While at The Last HOPE this year, we were fortunate enough to see Wiremap, a volumetric display made from thread. Using a projector and 256 individual strands of cotton thread, [Albert Hwang] produces 3D effects. The result is a visually stunning piece of work.
[kylemcdonald] has posted this how to build a simple 3D tracking interface. Using 6 resisters, some wire, aluminum foil, an Arduino, and a cardboard box, he was able to do 3D capacitive sensing. Coupling that with Processing, he was able to overlay an interface using augmented reality. The video above shows a 3D tic tac toe application. While it seems less than perfect, its pretty amazing for how simple it is.
Seen anything similar to this out there? What applications would be fun with this?
[sprite_tm]'s back with one of his excellent Atmel projects. This time he decided to turn an original XBox controller (cause he likes 'em) into a standard USB HID device. He gutted the custom USB chip that Microsoft installed and replaced it with an Atmel ATMega88. The ATMega required a few changes to the board, but nothing too off the wall.
[Lindsay Williams] has come up a novel way of constructing custom physical inputs for your programs. SenseSurface is a viable alternative to building a new interface for each application. Simply place the dials, buttons, and sliders on your screen wherever you want them.
A sensor board, placed behind the display, picks up the signals from the inputs. The only limitation to the number of inputs available is the size of your screen. Inputs are held on magnetically, and have a low friction backing to avoid scratching or gouging your screen.
A team of five high school seniors have released some videos of their new Guitar Hero bot named DeepNote. This bot uses a group of custom photodiode modules with an 8 nanosecond latency placed on the screen to sense the notes. The Parallax Propeller system takes this input and controls solid state relays hooked into the guitar's circuitry. After we looked at a few videos of the early prototype system, we could really see how it has evolved. They have custom PCBs and a really nice frame for the photodiode sensors. You can find more info on their How It Works page and view a demo video embedded below.
[Elf] sent in this interesting DIY joystick glove. There aren't many details on the actual glove switch design, but from the schematic on the site, it seems to mostly consist of micro-switches with some pot adjusted transistors to calibrate the X-Y signals.
[Christopher Mitchell] (previously on Hack a Day) has come up with a rather interesting input device. The Clove 2 glove is a Bluetooth data input interface. The goal is to be able to "type" without the use of a traditional keyboard. Key strokes are achieved through finger movements. Your computer simply sees this as a Bluetooth HID device and some software translates it for you.
While it may seem confusing, he's designed it to be very similar to typing on a keyboard. Each finger movement or combination is a key stroke. Just like typing on a regular keyboard, there are modifying strokes such as ALT or shift that effect others. Most common used keys require the least combinations of finger movements.
[sophia] sent in this interesting little video of a USB popcorn popper. It might just work too - we've burned our digits a time or two on a hot flashlight. The bottom is a jar lid, fitted with a pair of high intensity flashlight bulbs. These are wired directly to a USB cable (maybe a bit unwise). When plugged in, the bulbs are on and heat the metal container. Just add oil and popcorn... As usual, you can catch the video after the break.
[Windell] was stoked enough to send us [Jay]'s sweet hack on [Windell]'s Evil Mad Scientist Laboratories Peggy 2.0 kit. [Jay] added serial input and hacked quartz composer on his mac to light up all 625 LEDs with live motion video. If you were jealous of the Metalab's giant LED display, now you can have your own - smaller and cheaper.
EMSL has recently supplemented this awesome device with their Arduino Library for Peggy 2.0. It is a program library that contains various animations and demonstrations of how to draw on a Peggy. Download and enjoy them as they are or tweak them to test out some of Peggy 2.0's capabilities.
We have news for those of you dismissing the new Wii Version of Rock Band. Sure, the lack of DLC is a huge factor, but if you're looking to use the instruments with MIDI software, [Jordan Balagot] has found what may be the easiest way. Since the Wii instruments are connected via USB, they are easy to connect to a computer. [Balagot] used a program called junXion that is a data routing app for OS X. JunXion can take any USB human interface device and remap the buttons, making it easy to set up the drums as a MIDI input device in an intuitive way. Install junXion, plug in the drums, map the pads, and rock out.
[Mark Hoekstra] is a true SGI enthusiast, and he proves it with these 3D glasses for an SGI. Taking advantage of the SGI's stereo viewport, [Hoekstra] created a controller for a pair of CrystalEyes glasses that would allow them to be used with the SGI.
[Hoekstra] used the schematic from [M.C.D. Roos]'s similar project, which used old Asus 3D VR glasses. This project can theoretically be done with any LCD-shutter glasses, the only important thing to know is the maximum shutter voltage the glasses will take. [Hoekstra] felt his way through building the board by common sense alone and somehow managed to avoid any shorts. The board only makes three connections to the glasses: an out to the left lens, one to the right, and a ground wire. After building the controller board out of an LM324 chip and a customized segment of perf board, he learned that he needed a monitor capable of displaying a relatively high bit depth at 100Hz, or 50Hz per eye. He tested the glasses with a game called Hacknoid after making a few last minute changes on the board (forgot the ground fuse), and he was soon making himself dizzy with his functioning 3D glasses.
[Jipa] over at MetkuMods put up an original re-use for old hard drives: make em into power tools. The tiny servo motor that drives the spindle doesn't generate much torque, but once the drive is spinning fast enough, the inertial force of the platter is enough to make it usable for small grinding/sanding projects. The platters are re-stacked directly on top of each other to increase strength - we'd suggest a few dabs of epoxy to make em even stronger. Once stacked, a piece of sand paper is cut to size and held on by the center platter washer. [Via hacknmod]
More Wii Fit Balance Board hacks keep rolling in from Europe. We're not sure we agree with [Juan Gonzales]'s assertion that the Wii Fit Balance board is the best way to control robots, but we can't deny how fun it looks. [Gonzales] managed to control a robot of his own design with the balance board, making it turn when he leans to the sides and moving forward and back when he leans in those directions.
The robot, which he calls SkyBot, is fairly impressive in its own right, built from a PIC microcontroller and featuring various infrared sensors and 6 contact sensors. The robot's OS can be controlled from Windows, OS X, or Linux, but for this project, they used Debian. The balance board interfaces with a laptop connected to SkyBot; custom software (tar.gz file) to make this work was written in python, and is available on [Gonzales]'s robot wiki, as well as instructions on how to build a SkyBot. It is in Spanish, however, so fire up Google Translate and get to work.
[Silverpill] sent in this interesting Super Nintendo mod. [Raph] interfaced a SNES audio processing unit to his parallel port using a logic gate and a few resistors. The project looks like it probably died off, but the goal was to use a APU to play authentic audio from emulated games. Schematics and code to get the thing working are all available on the site.
