New Part Day: An Open Source Ethernet Switch In The Palm Of Your Hand

April 21, 2020 by 92 Comments

When you can get a WiFi-enabled microcontroller for $3, it’s little surprise that many of the projects we see these days have ditched Ethernet. But the days of wired networking are far from over, and there’s still plenty of hardware out there that can benefit from being plugged in. But putting an Ethernet network into your project requires a switch, and that means yet another piece of hardware that needs to get crammed into the build.

Seeing the need for a small and lightweight Ethernet switch, BotBlox has developed the SwitchBlox. This 45 mm square board has everything you need to build a five device wired network, and nothing you don’t. Gone are the bulky RJ45 jacks and rows of blinkenlights, they won’t do you any good on the inside of a robot’s chassis. But that’s not to say it’s a bare bones experience, either. The diminutive switch features automatic crossover, support for input voltages from 7 V all the way up to 40 V, and management functions accessible over SPI.

If you want to get up and running as quickly as possible, a fully assembled SwitchBlox is available to purchase directly from BotBlox for £149.00. But if you’re not in any particular rush and interested in saving on cost, you can spin up your own version of the Creative Commons licensed board. The C++ management firmware and Python management GUI isn’t ready for prime time just yet, but you’ll be able to build a “dumb” version of the switch with the provided KiCad design files.

The published schematic in their repo uses a Microchip KSZ8895MQXCA as the Ethernet controller, with a Pulse HX1344NL supplying the magnetics for all the ports in a single surface mount package. Interestingly, the two images that BotBlox shows on their product page include different part numbers like H1102FNL and PT61017PEL for the magnetics, and the Pulse H1164NL for the Ethernet controller.

Make Networks Wired Again

There’s no question that WiFi has dramatically changed the way we connect devices. In fact, there’s an excellent chance you’re currently reading these words from a device that doesn’t even have the capability to connect to a wired network. If you’re looking to connect a device to the Internet quickly, it’s tough to beat.

But WiFi certainly isn’t perfect. For one, you have to contend with issues that are inherent to wireless communications such as high latency and susceptibility to interference. There’s also the logistical issues involved in making that initial connection since you need to specify an Access Point and (hopefully) an encryption key. In comparison, Ethernet will give you consistent performance in more or less any environment, and configuration is usually as simple as plugging in the cable and letting DHCP sort the rest out.

Unfortunately, that whole “plugging in” part can get tricky. Given their size, putting an Ethernet switch into your project to act as an internal bus only works if you’ve got space to burn and weight is of little concern. So as appealing as it might be to build a network into your robot to connect the Raspberry Pi, motor controllers, cameras, etc, it’s rarely been practical.

This little switch could change that, and the fact it’s released under an open source license means hackers and makers will be free to integrate it into their designs. With the addition of an open source management firmware, this device has some truly fascinating potential. When combined with a single board computer or suitably powerful microcontroller, you have the makings of a fully open source home router; something that the privacy and security minded among us have been dreaming of for years.

New Contest Puts PSoC Boards In The Hands Of 50 Entries

April 21, 2020 by 16 Comments

Today marks the beginning of the PSoC IoT design contest. Show us your idea for an interesting Internet-connected thing and we’ll send you a dev kit to actually build it.

With the help of Cypress, Digi-Key, and AWS IoT we’ll be sending out your choice of  PSoC 6 WiFi-BT Pioneer kit or Prototyping Kit to up to 50 entries just for publishing a great idea of something to build with them. As you guessed from the name, these provide WiFi and Bluetooth connectivity, but they’re also bristling with seven programmable analog blocks the PSoC is known for, and a hundred GPIO. They have prototyping add-ons like a 2.4″ screen for user interface, audio, IMU, capacitive touch, and a heap of other goodies.

