Wii Nunchuk Gets a Built-in Raspberry Pi Zero

The Wii controller will likely go down in history as the hacker’s favorite repurposed input device, and there’s no question that the Raspberry Pi is the community’s top pick in terms of Linux single board computers. So it should come as little surprise that somebody has finally given us the cross-over episode that the hacking community deserves: the PiChuk, a Pi Zero inside of Nintendo’s motion-sensing “nunchuk”.

Veterans of Wii Sports might be wondering how the hero of our story, a hacker by the name of [keycaps], managed to pull off such a feat. The Pi Zero is small, but it’s not that small. The trick is that the case of the nunchuk has been extended by way of a new 3D printed bottom half.

There’s more than just a Pi Zero along for the ride, as well. [keycaps] has manged to sneak in a 750 mAh LiPo and an Adafruit Powerboost, making the device a completely self-contained system. Interestingly, the original nunchuk PCB remains more or less untouched, with just a couple of wires connected to the Pi’s GPIO ports so it can read the button and stick states over I2C.

We know you’re wondering why [keycaps] went through the trouble of breaking out the HDMI port on the bottom. It turns out, the PiChuk is being used to drive a Vufine wearable display; think Google Glass, but without the built-in computing power. The analog stick and motion sensing capabilities of the controller should make for a very natural input scheme, as far as wearable computers go.

So not only could the PiChuk make for an awesome wireless input device for your next project, it’s actually a pretty strong entry into the long line of wearable computing devices based on the Pi. Usually these have included a DIY version of the distinctive Google Glass display, but offloading that onto a commercially available version is certainly a lot easier.

The Smallest GameCube Is Actually A Wii

Casemodding, or stuffing video game consoles into shapes they were never meant to be in, is the preserve of a special breed. Our favorites are when old consoles are stuffed into different versions of the same console. Remember that gigantic O.G. Brick Game Boy carrying case? Yes, you can turn that into a jumbo-scale Game Boy, and it’s sweet. Continuining this trend of consoles of a different size, [Madmorda] has stuffed a GameCube into a sugar cube. It’s small. It’s really small, and it’s some of the best casemodding we’ve seen.

First off, the enclosure. This is an officially licensed micro GameCube case that originally housed gummy candies crafted by gummy artisans who work exclusively in the medium of gummy. This case, incidentally, is the perfect scale to match [Madmorda]’s earlier work, a miniaturized GameCube controller. This controller was originally a keychain, but with a bit of fine soldering skills it can indeed become a functional GameCube controller.

With the candy container GameCube gutted, the only task remaining was to put a GameCube inside. This is a lot easier if you tear down a Wii, and after desoldering, resoldering, and generally cutting up the circuit board of a Wii, [Madmorda] had something very small.

The finished console is a complete GameCube, compatible with all games, and no emulation. There are four controller ports, two USB ports for memory card slots, and output is composite through a 3.5mm jack. It’s a great piece of work and looks exactly like a miniaturized GameCube.

A Practical Portable Wii Emerges from the Memes

A few months ago, [Shank] built what will almost certainly go down in history as the world’s smallest portable Nintendo Wii. As it turns out, the Wii motherboard is home to a lot of unnecessary hardware, and with a careful hand and an eye for detail, it’s possible to physically cut it down to a much smaller unit; allowing this particularly tenacious hacker to put an actual Wii, along with everything else required to make it portable, into an Altoids tin.

As you might expect, between the cramped controls, comically short battery life, and the fact that the whole thing got hot to the touch during use, it was a miserable excuse for a portable console. But the incredible response the project received inspired [Shank] to dust off an earlier project: a far more practical portable Wii that he calls PiiWii. This time around the handheld is a more reasonable size, a useful battery life, and proper controls. It even has an integrated “Sensor Bar” so you can use real Wii Remotes with it. It might not be the prettiest portable console conversion we’ve ever seen, but it certainly ranks up there as one of the most complete.

[Shank] actually “finished” the PiiWii some time ago, but in his rush to complete the project he got a little overzealous with the hot glue and ended up with a device that was difficult to diagnose and fix when things started to go wrong. He shelved the project and moved on to his Altoids tin build, which helped him refine his Wii shrinking skills. With a clearer head and some more practical experience under his belt, the PiiWii was revamped and is clearly all the better for it.

Unlike previous Wii portables we’ve seen, there’s no attempt at adding GameCube controller ports or video out capability. It’s built to be a purely handheld system, and that focus has delivered a system that’s roughly the size of the original Game Boy Advance. Beyond the cleverly sliced Wii motherboard, the inside of the PiiWii features a 3.5 inch display, a custom designed audio amplifier PCB, four 3400 mAh cells which deliver a run time of around four hours, a 3DS “slider” analog stick, and a generous helping of Kapton tape in place of hot glue.

