This Isn’t The R2-D2 Controller You’re Looking For

Who loves a good R2-D2 robot? Everyone, but especially young Star Wars fans who — frustratingly — have no problem spotting a controller and spoiling the illusion of an R2 unit brought to life. [Bithead942]’s concealed his R2-D2’s remote and re-establishes the illusion of an autonomous droid — no Jedi mind-tricks necessary.

[Bithead942] prefers to accompany his droid in traditional a Rebel Alliance pilot’s suit, so that gives him a bit of extra space under the jumpsuit to help conceal the controller. Dismantling a Frsky Taranis X9D controller, [Bithead942] meditated on how to use it while so concealed. In a stroke of insight, he thought of his unused Wiimote nunchucks, and launched into the build.

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Learn Some Plastic Techniques With This SNES WiiMote Mod

Not all hacks have to be deeply technical. Sometimes a good show of skill is just as impressive. [lyberty5] takes two completely different hunks of plastic and somehow epoxies them into a convincing and, most impressively, reliable chimera.

While the WiiMote’s motion controls certainly caused a lot of wordy debate on the Internet when it was debuted. While everyone and their grandmother who owned a game company rushed out to copy and out-innovate it once they saw Nintendo’s hoard of dragon gold. Most game designers had other thoughts about the concept, mostly that it wouldn’t do for a platformer. So the gamer caught in the middle of it all had to rotate their grip-optimized rectangle 90 degrees and blister their thumbs on tiny buttons to play. Continue reading “Learn Some Plastic Techniques With This SNES WiiMote Mod”

Tricking Duck Hunt to See A Modern LCD TV as CRT

A must-have peripheral for games consoles of the 1980s and 1990s was the light gun. A lens and photo cell mounted in a gun-like plastic case, the console could calculate where on the screen it was pointing when its trigger was pressed by flashing the screen white and sensing the timing at which the on-screen flying spot triggered the photo cell.

Unfortunately light gun games hail from the era of CRT TVs, they do not work with modern LCDs as my colleague [Will Sweatman] eloquently illustrated late last year. Whereas a CRT displayed the dot on its screen in perfect synchronization with the console output, an LCD captures a whole frame, processes it and displays it in one go. All timing is lost, and the console can no longer sense position.

[Charlie] has attacked this problem with some more recent technology and a bit of lateral thinking, and has successfully brought light gun games back to life. He senses where the gun is pointing using a Wiimote with its sensor bar on top of the TV through a Raspberry Pi, and feeds the positional information to an Arduino. He then takes the video signal from the console and strips out its sync pulses which also go to the Arduino. Knowing both position and timing, the Arduino can then flash a white LED stuck to the end of the light gun barrel at the exact moment that part of the CRT would have been lit up, and as far as the game is concerned it has received the input it is expecting.

He explains the timing problem and his solution in the video below the break. He then shows us gameplay on a wide variety of consoles from the era using the device. More information and his code can be found on his GitHub repository.

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Wii-Motified Laser Cutter refocuses for Contoured Cutting

Still laser cutting all of your parts in 2D? Not the folks over at [Just Add Sharks]. With a few lines of code and an in-tact Wii-Mote, they’ve managed to rig their laser cutter to dynamically refocus based on the height of the material.

The hack is cleanly executed by placing the Wii-Mote both at a known fixed distance-and-angle and within line-of-sight of the focused beam. Thankfully, the image-processing is already done onboard by the Wii-Mote’s image sensor, which simply returns the (x,y) coordinates of the four brightest IR points in view. As the beam moves over the material, the dot moves up or down in the camera’s field-of-view, triggering a refocus of the laser as it cuts. Given that the z-axis table needs to readjust with the contour, the folks at [Just Add Sharks] have slowed down the cutting speed. Finally, it’s worth noting that the Wii-Mote was designed to detect IR LEDs, not a 10600-nanometer laser beam, but we suspect that the Wii-Mote is receiving colors produced by the fluorescing material itself, not the beam. Nevertheless, the result is exactly the same–a dynamically refocusing laser!