You have until May 26th to post a project page on Hackaday.io outlining your idea — don’t forget to use that “Submit project to” button to enter it in the contest. Tells us all about the IoT project you want to build and which PSoC 6 board you plan to use. If your idea is picked, we’ll send you the dev board and you’ll have until August to actually build your idea. Grand Prize will receive a $500 prepaid Visa card, two runners up will each receive a $250 card.

Full details are available on the contest page. We know you’ve always wanted to give your fish a Twitter account, to have a dashboard that shows up-to-the minute stats on how much Boo Berry Cereal you have left, a beacon to give you push alerts when the laundry needs to make its way into the dryer, or perhaps you plan to build a new wave of Internet-connect pagers. Whatever it is, from a silly idea to a truly life-improving build, if it’s begging to spread its data far and wide, it’s a perfect idea for this contest.

Maker Therapy Joins The Fight Against COVID-19

April 21, 2020 by No comments

We love talking about makerspaces here at Hackaday. We love hearing about the camaraderie, the hacks, the outreach, the innovation, everything. Even more, we love seeing all the varying forms that makerspaces take, either in the hacks they create, the communities they reach out to, and especially their unique environments.

Recently, we came across Maker Therapy, a makerspace right inside a children’s hospital. Now, we’ve heard about hospital makerspaces here on Hackaday before, but what makes Maker Therapy particularly unique is it’s the first hospital makerspace that gives patients the opportunity to innovate right in the pediatric setting.

Inspired by patients and founded by Dr. Gokul Krishnan, Maker Therapy has been around for a few years now but recently popped up on our radar due to their unique position on the frontlines of the COVID-19 pandemic. As a makerspace located right inside a hospital, Maker Therapy is in the unique position to be the hospital’s very own rapid prototyping unit. Using 3D printing and other tools, Maker Therapy is able to make face shields and other important PPE right where they are needed the most.

Here at Hackaday, we salute and give our eternal gratitude to all the health care professionals fighting for our communities. Maybe some of your hacks and other designs could be used by initiatives like Maker Therapy? Until then, stay home and stay safe Hackaday. The only way we’ll get through this is together.

Searching For Alien Life With The Sun As Gravitational Telescope

April 21, 2020 by 19 Comments

Astronomy is undoubtedly one of the most exciting subjects in physics. Especially the search for exoplanets has been a thriving field in the last decades. While the first exoplanet was only discovered in 1992, there are now 4,144 confirmed exoplanets (as of 2nd April 2020). Naturally, we Sci-Fi lovers are most interested in the 55 potentially habitable exoplanets. Unfortunately, taking an image of an Earth 2.0 with enough detail to identify potential features of life is impossible with conventional telescopes.

The solar gravitational lens mission, which has recently been selected for phase III funding by the NASA Innovative Advanced Concepts (NIAC) program, is aiming to change that by taking advantage of the Sun’s gravitational lensing effect. Continue reading “Searching For Alien Life With The Sun As Gravitational Telescope” →

Rock Out With Toilet Paper Rolls

April 21, 2020 by 16 Comments

Singing in the shower is such a common phenomenon, rarely anyone ever bats an eye about it. Singing in the toilet on the other hand is probably going to raise an eyebrow or two, and it’s not for nothing that the Germans euphemistically call it “stilles Örtchen”, i.e. the little silent place. But who are we to judge what you do in the privacy of your home? So if you ever felt a lack of instrumental accompaniment, or forgot to bring your guitar, [Max Björverud] has just the perfect installation for you. (Video, embedded below.)

Inspired by the way bicycle computers determine your speed, [Max] took a set of toilet paper holders, extended each roll holding part with a 3D-printed attachment housing a magnet, and installed a Hall-effect sensor to determine the rolling activity. The rolls’ sensor data is then collected with an Arduino Mega and passed on to a Raspberry Pi Zero running Pure Data, creating the actual sounds. The sensor setup is briefly shown in another video.

