicles according to the likelihood they will be involved in an accident or stolen. Although you may think some vehicles lack style and are boring to drive, it can be worth buying them to reduce your premium.

Drive safely

Insurers rate drivers by age, gender and driving experience. You can tilt the points system in your favor if you avoid accidents and do not pick up tickets.

Check out the ranking points for safety features

You will pay less to insure vehicles fitted with antilock brakes, airbags, and so on. It’s also cheaper to insure a vehicle if it lives in a garage or is parked off the road at night.

Read the policies before you decide which to buy

Check whether the policies give you the cover you need. Read through to see exactly what is and what is not included. Try to fit the policy to your situation, only buying as much cover as you need. Even then, everything may look good on paper, but the crunch comes if you have to make a claim.

Check out the insurance companies

Every state has an insurance department or commissioner, and their websites confirm which insurance companies are licensed to sell auto policies. The best also carry information about the number of complaints upheld against all these companies. Most of the complaints are about the way policies are sold and how the claims are handled. This can give you vital information on which companies to avoid. Even though the premium may cost slightly more, it can be worth paying the extra to get with a company that handles claims well.

What about the new online-only auto insurance?

By eliminating the costs of running a brick-and-mortar operation, insurance companies can offer you better terms at more affordable premiums.

Check your cover regularly

Using this site, it costs you nothing to check whether the quotes for the insurance to cover your vehicle have changed. New companies may have different policies on the market. competition may be bringing down premiums. It can save you a lot of money to change insurance companies every six or twelve months. With budgets tight, never just renew the existing policy. Always check out the market.

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Finding Cheap Auto Insurance – How to Avoid Paying Double For Your Car Insurance Rates

http://www.metaefficient.com/images/Elettrica_electric_Car_lithium_ion.jpg

Sometimes finding a cheap auto insurance seems almost impossible. But this is not true because you can always find one with the help of the internet. Websites of different companies will be provided when you search for them. You should look for the companies which can offer free quotes.

In order to get the best comparison, you will need to change the policy period and the deductible amount before you look into the fees of the different insurance offered by companies. If the important information is not similar, you need to correct them so that you can compare the costs properly.

These comparison quotes provide interested customers a great way to differentiate each company. Online comparison does not need any personal information thus it is an easy task.

If you currently have an auto insurance policy which seems to increase its cost, you have to verify your deductible. The best option is to make a higher down payment so you can pay a lesser amount every month. But if you already have the highest deductible, it is not bad to check with other companies.

By comparing companies, you can determine if you are paying excessively and you can find a company that provides the best rates. When saving money is concerned, insurance plays a big factor.

After using a comparison on the different auto insurance providers, you can be comfortable about the fees you are already paying. But you may also locate a much better deal and change to it. Through the use of the comparison system, you are given the opportunity to save money with your fingertips.

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Car Insurance Rate- A Shortcut for Obtaining Low Insurance Rate

http://www.myride.com/images/myride/default-car.jpg
As matter of fact, several people think car is a luxurious thing for them. So that, no less people will protect their car by all manners. Talking about one of manners from protecting our car, here I would like to write short information related the case on the top. The way is insuring our car to the trustworthy insurance company. But the problem that will be faced next is sometime it is difficult to determine what the best car insurance company for our car is because the reason is many insurance companies is exist but unfortunately, they can’t be the alternative option for us to protect our car. Why ? because most of them conduct the high insurance rates costumer. Amid of this situation, Car Insurance Rate appears. Via their website www.carinsurancerates.com, you will get all the things that you want to protect your car, from the information related auto insurance company until you will obtain low car insurance.
Finally yet importantly, by using this site, you will find not only the best car insurance but also you will be guided to be the smart insurance users. They provide all of items such as purchasing vehicle advice, valuable information on all of types policies, and guiding how to make your premium low. Keeping your cars by insuring your cars at the website, you will get the lowest rate but total security.

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How to reduce your auto insurance premiums

10 Tips: It may be time to sit down and review your policy

Mitsubishi Evo
To save money on car insurance, avoid the Mitsubishi Lancer Evolution. The flashy car is ranked as among the most likely to be stolen.

Here’s something to stop and consider: When’s the last time you devoted mental energy to the particulars of your auto insurance policy? Did you basically set it and forget it?

It’s incredibly easy to let that happen — and if it has happened in your case, it might be high time to refresh your memory on just where your policy stands. You may be able to take a bite out of your insurance bill with a minimal amount of effort.

These quick tips can help you see whether you can save a little – or a lot.

