We all know the scene, Obi-Wan Kenobi gives Luke a helmet with the blast shield down. He tells Luke “Your eyes can deceive you. Don’t trust them. Stretch out with your feelings!” Easy for Obi-Wan to say – he doesn’t have a remote training droid flying around and shooting at him. [Roeland] and his team are working to create a real-life version of the training droid for Hackday’s Sci-Fi contest.
The training droid in Star Wars may not have had the Force on its side, but it was pretty darn agile in the air. To replicate this, the team started with a standard Walkera Ladybird micro quadcopter. It would have been simple to have a human controlling the drone-turned-droid, but [Roeland and co] wanted a fully computer controlled system. The Ladybird can carry a small payload, but it just doesn’t have the power to lift a computer and sensor suite. The team took a note from the GRASP Lab and used an external computer with a camera to control their droid.
Rather than the expensive motion capture system used by the big labs, the team used a pair of Wii Remote controllers for stereo vision. A small IR LED mounted atop the droid made it visible to the Wii Remotes’ cameras. A laptop was employed to calculate the current position of the droid. With the current and desired positions known, the laptop calculated and sent commands to an Arduino, which then translated them for the droid’s controller.
Nice work guys! Now you just have to add the blaster emitters to it!
Continue reading “Star Wars Training Droid Uses The Force”
It’s been just a bit over a year since the Wii U was released along with the extremely impressive Wii U controller. With a D-pad, analog sticks, accelerometer, gyroscope, magnetometer, camera and 6.2 inch touchscreen, this controller is ripe for a million and one projects ranging from FPV quadcopters and robots to things we can’t even think of yet. At this year’s Chaos Communication Congress, [booto], [delroth], and [shuffle2] demonstrated how they cracked open the Wii U controller’s encryption allowing for Wii U controller ’emulation’ and giving us full documentation on how the whole thing works.
The guys started on their reverse engineering journey by dumping all the flash chips found on the controller’s board. In those binary blobs, they found Nintendo used a truly ingenious way of obfuscating the WiFi keys used to connect the controller to the Wii: rotate left by three. To be fair to Nintendo engineers, it was secure until someone figured it out.
Connecting the controller to a PC over WiFi is only half the battle, though. Initial information from the Wii U launch suggested Nintendo used Miracast for all the I/O between the controller and the console. This isn’t the case; instead the video, audio, camera, and button input are non-standard but very simple protocols. The hardest to break into was the video display for the touchscreen, but the guys discovered it’s pretty much H.264. After getting around some Nintendo weirdness, it’s possible to display video on the controller.
The guys have put together a small, extremely alpha library that comes with all the demos, documentation, and reverse engineering information. There’s a large wish list of what this library should include, but now that the information is public, it might be the time to pick up a Wii U.
Video of the talk below, here’s the presentation slides, and a demo of emulating a Wii U game pad on a PC.
Continue reading “Using The Wii U Controller With Everything”
With the launch of the Wii U yesterday, we were wondering exactly how long it would take for this new console to be broken wide open allowing for the execution of homebrew code. Technically, it only took a day, as [wraggster] shows us, but the results aren’t what you would expect. Right now, he’s using methods meant for the classic Wii to open his system up; probably not the best way to open up the Wii U, but a start nonetheless.
This hack revolves around the Super Smash Bros. Brawl exploit that allows for the execution of unsigned code. It’s called Smash Stack and is one of the more popular ways of getting homebrew code running on the old, last-gen Wii.
Of course [wraggster]’s hack is dependent on the fact the classic Wii has been open for homebrew development for years now, and only works because of the Wii U’s ability to play classic Wii games. This probably isn’t the direction Wii U hackers want to go into, but it does provide a way for anyone to get into the Wii U system without using any new tricks.
We’ve seen strollers and car seats that have a steering wheel for the baby to play with (like in the opening of The Simpsons). But what we hadn’t seen is a stroller that allows baby to actually steer. You might think that a putting a motorized vehicle in the hands of someone so young is an accident waiting to happen. But [Xandon Frogget] thought of that and used familiar hardware to add some safety features.
The stroller seen above is a tricycle setup, making it quite easy to add motors to the two rear wheels. These are controlled by a tablet which you can see nestled on the canopy of the stroller (look for the light reflected on the glass). This interfaces with two Kinect sensors, one pointing forward and the other pointing back. They continually scan the environment, looking for obstacles in the stroller’s path. You can see [Xandon’s] little girl holding a Wii Wheel, which connects with the tablet to facilitate steering. A test run at the playground is embedded after the break.
Continue reading “Robot stroller lets baby steer without mowing down other toddlers”
Capacitive touch plants
Here’s a proof of concept for using plants as a capacitive touch sensor. The sensor is simply a hunk of double-sided copper clad board attached to a microcontroller. But it seems to be able to sense what part of the plant is being touched. [Thanks Fabien]
Adding wireless charging to a Nokia N900
This hack is quite common, but it’s still fun to see what hardware is being outfitted with an inductive charger. This time it’s a Nokia N900 that’s ditching the charging cables.
Wii carrying suitcase from a plastic tackle box
This Wii carrying case (translated) looks great and cost just a few bucks. It started as a tackle box for carrying around your fishing lures. But a bit of creative cutting and there’s a place for everything.
Browser based schematic and board layout
There’s a new kid on the block when it comes to circuit design. Circuits.io offers in-brower schematic design and board artwork layout. [Thanks ADIDAIllinie (and a few others)]
Halloween rapidly approaches and we hope that [Tim’s] carving of Bender in a pumpkin will inspire you to send in your own Halloween projects.
One of the really cool things about the Nintendo Wii when it was first introduced was the ability to play GameCube games on it. This made it a no-brainer for a lot of folks to upgrade. But as the heyday of legacy systems fades into history, Nintendo decided this was no longer a selling point and stopped populating those components. The good new is, if you don’t mind a lot of PCB soldering you can add your GameCube bits to a modern Wii motherboard.
[Deadlyfoez] launched a raffle to raise enough money to buy a new version of the hardware (we guess the raffle prize is the modded console). He then proceeded to solder on four GameCube controller ports and a memory card reader. There are also a number of passive surface mount components that need to be added. But as the video after the break shows, once in place the functionality reappears on the software side.
Continue reading “Grab your iron and add GameCube back to the Wii”
Whoops… Looks like we covered this already. My mistake.
In case the name didn’t tip you off, this fun little kart was inspired by MarioKart. The goal was to build a functional go kart that could be controlled via the Nintendo Wiimote. They did a pretty good job and kept it fairly simple too. They designed a frame that vaguely mimics the shape of the carts in the game. The steering is handled by a 4″ stroke linear actuator. This was initially hooked directly to the tie-rod, but they found it to be too slow. Their solution was to put a lever in between the two with a 1to 3 ratio. This made everything much snappier.
Though they were capable of implementing PWM on the motors in their hardware, they opted to stick with full on, full off because of the push-button nature of the controller. The connection and communication are handled with an Arduino and they don’t mention what bluetooth module they use.
You can see in the video below it is fairly responsive and has more than enough power to lug a passenger over some varied terrain.
Continue reading “The WiiKart, a wireless go kart”