Fresh hacks every day
Here's a really tiny r/c blimp that doesn't need several cubic feet of Helium to get off the ground. Instructables user [masynmachien] has been building r/c blimps for over a decade now, and this latest build is meant to have the same specs as this nanoblimp. The build is based on an 11-inch party balloon that can provide about 11 grams of lift. This doesn't allow for much leeway in terms of … [Read more...]
Here's an interesting experiment that lets you simulate PenTile displays on a normal LCD monitor. [Barrett Blackwood] wanted to test out how some graphics look on PenTile RGBG displays with different pixel densities. These PenTile RGBG matrices are sometimes used in OLED displays. For instance, the Nexus One smart phone features a display of this type. Because red, green, and blue OLEDs emit … [Read more...]
The beta version of Pyxis 3 is now available. Skewworks continues to develop the ARM operating system, and with the transition to version 3 they've given it a new name: Gadgetos. One big difference from Pyxis 2 is that the new kernal is closed source. But they've taken steps to ensure that the OS is still hardware independent. This is done by reworking the kernel to allow driver loading at run … [Read more...]
Like many people, [yardleydobon] had a hard time locating his ceiling fan’s pull chain at night when his room is completely dark. Rather than continue to flail around blindly grasping for the chain, he decided to find a way to illuminate it instead. He started off by disassembling a solar garden light, retaining the solar cell, photoresistor, and batteries. After paring down the electronics … [Read more...]
Want to host a Jeopardy tournament with your friends? Looking to add a bit more fairness to your school's knowledge bowl? Perhaps you should build some buzz-in hardware of your own. Here you can see [Matt Hanson's] take on this idea. He used one Arduino to gather not just buzzer info, but also keypad data from four satellite controllers. Each has an RJ45 jack, allowing it to connect tot he base … [Read more...]
[Phil] uses both his computer’s speakers and a set of headphones while working at his desk, but he was growing tired of constantly having to remove the headset from his sound card in order to insert the speaker plug. He’s been meaning to rig something up to make it easier to switch outputs, but never seemed to get around to it until he recently saw this LAN-enabled audio switcher we … [Read more...]
We asked, and [Zach] listened. Earlier this week, we featured a circuit he built which allowed his tiny Star Wars Christmas tree to visually replicate the series’ theme song. Several of you, along with myself, thought it would be far cooler if the tree also played the music to accompany the light show, so [Zach] set off to add that functionality. Worried that the music would get annoying … [Read more...]
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