1. Request higher deductibles. The deductible is the amount of money you have to fork over before your insurance policy comes to the rescue. By bumping your deductible up from $200 to $500, you could lower the cost of your collision and comprehensive coverage by 15 percent to 30 percent. By increasing it to $1,000, you could decrease that cost by at least 40 percent.

2. Forgo coverage you don’t need. Think about dropping collision and/or comprehensive coverage on older cars with a low market value. Such coverage often is not worth it because any claim you make probably won’t exceed the cost of the insurance and the deductible amount. To assess your car’s current value, visit Kelley Blue Book or Edmunds.com.

3. Avoid duplicating medical coverage. If you already have good health, life and disability insurance, buy only the minimum personal injury protection required by the state where you live.

4. Purchase a low-profile car. It’s more expensive to insure a vehicle that’s expensive to repair, popular with thieves or known for not having the greatest safety record. For a rundown of vehicles’ risk levels, visit the Insurance Institute for Highway Safety’s Web site. (To check on older models, go to the bottom of the page.)

5. Carpool or drive less. Many insurance companies offer “low-mileage discounts” to policyholders who carpool to work or drive a lower-than-average number of miles each year. You can call your insurer and find out whether you qualify.

6. Opt for safety gear. You can qualify for a discount on many policies if you have air bags, automatic seat belts, anti-lock brakes and daytime running lights. An approved alarm system or other anti-theft device can give you additional savings.

7. Seek out discounts for teens. Insure teenagers on the parents’ policy rather than a separate policy. Teens who maintain good grades and pass an approved drivers’ education course usually can qualify for reduced rates. An additional discount may come into play if your child goes to college more than 100 miles from home and doesn’t bring a car along.

8. Combine policies with one carrier. You may save money if you insure all your vehicles, including trailers and recreational vehicles, on a single policy. Your car premium also may go down if you buy homeowners’ or life insurance from the same company.

9. Ask about other discounts. You also might be able to pay less if you’re older than 50 or 55 and/or retired; if you’ve had no accidents or moving violations in three years; or if you’re a longtime customer. Keep an eye on the bottom line, though. Call a few other insurers to make sure you’re paying the lowest overall amount.

10. Pause before paying extra for roadside assistance. It might be good to line up a roadside assistance plan elsewhere because a tow could increase your auto insurance premium and might even affect your eligibility for coverage. What’s more, you may already have an adequate roadside plan through your credit card.

Sources:

© 2010 MSNBC Interactive. Reprints

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You’re not seeing double: RGB Christmas trees

[mrpackethead], created this monster of a tree. As shown in the video, it’s capable of showing animations, patterns, and potentially video. The 6m tall creation is studded with 2000 waterproof RGB LED modules. Software for the tree was written in Apple’s own Quartz Composer and integrated into Madrix, a piece of software designed with the purpose of controlling LEDs. The 600W system is 100% Arduino-free and costs less than the equivalent of 0.04USD per hour to run in New Zealand.

[Geoist] opted for the Arduino way to rig up his own smaller RGB Christmas tree. Finding a slightly kitschy fiber-optic model in his local department store, [Geoist] was eager to harness its colour-changing powers. Upon opening it up, it was discovered that it was controlled by nothing more than a light bulb and a spinning disk of coloured light filters. [Geoist] gutted the setup in favour of a breadboard with 3 RGB lights hooked up to an Arduino. The sketch for it is available on his site.

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Aerodynamic tail makes Geo Metro even cooler

[MetroMPG], an environmentally friendly car enthusiast from Ontario, added a tail to his car to increase gas mileage. This 1998 Pontiac Firefly is a sibling of the cheap and popular Geo Metro. He had already done some work to cover a portion of the rear wheel wells to reduce drag. Using cardboard, duct tape, and an aluminum frame he extended the rear of the car by around six feet.

The results are pretty impressive. His extensive testing can be seen in the video after the break and reveals a Miles Per Gallon increase of 15.1% at 90 km/h to get to 64 MPG. The tail is removable but we’re thinking it’s a pain to keep relocating the tail lights from the original body to the removable one.

Now we’re wondering if someone is doing this to our Smurf-blue Metro that we sold to the junk man for $100 back in 2001. It ran great, if you weren’t caught in the cloud of blue smoke coming out the back.

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VFD clock (ends the world)

We honestly thought [Jason's] VFD clock was some form of new terrorist attack when we came across the RSS. Thank goodness our relations with Russia aren’t as MAD as they used to be.