Now that [Glowforge] has released a continuously-refocusing laser cutter implemented with stereoscopic cameras, it’s great to see the community following in their footsteps with a DIY endeavor. See the whole system in action after the break!

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Wii MotionPlus Gyro to Microchip PIC

Sometimes the most mundane products have surprisingly sophisticated internals. What’s in a game controller? If it is a Wii remote, you’ll find a lot inside–an IR sensor, Bluetooth, an accelerometer, and EEPROM. It also has a six pin expansion port that allows I2C peripherals connect to the controller.

[DotMusclera] wanted to experiment with a gyroscope and decided to hook up to the Wii MotionPlus to a Microchip PIC. Using information from the WiiBrew wiki, [DotMusclera] connected a PIC18F4550, an LCD, and a handful of components (mostly to do 3.3V level conversion), he set up the hardware on a breadboard. The only odd part you might have to work around is a Wii breakout board that converts from the breadboard to the Wii interface.

The software is easy to follow since it is written in Hi-TECH C and well-commented. The hardware lacks a schematic, but from the parts list and the video, you can probably figure it out. The setup works well and shows roll, pitch, and yaw on the LCD screen.

The project log is very detailed, with a lot of information about gyroscopes and the communication format the gyro uses. The video demo is worth watching as well.

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Stuffing A Wii U Into A Laptop

For some reason, a lot of hackers seem to have an obsession with jamming video game consoles into smaller boxes with screens. It’s more portable yes, but be honest — how much use is it actually going to get? Regardless, [RedmagnusX] has just finished up what might be the first Wii U laptop.

He’s using a 17″ laptop screen from a Dell XPS M1730, which he’s combined with a case of his own design that fits the Wii U’s guts. To interface the screen from the Wii, he picked up a driver-board from NJYtouch. He’s also managed to cram the power regulator into the laptop, and a few small speakers for audio output. He also integrated the sensor bar into the top of the unit. Not too shabby!

It reminds us a lot of this older Xbox 360 laptop mod, and looks surprisingly similar. However our favorite case mod still has to be the PlayBox — [Eddie Zarick’s] beautiful combination unit featuring an Xbox One and the PS4 in a single 22″ box.

[Thanks for the tip Jon!]

Multicopters and their MultiWii Beginnings

With more than five years down the road in this successful hack, [Alexinparis] and his pioneering Nintendo controller hack have been taking eager enthusiasts to the skies with homebrew multicopters armed with MultiWii firmware.

The MultiWii firmware, like most other glorious moments that gloss these pages, was as a hack, and a darn good one. By harvesting the (I²C-based) accel-gyro sensor package in a Nintendo Wii MotionPlus, [Alexinparis] developed control firmware for an Arduino Pro Mini, and, thus: the MultiWii Controller Board was born. With a successful WiiMotion Plus pcb extraction, an Arduino Pro Mini, and some help from the forums, the dedicated hobbyist could build their own flying platform with customizable firmware enabling bi, tri, quad, hex, octo, Y6, and Y4 propeller configurations.

With a working flight controller, [Alexinparis] sent his firmware skyward in a tricopter built from scratch. For a light-but-sturdy shell, he opted for a lost-foam cast hull made from fiberglass and carbon fiber tow. This hull houses most of the electronics safely inside the hollow shell while maintaining the strength to sustain heavy blows from crashes. (The version shown above features additional carbon fiber reinforcement in the center.)

multiwiiLostFoammultiwiiLostFoamHousingmultiwiiDone

More than five years later, MultiWii is a mature open-source project with firmware and wiki under constant update. If you’ve ever considered getting started with multicopters, this project stands as a tested-and-tried road to success. In fact, even RC vendor HobbyKing offers low-cost Multiwii PCBs compatible with the firmware. For more details on the project’s humble beginnings, head on over to the RC Groups thread and followup documentation thread.

We’ve seen MultiWii countless times in the past as the firmware in numerous multicopter builds. It’s about time we give [Alexinparis] some well-deserved credit for paving the way.

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