DIY Racing Sim shift box

posted Feb 22nd 2011 4:02pm by
filed under: pcs hacks, peripherals hacks

diy_pc_racing_shiftbox

Ask anyone who has ever owned a car with a manual gearbox – in real life and in video games, nothing beats stick shift. Rather than shell out gobs of money to purchase a pre-made shift box, forum member [nikescar] built his own for about $20.

Using some scrap wood and a plastic cutting board, he went to work building a prototype. The “H” shift pattern was designed in CAD and laid over the cutting board, which was hand-cut with a Dremel. Using some tips found online, he constructed a simple shifting mechanism, then wired in a cheap USB game pad found on Ebay. Using safety pins as temporary micro switches, he ran a few laps, and was quite happy with the results. Once the switches arrived, they were fitted to the shift box and it was off to the races.

[nikescar] reports that the shifter works extremely well, allowing him to row through the gears with the greatest of ease, sans any fear of breaking things. Keep reading to get a better look at the shift box internals.

Read the rest of this entry »

iTalkman Refrigerated Franken-phone

posted Feb 22nd 2011 3:01pm by
filed under: cellphones hacks

italkman_frankenphone

[Jani] over at MetkuMods was commissioned to build a prize for an on-air contest held by MTV3 in Finland. Well known for some of his previous work, he was a natural choice for this project. The only stipulation for the build was that it contain three specific items: a Mobira mobile phone, an Apple iPhone, and a refrigerator. For those of you who don’t know, a Mobira Talkman is an old-school “mobile” phone built by Nokia in the 80′s that weighed in at 11 pounds, and was far from convenient to use. In this case however, the size of the phone is an advantage since he was able to gut it and use the frame to make up the body of the refrigerated compartment. He sacrificed a soft-side portable heater/cooler bag, removing the built-in peltier cooler and associated components, later grafting them onto his Talkman case.

The next task was to add the iPhone to the Talkman. Rather than have the old handset sit there uselessly, [Jani] decided to mount a small Bluetooth hands-free module inside the handset, allowing it to answer calls, adjust the volume, and change music tracks on the iPhone. The iPhone was put in a hard plastic case, then mounted to the Talkman handset where the keypad and display used to reside.

All in all, the iTalkman is a pretty cool looking device, though we wouldn’t want to be tasked with lugging that thing around all day!




DARPA’s hummingbird spybot

posted Feb 22nd 2011 2:01pm by
filed under: robots hacks, security hacks

Nope, this isn’t some extravagant fishing lure, it’s the US Government’s newest way to spy on its people enemies. The hummingbird bot has no problems flying like an actual hummingbird while recording video. It was developed by a company called Aerovironment as part of a Defense Advanced Research Projects Agency (DARPA) contract. Of course details are scarce, but you can see the device flying around while broadcasting its video feed after the break. Sure, it’s making much more noise than you would expect from an actual hummingbird, but this is just the version that they’re shown off publicly, right?

It has certainly come a long way since the company was awarded the contract few years back. We assume that the hummingbird is the realization of research efforts pumped into their ornithopter project. Those proofs of concept from 2009 on what was called Project Mercury showed off a winged flyer in a controlled environment. To see this year’s model flying out in the open is pretty neat.

Read the rest of this entry »

Global CALCnet: your TI-83 just acquired Internet

posted Feb 22nd 2011 12:00pm by
filed under: handhelds hacks

Global CALCnet lets you connect your TI graphic calculator to the Internet and use your favorite services like instant messaging and Internet relay chat. It also provides the option of worldwide multiplayer functionality for games ported to the device such as Scorched Earth and Tetris. We looked in on [Christopher Mitchell's] CALCnet in December when it was being used to create local area networks with the adding machines. He’s taken that up a notch with a helping hand from Arduino. An Arduino board is used to connect the serial communications from the calculator to an Internet connected PC via the Arduino’s USB capabilities.

