Fresh hacks every day
Want to really stretch the battery life on your phone? If you have an OLED display [Jeff Sharkey] may have the answer. He did some testing with his Nexus One to see if color alterations can save on current. Darker colors draw less amperage and he found that the red pixels are the most efficient. He did a little … Read the rest
No hack will be more readily accepted by the significant other more than an automated vegetable watering system. [Jouni's] homemade rig keeps those tomatoes happy with just the right amount of moisture. A bucket serves as the reservoir, a submersible pump gets the water to the soil through a bit of plastic hose. An Arduino monitors the soil sensor, watering … Read the rest
Finally we see a hack that is focuses on safety when it comes to high-power laser hacks. A safety switch has been added to the butt of the flashlight body which houses the laser diode. When the safety is flipped on an LED blinks to prompt the user for a security code. If you enter the correct code on … Read the rest
The GLIP project takes the delight of blinking LEDs and combines it with the ingenuity of modular communications. This takes the Puzzlemation concept a few steps further. In that project the modules were programmed through a base station and could be removed and used as a puzzle from there. The GLIP project uses a master block that you can see … Read the rest
Just the other day we were thinking “You know what we need more of around here? Harmonographs!” And our requests were answered when [Paul] sent in his three pendulum harmonograph. For those unaware, it’s a mechanical device that draws Lissajous curves or “really cool circles” to quote some of our staff.
[Paul] includes all the plans necessary to make … Read the rest
The Hack a Day store has a couple new items. It was brought to our attention that we once held a T-shirt contest, and people really wanted access to that design. Well, now you can get it. The design on the shirt will be roughly 13″x10″ and located at the hem under the right arm. Please note that this … Read the rest
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