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Adding LEDs to an engagement ring

# 2013-05-20 05:00:43, Hack a Day
Once upon a time, a nerd met a girl. Things happen as they do, and eventually [Ben] wanted to create the be-all, end-all engagement ring. (here’s a cache) It’s a simple titanium affair with 23 stones around the perimeter. What makes this ring so cool, though, is that it lights up whenever [Ben...

Sand Can Light Up A Room

# 2013-05-12 14:30:00, Gizmodo
LED lightbulbs are already energy efficient, but they would be even better if they could emit light without connecting to the grid at all. Brooklyn-based designer Danielle Trofe is trying to make that happen.Read more...

Auto dimmer hacked into keyboard backlight

# 2013-05-11 11:01:22, Hack a Day
As the title says, [José Faria] added the ability to adjust his keyboard backlight based on ambient light levels. But that’s just one of the things he did during his hacking extravaganza with this Razer BlackWidow Ultimate. When he first received the peripheral he didn’t like the blue LEDs used...

Low water indicator for coffee maker couldn’t be simpler

# 2013-05-10 11:01:39, Hack a Day
The coffee maker which [Donald Papp] uses every morning has a water reservoir on the back that can last for several days. This means he forgets to check it and from time to time will return to find that nothing has brewed. He decided to add a low-water indicator to the machine. His approach is […]

Philips Dimmable LED Lightning Review: So Much Light, So Little Juice

# 2013-05-10 07:44:00, Gizmodo
If it glows like, works like, and even dims like an incandescent, it must be an incandescent bulb, right? Wrong. The 8W Philips EnduraLED only draws a fifth of the power to produce the same warm illumination as the filament bulbs you've already got. Read more...

Satechi USB Bottle Lamp lights your desk with LEDs and power from a PC

# 2013-05-09 05:38:00, Engadget
Sure, the novelty may have worn off years ago when it comes to those miniature USB-powered accessories that reside on your desk and suck power from a PC, but this nifty lamp from Satechi has a bit more going for it. The simply named USB LED Bottle Lamp consumes just 1.2 watts of power, and while...

Laptop backlight converted from CCFL to LED

# 2013-05-04 09:01:09, Hack a Day
[Lee Davison] acquired an Acer laptop that didn’t have a display anymore. He had enough parts on hand to add in an LCD panel and give it a CCFL backlight. But when he started looking for an inverter to drive the backlight he couldn’t find one. What he did have on hand were some smashed [...]

Life meter gives a real life measure of video game health

# 2013-05-01 09:01:23, Hack a Day
This hack makes the virtual real by displaying your video game character’s health meter as a column of illuminated water. The build video, which you’ll find embedded after the break, is really quite remarkable. The column is a clear piece of pipe anchored at one end by hand-tightened plumbing dr...

Wristwatch made of sandwiched PCBs

# 2013-04-28 09:01:23, Hack a Day
Here’s a wristwatch concept we haven’t seen before. Instead of trying to sandwich everything inside of a case it uses a stack of PCBs as the body of the watch. [Mats Engstrom] wrote in to tip us off about his build. The design goes with LEDs which is nothing new. But unlike previous offerings [M...

Old LED marquee turned embedded video player

# 2013-04-26 11:01:42, Hack a Day
[Sprite_TM] is was sent an old LED Marquee by an anonymous fan of his hacking projects. The display isn’t full color, but it’s large — 224 by 48 pixels — and he figured he could render some okay images with the bi-color diodes. In the end, he replaced the controller and turned it into a [......

Energizer Light Fusion LED Lantern Lightning Review: A Light for Every Emergency

# 2013-04-21 12:20:00, Gizmodo
It's the middle of the night and you're in the middle of nowhere when—whumpa, whumpa, whumpa—you get a flat. Rather than fumble through the tire change in the dark, why not keep this portable LED lantern in the boot should the need arise? More