Think this will waste a lot of time in schools? Unlikely since an Internet connected computer is integral for this system to work. If you have a computer in front of you why waste time on the calculator network? Still, how hard would it be to build a WiFi module that can directly connect them to an access point? That may be a moot point as the Slashdot article that pointed us to global CALCnet also links to a calculator port of DOOM. It runs quite well, as you can see in the video after the break. This is a must-have for anyone owning a TI Nspire that can run it.

Read the rest of this entry »

KiwiDrive HouseBot

posted Feb 22nd 2011 10:54am by
filed under: Hackerspaces, robots hacks

Forskningsavdelningen, a Swedish hackerspace, had a hackathon last weekend and the KiwiDrive HouseBot is one of the items that resulted from the group effort. They set a goal to use standard, easy to obtain parts, so that the robotic platform would be accessible for reproduction by individuals or at other hackerspaces. The three-limbed device rolls around on a triad of omni-directional wheels -which are probably the hardest part to source but you can always print your own. An Arduino Uno was used as the hardware interface, driving the three stepper motors for locomotion.

It’s not pictured above, but the fourth generation of the little guy also includes a webcam. The camera rides in the center of the body and is mounted on a servo. This makes it possible to turn the camera, meaning there’s no real front or back to this design. Future plans include adding an on-board computer (this is larger than it appears) and implementing emoticons on an 8×8 LED matrix, presumably so you can tell how the bot is feeling today.

[Thanks KiwiRay]




Kinect to get Windows drivers months after open source drivers were developed

posted Feb 22nd 2011 10:02am by
filed under: xbox hacks

Microsoft is planning to release Windows drivers for the Kinect this spring, months after open source drivers were developed by a motivated hacking community. [Johnny Chung Lee], who worked with the Microsoft team when the hardware was developed, mentions that he had pushed for the giant to develop and release at least basic Windows drivers. That refusal led him to a position as top cheerleader and bounty contributor in Adafruit’s Open Kinect Contest which resulted (quickly we might add) in the availability of open source drivers. If you’ve been following Hackaday or any other tech blogs the last three months you’ll know that an explosion of projects using the Kinect followed, and [Johnny] figures Microsoft’s decision to release Windows drivers is an attempt to ride this wave on their own flagship OS rather than continue to watch from the sidelines.

Light sensitive MIDI glove

posted Feb 22nd 2011 9:00am by
filed under: digital audio hacks

The latest offering in glove-based noisemakers forsakes commonly used flex sensors in favor or photoresistors. [Bruno Ratnieks] is responsible for this musical glove and his methods will be very easy to recreate. He used an Arduino to interface with it while providing a USB connection to your audio software. The sensors themselves couldn’t be easier to throw together, with each photoresistor creating a voltage divider when combined with a fixed-value resistor. That’s all the hardware you need, and with some creative coding you can making it do much more than the effects heard in the video after the break.

Some will say that [Bruno] simply didn’t used enough duct tape with his project design. Be we liked how he wove the wiring into the mesh of these knit gloves to keep it firmly in place.

Read the rest of this entry »

555 Cartoons

posted Feb 22nd 2011 8:02am by
filed under: video hacks

Drehkino is a Turntable Cinema that plays short (50 frames) looping animations from specially printed, disks, and is housed in a wooden frame similar to a record player. The paper disks are the frames of animation and an optical rotary encoder pattern, that pattern is picked up by a infrared pair scavenged from an old mouse. The signal is then passed onto a 555 timer configured as a Schmitt trigger that (indirectly) drives the led strobe light creating animation that is synced to the speed of the turn table.

That sounds all good and well, but it must be a big pain to split up an animation and calculate each frame’s position etc, well that is covered too by a couple scripts. Movie clips are sent though virtualdub to select what 50 frames you want, then are exported to individual images, an sh script then takes over and gawk is used to manipulate the data and create an ImageMagick (“CONVSCRIPT”) file. After you do the script dance you are left with a perfectly spaced wheel with encoder ready to print on standard paper in a PDF format.

Software and schematics included, with future improvements already in the works and its nifty, so its worth a check. This is an interesting take on the old zoetrope design.




Hack a Day serves up fresh hacks each day, every day from around the web as well as hacking related news.

Send us your hacks










     




Hacks

Resources