If there’s any criticism of the PiiWii, it’s likely going to be about the system’s boxy exterior. But as [Shank] explains, there’s an excellent reason for that: it’s literally built into a project box. He simply took a commercially available ABS project box, the Polycase SL 57, and made all his openings on the front with a laser cutter. Other than the fact taking a laser to ABS releases hydrogen cyanide, he found it a good way to quickly knock out a custom enclosure.

Last year we took a look his ridiculously small Altoids tin Wii, and while that was an impressive project to be sure, we’re glad he revisited the PiiWii and showed that a portable Wii can be more than just a novelty. Compared to other systems, the Wii doesn’t seem to get the portable treatment that often, so we’re always glad to see somebody come in and do the concept justice.

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World’s Smallest Wii is Also World’s Worst

As far as game consoles go, the Nintendo Wii was relatively small. Probably owing at least somewhat to the fact that it wasn’t a whole lot more than a slightly improved GameCube in a new case, but that’s another story entirely. So it’s not much of a surprise that people have modded Nintendo’s infamous money printing machine into handheld versions. But this…this is just something else.

We’re going to go out on a limb and say that this absolutely preposterous build by [Shank] which puts a fully functional Nintendo Wii into an Altoids tin wins the title of “World’s Smallest Wii”. We’re also going to put money on the fact that this record doesn’t get beaten because…well, come on. There’s a reason he’s named his diminutive creation the “Kill Mii”.

You’re probably wondering how this is possible. That’s an excellent question. As it turns out, hackers have discovered that you can cut off the majority of the Wii’s motherboard and still have a functioning system, albeit missing non-essential functions like the GameCube controller ports and SD card slot. From there, you just need to install a new firmware on the now heavily trimmed down Wii that tells it to ignore the fact it has no disc drive and load games as ISOs from an attached USB flash drive. That’s the high level summary anyway, the reality is that this a mod of crushing difficulty and should only be attempted by true masochists.

As for this particular build, [Shank] went all in and even relocated the Wii’s NAND chip to make everything fit inside the tin. There’s also custom PCBs which interface the Wii’s motherboard with the Nintendo 3DS sliders he’s using for control sticks. Underneath everything there’s a battery that can run the whole device for a grand total of about 10 minutes, but given the general shape of the “Kill Mii” and the fact that most of the buttons are tactile switches, that’s probably about as long as you’d want to play the thing anyway.

Yes, this is the worst Wii ever made. But that was also the point. In the words of the creator himself “This portable is not logical, comfortable, or practical. But it must be done… for the memes.” Truly an inspiration to us all.

Incidentally, this isn’t the first “trimmed” Wii portable we’ve seen; though that one was considerably more forgiving internally, and just a bit more practical.

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Digital Mouse Trap

Plenty of PC games rely on the mouse for input, and browser games are no exception. Unfortunately though, this isn’t always the most intuitive controller. [Nathan Ramanathan] combined a couple hacks to get the controller he wanted for playing browser games like Agar and Slither. No rodents were harmed in this project.

The games he wanted to dominate were top-down view so there was no need to move the mouse far from the center of the screen. For a more intuitive interface, a Wii nunchuck with its integrated joystick was selected. Nunchucks were notoriously hackable. An Arduino converted the nunchuck’s data into mouse movements. Inside the computer, Autohotkey kept the mouse pointer reined in where it was useful. Autohotkey was a scripting tool for executing keyboard and mouse macros.

The result was a joystick which controlled these browser games exactly the way you would expect a joystick to control a game. Mouse functionality, including standard and fast scrolling, was an added bonus so games like Minecraft aren’t left behind. The ergonomics of the nunchuck make us wonder why it hasn’t been seen in more wearable hacks.

Custom game controllers are no stranger to Hackaday readers. We’ve seen them built from LEGO blocks, automobiles, and even a decorative rug.

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A Wii U That Is Both Computer And Console.

Legendary sudomod forum user [banjokazooie] has once again demonstrated their prowess in Wii U console modification — this time by transforming it into a powerhouse portable computer!

We loved [banjokazooie]’s RetroPie Wii U mod, and happy to see them back again with this build.  What’s in this thing this time around? Buckle up ’cause it’s a ride: an Intel M5 processor core M on their Compute Stick, 4GBs RAM, a 64GB solid-state drive, a 2K LCD touchscreen, Bluetooth, WiFi, a 128GB SD card slot, two 3.7V 4000 mAh batteries, a Pololu 5V,6A step-down voltage regulator, a Teensy 2.0++ dev board, a battery protection PCB, a USB DAC sound card, stereo amp, a USB hub for everything to plug into, and a TP5100 battery charging board. Check it out!

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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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