The main components are an IV-18 VFD with a MAX6921 driver, which to an untrained ear do sound surprisingly threatening. However an Arduino settles our hearts down and assures us this only has as much potential as blinking a VFD. While the main code, schematics, and CAD aren’t available (open source coming to a theater near you soon) at the moment – you can check out [Jason's] inspiration, the Ice Tube Clock, which runs many of the same components.

Enjoy a video of it in action after the break. We love the ‘countdown’ feature the most.

[via Make] Read the rest of this entry »

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Ultrasonically controlled instrument

is working on a sequencer to control his robotic gamelan. The software maps out the controllers that operate the musical robot, which play the traditional Indonesian instruments.

The controls use ultrasonic distance sensors that detect the proximity of the musician’s hands. This data is collected by an Arduino and sent to a computer for use with the sequencer. The controller body is an upside down salad bowl from Ikea; cheap, available, and creative!

[via @littlebirdceo]

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Automated car cover

[Mike] covers his car whenever he puts it into the garage because the top is always open. After years of this ritual he decided to upgrade his garage to automatically cover the vehicle. The car cover, made from a few bed sheets, attaches to the bottom of the garage door. At the front of the stall the cover has two half-pound weights sewn in with plenty of padding to protect the car’s finish. Ropes attach to these weights, travel through a pulley system, and connect to the garage door opener carriage. This $65 dollar solution makes sure [Mike's] car is always taken care of.

[Thanks 02TA]

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Open source artillery

Thanks to [Josh, Kyle, and Mike], it is now possible to wage (Nerf) war with an Arduino. The turret designed around it is capable of shooting 6 foam projectiles in close succession, between reloads. The faux weapon interfaces with a computer through the Arduino’s onboard serial link (via USB). Software on the PC sends commands to the Arduino, which then executes functions, such as panning, tilting, firing, and rotating the cylinder. The power for the firing itself comes from a 5 gal, 80 psi air compressor. The Java software on the host PC also does smarter things, like show streaming video from the turret’s webcam and even performs basic object tracking (with mixed success). All the code for building the brute is available on [Josh's] website.

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Reverse engineering off-brand media players

[Marcan] picked up this device on the cheap and is working to reverse engineer the controller. This media player is an off-brand Chinese model that can be had for the low-low price of $33.97 with free shipping. That’s worth it just to scavenge the parts for other projects, but the challenge here is to hack the controller because a datasheet was never produced for it. Warm up your logic analyzer, check out the wiki, and you can be pounding away at this ARM926EJ-S based system in no time.

The call to arms comes from [Marcan's] blog. You may remember him as the guy who is working to solidify iPhone sync in Linux or… what else did he do? Oh yeah, he had this little project called the Wii Homebrew Channel a while ago. Get involved and you can learn from some folks who really know what they’re doing.

[Thanks Mr. Seeker]

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Laser harp

[Jared] had a bunch of lasers left over from a previous project that he put to use by producing this laser harp. The look of it reminds us of a very small Koto or perhaps an Autoharp (although the chords can’t be changed on this model).

We’re so glad that [Jared] spent the time to produce such a fine looking body for the instrument. The strings that would traditionally produce the sound on a harp have been replaced with laser diodes shining at Cadmium Sulfide photo resistors. When a beam of light is broken, an Arduino detects the change via the CdS cell and plays a sound through an Altec Lansing speaker inside of the case.

Unfortunately there’s no video available but we’re pretty sure it makes a “pew-pew” sound. There is a link to download the source code but it points to the overview page instead of downloadable code. From the fritzing diagram the CdS cells are part of a voltage divider which provides digital logic to the Arduino. That should be pretty easy to replicate even without seeing [Jared's] code and we’re sure you can source other Arduino instrument projects for tips on wave shield or midi functionality.

[Thanks The Cheap Vegetable Gardener]

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Let it Snow (Leopard)

Yet another netbook can now run OS X. This one happens to be the Samsung n310, making it our first published non-Dell netbook to accomplish the feat. The key lies in a custom (and downloadable) .ISO for intalling said operating system onto a netbook. Full instructions for the task, and an audio driver for the n310 in OS X, are available on the [ComputerSolutions] website.

Oddly enough, the platform swap probably ‘freed up’ some space.

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iPhone N64 emulation with WiiMote

[ZodTTD] has released a Nintendo 64 emulator for iPhone. It is available (for a price) at the Cydia store and can be installed on jailbroken iPhones. The video shows Wii Remote support as a control interface that uses both buttons and the accelerometer, an addition since we last looked at his work. There is no word about nunchuck functionality, a must if you’re going to try to 100% Mario64.

