Fifa Looks At Electronic Augmentation

July 4, 2012 by Mike Szczys 12 Comments

The [Fédération Internationale de Football Association] is joining the growing list of professional sports that is adopting technological means in an attempt to help the human referees. After a botched call in 2010 the organization called for a system that would work day or night, with 100% accuracy and the ability to report to the Refs in less than 1 second. The applicants have been weeded out and it comes down to two systems, both of which use a piece of personal hardware we’re quite familiar with. [Fe80], who sent in the tip, recognized the TI Chronos eZ430 watch in the image above.

The two systems both use the watch as an interface, but work very differently. The first, called GoalRef, uses a sensor suspended inside the ball. This detects a magnetic field made up by the goal posts. We’d guess it’s an inductance sensor that is triggered when it passes a coil in the goal posts (we didn’t find much in the way of technical info so please do your own speculation in the comments). The second system is very familiar. It’s the Hawkeye camera system used by the APT (Tennis) in all the major tournaments.

Ankle Bracelet Lets You Become Emperor Palpatine

June 27, 2012 by Mike Szczys 57 Comments

Want to shoot lighting bolts from your hands to punish your enemies? You can (almost) do just that with this static electricity generator hack. Above you can see the charge jumping off of this guy’s knuckle and surging through the LED. But that’s not the only trick you can pull off when wearing just a bit of hardware around your ankle. The video after the break shows sand grains jumping around as a charged hand is waved over them.

The trick is done by powering a negative ion generator from a 9V battery. This can’t be done directly, since the ion generator is looking for an AC power source. But conversion is as easy as scrapping an inverter which is designed to plug into a car cigarette lighter. Everything is shoehorned into a glasses case, which can then be strapped on to your ankle. Why this fascination with the ankle area? One part of the answer is that this provides an easy way to interface the ion generator output with your skin. The other part of the answer is that you need to make sure the system is grounded (but you’re not) and the build includes a ring that goes around your shoe to achieve this.

Check out the demo and full build instructions in the video after the break.

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Blinky Headgear

June 25, 2012 by Mike Szczys 5 Comments

This hat has a chasing LED feature thanks to our old friend the 555 timer. [BananaSlug] even built in the option to change the speed at the push of a button.

His design starts out with a costume hat. Each of the 25 LEDs is soldered to a 2×4 hole chunk of protoboard. The LED package is pushed through a slit in the hat, but the protoboard remains on the inside where it can be sewn in place. From there [BananaSlug] soldered one negative bus around the circumference, and an individual positive lead from each module back to the control board. They’re addressed by a set of CD4017 decade counters which are clocked by the 555 timer circuit.

This is a great little analog/logic project and the style is perfect if you’ve got the coat to go along with it.

Communicating From Inside Your Dreams

June 20, 2012 by Brian Benchoff 71 Comments

Over the last few years, [Michael] has been working on the Lucid Scribe project, an online sleep research database to document lucid dreams. This project uses a combination of hardware and software to record rapid eye movements while sleeping. Not only is [Michael] able to get his computer to play music when he starts dreaming (thus allowing him to recognize he’s in a dream), he can also communicate from within a dream by blinking his eyes in Morse code.

According to the Lucid Scribe blog, [Michael] and other researchers in the Lucid Scribe project have developed motion-sensing hardware capable of detecting heartbeats. This equipment is also sensitive enough to detect the Rapid Eye Movements associated with dreaming. This hardware feeds data into the Lucid Scribe app and detects when [Michael] is dreaming. Apparently, [Michael] has been practicing his lucid dreaming; he’s actually been able to move his eyes while dreaming to blink our Morse code. ~~The first message from the dreamworld was, of course, “first post”.~~ [Michael] used ‘first post’ to debug his system, but he has managed to blink ‘S’ from a dream. That should improve after he works on his Morse and lucid dreaming skills.

You may now begin referencing Inception in the comments.

Electronic Bracer Wraps A Lot Of Features Around Your Arm

June 1, 2012 by Mike Szczys 29 Comments

[Stephanie] just finished up her wearable project which puts a lot of information where a wristwatch would normally be found. She calls it the Integrated Sensors Electronic Bracer. We had to look up what a bracer is; the name originates with archers and it was a leather wrap used to protect the wrist. This does that, but we don’t think you’ll want the bowstring frequently hitting the electronic components hidden within.

There is a nice finished leather cover which wraps around the unit, leaving just a few holes for key components. Above you can see the parts undressed, with an Arduino compatible board in the middle. It provides a user interface with the OLED display and three input buttons. The array of sensors found on the device include a GPS module to display position data, humidity sensor, magnetometer, luminance sensor, and galvanic skin response.

The opposite side of the bracer has an opening secured by a couple of elastic cords. [Stephanie] mentions that this works, but she’s not happy with the look of it and hopes to make some leather-based improvements.

[via Adafruit]

Dollar Store Arc Reactor Build

May 31, 2012 by Mike Szczys 5 Comments

Some people have a real knack for sourcing parts at the dollar store. [James] is one of those people, having built this Arc Reactor replica using mostly dollar store goods.

The light source is an LED disk light that was removed from its enclosure. A sink strainer, the plastic holder from a package of sewing pins, and some wire mesh go together to make the first layer of the bezel. The push-pin holder is what has the ring of narrow rectangles around the bright center. It was painted black and attached to the sink strainer which provides the concentric holes in the center of the device.

For the detail around the outside [James] went with some clear-plastic drinking cups. By cutting off the top centimeter of each and stacking three together he gets the clear base he was after. The rest of the parts were gathered from his electronics supplies. DIP sockets straddle the drinking glass rims, and are wound with copper wire for the look seen here.

We put this near the top of the dollar store builds along with this Blade Runner umbrella.

Ironman Replica Twofer

May 23, 2012 by Mike Szczys 8 Comments

We think it’s a bit to late to show up for a screening of The Avengers in full costume, but an arc reactor T-shirt would be pretty cool. [4ndreas] built a chest strap that looks much like [Tony Stark’s] chest-mounted power source. It has a 3D printed enclosure which hosts the ATmega8 and 22 LEDs which provide the pulsing goodness. The thin cellphone battery helps to keep the size of the package to a minimum ~~and a strategically placed hole in a black T-shirt completes the look~~. It’s even bright enough to shine through the fabric of this black T-shirt.

But if you insist on head-to-toe regalia you’ll appreciate [James Bruton’s] Ironman suit replica build. Not only does he look the part, but he’s trying to build as much functionality into the project as possible. Most recently he finished the helmet. It’s got a motorized faceplate and LED edge-lit eye plates to impress hackers and cosplay fans alike.

Find video of both projects after the break.

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