Before you grab your pitchforks, [Max] started this project a little while back already, long before toilet paper became an object of abysmal desire. Being an artist in the field of interactive media, this also isn’t his first project of this kind, and you can find some more of his work on his website. So why of all things did we pick this one? Well, what can we say, we definitely have a weakness for strange and unusual musical instruments. And maybe there’s potential for some collaboration here?
Continue reading “Rock Out With Toilet Paper Rolls” →

Right To Repair: Tractor Manufacturers Might Have Met Their Match In Australia

April 21, 2020 by 60 Comments

The simmering duel between farmers and agricultural machinery manufacturers over access to the software to unlock the DRM which excludes all but the manufacturer’s agents from performing repairs goes on. How this plays out will have implications for the right to repair for everyone on many more devices than simply tractors. Events so far have centred on the American Midwest, but there is an interesting new front opening up in Australia. The Aussie government consumer watchdog, the ACCC, is looking into the matter, and examining whether the tractor manufacturers are in breach of the country’s Competition and Consumer Act. As ABC News reports there is a dual focus, both of the DRM aspect and on the manufacturer’s harvesting and lock-in of customer farm data.

This is an exciting turn of events for anyone with an interest in the right to repair, because it takes the manufacturers out of the comfort zone of their home legal environment into one that may be less accommodating to their needs. If Aussie farmers force them to open up their platforms then it will benefit all of us, but even if it fails, the fact that the issue has received more publicity in a different part of the world can only be a good thing. There are still tractor manufacturers that do not load their machines with DRM, how long will it be we ask before the easy repairability of their products becomes a selling point?

There are many stories relating to this issue on these pages, our most recent followed the skirmishes in Nebraska.

Thanks Stuart Longland for the tip.

Header image, John Deere under Australian skies: Bahnfrend (CC BY-SA 4.0).

Heavyweight Cyberdeck Is In A Class Of Its Own

April 20, 2020 by 24 Comments

Inspired by other builds he’d seen online, [BlastoSupreme] decided to build his very own cyberdeck. There was only one problem: he’d never designed and assembled anything like this before. Wanting to avoid any problems down the line, he reasoned that the safest approach would be to make it so big that he wouldn’t struggle to fit everything inside. Some may say the resulting NX-Yamato, named for the most massive battleship ever constructed, ended up being too large. But that’s only because they are afraid.

A finish like the Yamato’s doesn’t come easy.

In his write-up on The Cyberdeck Cafe, a site dedicated to the community sprouting up around these futuristic personal computers, [BlastoSupreme] describes building this cyberdeck as something of a transformative experience. Looking at the incredible effort that went into this project, we can believe it. From the intricate CAD work to the absolutely phenomenal finish on the Yamato’s 3D printed frame, there’s not a cut corner in sight.

That’s right, nearly every component of this cyberdeck was conjured into existence by squirting out hot plastic. About two kilograms of it, to be precise. It was printed in vertical chunks which were then assembled with adhesive and screws. This modular construction technique allowed [BlastoSupreme] to build what he believes to be the largest cyberdeck ever made. Sounds a lot like a challenge to us.

Admittedly, the massive internal volume of the Yamato is largely unused; all that’s inside it right now is a Raspberry Pi 4 and a X705 power management board that allows the deck to run off of 18650 cells. Of course, all that space could easily be put to use with additional gear or even a larger and more powerful Single Board Computer (SBC) such as the Atomic Pi. There’s even a dedicated compartment in the side for snacks, so no worries there. As [BlastoSupreme] puts it, all that empty space inside is a feature, not a bug.

Plenty of room inside for whatever hardware you want to take with you into the Sprawl.

In the nearly two years that have passed since we first came across one of these Neuromancer inspired builds, we’ve been absolutely blown away by the increasing scale and complexity of these extremely personal computers. Since it seems there’s only a fairly loose idea of what a “proper” cyberdeck should look like in the canonical sense, these builds have been free to fill in the blanks with some pretty outlandish designs. Some of which have earned William Gibson’s personal seal of approval.