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Choreographed Christmas light show (x4)

[Lucas] is at it again this year. Not satisfied by the computerized systems available on the market, [Lucas] decided to build on last year’s project. To save a bit of cash, he built the setup around Parallax’s low-cost SX28 proto board. The system is capable of controlling 102 channels, with 8-bit dimming. 6 boards control 7 channels each and are communicated to through a serial protocol (reducing the whole setup to only 36 feet of wiring).

More importantly, he’s teamed up with 3 other neighbors who also share a passion for outdoor Christmas lighting and they’ve put together the Christmas Tour of Lights. Money raised from all donations goes directly to the St. Jude Children’s Reasearch Hospital in Memphis, Tennessee.

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Fix a projector on the cheap

[j] sent in this nice writeup on how to revive a dead projector. he managed to pick one up for $20 that had a broken bulb. While the prices of bulbs have come down considerably, they can still be a couple hundred dollars. Being resourceful, he decide to just use a halogen bulb that he picked up at his local big box shop. In the photos, he’s using a 50w mr16 bulb. The results really aren’t too bad. Especially considering that his cost for the entire project is now roughly $25. He does, however suggest that a 100 watt bulb wouldn’t be a bad investment. His projector seems to need some cleaning and adjustment in the lenses as well, but for $25 it isn’t too shabby. We’ve had this submission for a bit, but it didn’t have any pictures of the projector actually working. During our conversation, we may have possibly suggested a picture we’d like to see. You can find it after the break.

We did cover a very similar one last year, which had the driver integrated into a custom bracket, but the project page seems to be gone. There is also the possibility that the projector you get doesn’t just have a bulb problem. Sometimes it is the polarizer that needs replaced.

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Terminate RFID tags

This gun hunts only RFID tags.[mnt], who brought us laser gesture control, built this RFID Zapper but included so much more. Any good weapon has to sound mean, a feat he’s accomplished by incorporating an MP3 player into the rifle. The coil that zaps the RFID tag is powered by a photo-flash unit, but for visual feedback he’s got a second unit that flashes light to signal the demise of your German passport (see the video after the break).

It’s hard to believe we haven’t covered RFID Zappers yet. The concept came out of the Chaos Communication Congress a few years back. This method works by sending a very strong electromagnetic field through the RFID tag that causes it to burn out. There’s a wiki post on RFID Zappers but Firefox threw a certificate warning when we loaded it up; read at your own risk.

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Bluetooth handset

Cramming Bluetooth headset circuitry into an analog telephone body has become an extremely popular hack. With declines in the prices of these headsets, and older telephones being seen as storage-room-clutter this hack is just waiting for you to get started. Join us after the break for a look at what others have already accomplished.

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Atmolight clone of an Ambilight clone

[Fun3] wasn’t satisfied with current methods for duplicating Philips Ambilight. He wanted a completely plug and play solution without soldering so he could expand upon it in the future. This meant Arduino, ShiftBright, and (it pains us to say this) pre-made cables. Some of you are cringing at the thought of no real ‘work’ being necessary, but remember, now this is much easier for your “I can’t change the VCRs clock” aunt to set up and enjoy. Plus it’s quick, easy, and most importantly – clean, something a lot of hackers have a problem with.

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19th century all-in-one PC

…well not quite, but Victorian-styled nonetheless.

In the same vein as his previous creation, [Jake] decided to steampunk his new monitor. However, this time around, he managed to squeeze a full pc into the retro case. A custom aluminum chassis had to be designed and safely house the disk drives and motherboard behind the monitor. Since the 350W PSU was a bit too clunky to mount behind the screen, [Jake] rebuilt the base of the unit around it. The P4, 250GB SATA hard drive, and gold painted cooling fan allow the machine to run Kubuntu “Gusty Gibbon” smoothly. Coupled with a typewriter-inspired keyboard, [Jake's] got a cutting edge antique setup.

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Hacking ZigBee chips: CC2430

[Travis Goodspeed] took an in-depth look at the debugging protocols for some ZigBee chips and posted his findings. In particular he’s looking at the CC2430 System-on-chip. These chips have a debugging protocol that is not hard to implement if you know what you’re doing. Certainly his tips make it easier for the rest of us. Don’t miss the info about reading from, writing to, and overcoming security of this hardware.

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C-clamp current monitoring

[Hydronic] did some tests to make his own current sensor using a c-clamp wrapped with wire. He tried several different cores including an aluminum carabiner, the C-clamp, and what he calls a u-lock (removable chain link). There is some success here that could be improved with cleaner winding and by adjusting readings based on the length of wire used in the wrapping.

