Crushtoberfest – Can You Pwn Tom Selleck?

[flickr video=http://www.flickr.com/photos/jmillerid/4055251585/]

On rare occasion, the celestial bodies that control engineering and design awesomeness move into alignment and cast their blessed star dust upon a hacker. Today, we can witness the glorious outcome of such an alignment. Although almost unheard of, it’s a good omen that such a blessed hacker also be adorned with a wickedly furry face.

[Joel] wanted to up the ante for a yearly work gathering. He set out with the concept of Crushtoberfest, a test-your-strength game where a stake is hit with a mallet and the resulting force rings a bell. But bell ringing is for normal projects, [Joel’s] muse required LEDs and fire as a reward for success. In fact, Tom Selleck (god of all things mustache) becomes angry at successful contestants to the point that his eyes will flash red and flames shoot out of his ears.

The mechanical input is a clever design. The stake used as the target is a 6×6 block with some old tire tread affixed to the top of them. The stake rests on a piece of radiator hose that is sealed on one end and connected to a pressure sensor on the other. Radiator hose is resilient, so it takes quite a blow to cause much compression, which is then translated into a value by an Arduino via the pressure sensor. [Joel’s] gone to the effort of building gravitational deceleration into the progress tracker of the vertical string of LEDS. Too bad he didn’t have access to an addressable LED rope to make this easier, but he did pull it off nicely. He also goes into detail about prototyping and building some fireball modules.

Go now and read his blog (oldest at the top, newest at the bottom). We can call the experience nothing short of delightful.

World’s Largest POV Display

How do you convince a power company to let you play with their multi-million-dollar wind turbine? Call yourself an artist instead of a hacker! [Michael Pendry] convinced Siemens to let him install this ‘art’ piece on the rotors of a wind turbine outside of Munich, Germany. It features 9000 LEDs, 3000 on each of the 30 meter blades, and can pump out 20,000 candelas when fully illuminated.

The problem? The blades of the power generator turn extremely slowly compared to fan-based persistence of vision displays. This makes it more of a “long-exposure” display system that is illustrated in some of their press photos. Ok, so the POV is a bit of a let-down, but the display effects achieved are still pretty impressive.

[Thanks Sam]

LED PDF From TI (KUWTA)

[Satiagraha] let us know that Texas Instruments(TI) has given out a neat “LED Reference Design Cookbook” PDF. The document contains 17 some odd little projects featuring different TI ICs and ways of using them to control LEDs in things from backlights to torches to solar lanterns to advanced PWM control! Sure the document is biased towards using TI equipment, but that shouldn’t stop you from recreating, modifying, and generally just having fun with their designs in your own productions.

DIY Mood Lamp Looks Store-bought

[NeZoomie] built an RGB mood lamp as his first electronics project. He certainly hit it out of the park with this one, ending up with a design so clean it could be a commercial product. The controller is an Arduino board (further proof that this is a fantastic entry-level platform) that interfaces with 8 RGB LEDs. He’s built an enclosure out of thick polypropylene that does a great job of diffusing the light and adding a stylish look. The control system features a rotary potentiometer from SparkFun and what he calls a tilt-potentiometer of his own design after drawing inspiration from Hack a Day.

Blinky things are fun and that’s why we see a lot of mood lamps around here. Take a look at the video after the break and if you’ve got the parts, give this one a try!

Continue reading “DIY Mood Lamp Looks Store-bought”

Radar Detector Tester

[Blacklight99] made this cool tool. It is a tester for those radar detectors that people keep in their cars. Though this seems like it would rarely be a tool we would need, it’s an interesting project. Some speed guns that the police use have a “stealth” mode that makes them invisible to some detectors. This tool can tell you if your detector is vulnerable to this. While this really is just a complicated flashing LED, he notes that it could be taken further to be made into a detector that is programmable and not vulnerable to any of the stealth modes.

Raid The Dollar Store For An Illuminated Umbrella

diy-illuminated-umbrella

Here’s a quick and easy illuminated umbrella that [Mikeasaurus] built. How’s this for economical? He found an umbrella that someone left on the bus, and used an LED flashlight and clear poncho from the dollar store for the rest of the parts.

The scavenged LED circuit board is the perfect diameter to fit inside the handle of his umbrella. He removed the middle LED and drilled a hole in the board for the shaft to pass through. Although not well detailed, we gather he managed to shoehorn two CR2032 3v batteries underneath the PCB to power the device. The poncho is wrapped around the shaft to diffuse the light. This is a clever solution as the flexible plastic still allows the telescoping shaft to collapse down to its most compact size.

[Mikasaurus’] umbrella doesn’t make noise or emulate the weather but it is a clever idea. The low difficulty level and availability of parts makes this a great project to do with the young ones who don’t get included in your more intricate hacks.

Voice Controlled LED Sign

[youtube http://www.youtube.com/watch?v=KiYYJ5WMG6I&feature=player_embedded%5D

120 LEDs and NerdKit, check. Python and appropriate Google Voice module, check. Blend on high for 2 minutes, bake for an hour at 400 degrees Fahrenheit. Your soufflé is done, whoops, we mean your voice controlled LED sign is done. Leave a voicemail on Davis’ Google Voice account that starts with “message” and it will be displayed for all to read within a matter of minutes. We think: make it bigger and add a security code before you can leave a message, and you’ve got the perfect recipe for some over sized message fun.

[via Make]