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Cardboard Androids
Posted: March 8th, 2010, 6:50pm EST by Jakob Griffith
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Who needs expensive acrylic based, microcontrolled robots with only a few sensors available when cardboard and an Android cellphone will work much better for much less in cost! The team over at Cellbots have done just that. While they did cheat a little by using a laser cut cardboard for exact measurements and including an [...]
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LEDs invade coffee table crevice
Posted: March 8th, 2010, 4:44pm EST by Mike Szczys
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That’s a lot of LEDs, and a little bit of glass cleaner. [Tobias] spiced up his IKEA coffee table by adding 6144 LEDs. This is a larger realization of SparkFun’s LED coffee table which used 64 8×8 modules. [Tobias] sourced three display boards from Sure Electronics for a total of 96 8×8 modules. These boards [...]
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Dr. Boardman’s Color Conundrum
Posted: March 8th, 2010, 3:14pm EST by Mike Szczys
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We feel like trumpets should be sounding. Someone took the overused project of connecting RGB LEDs to a microcontroller and produced something useful. [Paul] created Dr. Boardman’s Color Conundrum which works much like a simple mechanical coin-op game you might find at a carnival. When switched on, a random color is displayed by the ping-pong [...]
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Give 1984 Mac a Leopard makeover
Posted: March 8th, 2010, 1:33pm EST by Mike Szczys
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[Jake Howe] brought his 1984 Mac up-to-date by cramming new guts inside of the classic case. The goal from the start was to run OS X Snow Leopard on the machine without altering the externals. He heated and formed acrylic around the original CRT screen to make a bezel for the replacement LCD screen. The [...]
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Lava lamp centrifuge
Posted: March 8th, 2010, 11:06am EST by Caleb Kraft
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Like many projects, this one started with a harmless question. “Will lava lamps work in a high-gravity environment such as Jupiter?”. Well, as it turns out, this harmless question was not so easily answered. The only real solution was to test and prove for sure. To do this, [Neil Fraser] built a centrifuge in his [...]
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Don’t worry occifer, there is no blood in my alcohol!
Posted: March 7th, 2010, 6:37pm EST by Jakob Griffith
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[Daniel] wrote up a quick tutorial on interfacing with the MQ-3, or better known Breathalyzer from SparkFun with Arduino. While we would have used perhaps an op-amp/comparator based system and kept it in a much smaller package, the idea was so quick and simple and enjoyable we hoped an article might keep some hackers from [...]
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137 years of Popular Science online free
Posted: March 7th, 2010, 11:22am EST by Caleb Kraft
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137 years of the magazine Popular Science are now being hosted online by Google. You can peruse at your leisure, though you’ll have to search by keyword. We don’t see a date or issue browsing option. The cover art alone is worth your time, even if you’re not a fan of the articles. Many of us have fond [...]
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Time delay door alarm
Posted: March 6th, 2010, 7:38pm EST by Caleb Kraft
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Ever accidentally left your front door ajar and had a pet escape? [BlackCow] came up with a simple solution to this problem. The circuit is fairly rudimentary but a great example of using the basics to get the job done. Now, instead of having an alarm that sounds as soon as the door is open, he has [...]
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Strobeshnik, an HDD clock
Posted: March 6th, 2010, 6:37pm EST by Caleb Kraft
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Strobeshnik is a somewhat different twist on the hard drive clocks we’ve seen in the past. Though still technically using a POV effect, the Strobeshnik displays the numerals instead of a line. By altering strobe timing of an LED behind a platter with the numbers cut into it, he can display whichever number he wants. [...]
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Lucid dreaming
Posted: March 6th, 2010, 10:08am EST by Jakob Griffith
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When we saw [merkz] use of an Arduino to produce lucid dreaming we were quite shocked. Unlike typical setups that just flash a light through sleep, his system monitors eye movement through electrodes and is able to send the data to a computer for graphing and analyzing. The only problem being we couldn’t find a [...]