This did make us perk up a bit right off the bat. Reader [Mure], who tipped us off about this, suggested that this could be used to make your own Kill-a-Watt without including it in the circuit. We made the jump to house monitoring. We’d love to have a data tracker for our home circuits to curb wasteful energy use. Perhaps we’ll try to make our own sensors and produce a diy Cent-a-Meter.

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L2Ork – Virginia Tech Linux laptop orchestra

Create Digital Music Wrote a semi guide for Linux music creation and interaction after interviewing the L2Ork group. L2Ork is a Virginia Tech based Orchestra that use only laptops loaded with a custom Linux kernel, Wii remotes, and home built speaker salad bowls to produce some surprisingly amazing music. We’ve seen music creation from Wii Remotes before, but it didn’t sound anything like what L2Ork has created. The best part of the project, there are several videos and guides produced by L2Ork so you don’t have to attend Virginia Tech to produce your own music.

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Fake snow from an Arduino

The team at [Sosolimited] was contracted to create an interesting holiday window dispay for the HBO retail store in NYC. The Times Square display encorporates a board of LEDs and a machine for blowing the artificial snow particles around the enclosure.

The code for controlling the LED array was written on top of the open source C++ toolkit, openFrameworks and the entire setup is interfaced through an Arduino Duelmilanove. Multiple Sharp IR sensors were hooked up to the Arduino in order to detect the movement of observers, which in turn triggers fans to blow the ’snow’ around. A National Control Devices relay board connects the heavy duty fans to the Arduino. This video demo shows just how attractive the project is in motion.

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Sarrus linkage 3d printer

[fdavies] has been working on his own 3d printer. He is using printed parts, but unlike the RepRap he’s purposed Sarrus linkages in his design. If it works, this should remove the need for precision rods in building these types of CNC based machines. He’s also recovered DC motors and optical encoders from some inkjek printers. Given that many retailers require you to take junky inkjets home when you purchase a computer we’re betting you’ll find friends happy to part with their unused hardware. We’re impressed with the motion of the prototype seen after the break. Let’s hope this leads to the next generation of affordable 3d printers.

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Advent wreath from parts you have on hand

Here’s an advent wreath made from six parts and a paper clip. Powered by a CR2032 3v button cell, the circuit has been free-formed using a paper clip as the conductor. We love the “dead bug” style of construction used with the ATtiny13 microcontroller because it adds an extra level of intrigue for the uninitiated. This project build on the flickering circuit we saw last year and uses the LEDs as light sensors, only turning on when a certain darkness level has been reached.

We used a tiny13 with our Menorah project last year and still have some lying around that we can use for this. We’re sure you’ve got at least a couple of low-pin-count micros on hand. If you don’t, you should!

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Don’t point that at me

Some things are made to look steam punk but others are steam punk. This example of the later is a camera made mostly of brass. The body has been soldered together with only a shutter and lens being purchased for the project. There is a viewfinder and separate range finder to determine the proper focus for pictures as this is not a single lens reflex.

It should be obvious by now that this is a film camera. It relies on the photographer to turn the winder until an arrow on the knob lines up with a mark on the body for proper alignment. If you set out to make one of these, perhaps you should also manufacture your own film for it.

[via Dvice]

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Ads with $20+ price per click

If you're using Adsense in your blogs, aim to write on high-paying keywords to earn more on your blog. Most ads are valued at less than $0.50 per click. But some, in the list below, cost more than $20 per click.

Blogs about auto insurance have high paying keywords. Data taken in December 2009 from Google Adwords. Note that even within the "auto insurance" keywords, CPC values differ by a huge amount.

$20.87 Auto insurance quotes
$20.37 Get auto insurance quotes
$20.19 Compare auto insurance

Compare with low CPC keywords:
$1.26 Blogs
$0.95 Blogging for money

$0.82 Blog tips

$19.38 Auto insurance comparisons
$19.02 Auto insurance quote
$16.28 Instant auto insurance
$14.67 Affordable auto insurance
$13.87 Auto insurance companies
$13.52 Auto insurance rates
$12.49 Auto insurance discounts
$12.19 Auto car insurance
$10.50 Student auto insurance
$9.72 Auto insurance brokers
$9.51 General auto insurance
$7.92 American auto insurance
$5.14 Auto insurance UK
$4.77 Auto insurance claims
$2.28 Fake auto insurance
$4.56 Auto insurance complaints

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