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This drone swarm spray painted a jumbo-size graffiti mural – TechCrunch

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It’s Friday, so why not watch some good old-fashioned drone-powered graffiti? A design firm in Italy has put together a lovely little show that collected sketches from the art community and put them all together in a giant mural, painted over 12 hours by a team of drones.

We’ve seen spray-painting drones before, of course, but this is far better than the crude vandalism of a fashion billboard or even Disney’s more structured wall drawings. These drones actually put together something worth looking at!

The Urban Flying Opera project was curated by Carlo Ratti Associati, which collected some 1,200 small illustrations via an app, selecting 100 to assemble into a single mural. The line drawings were then loaded into a central control computer and painting instructions relayed to a set of four drones equipped with paint cans, which worked over a 12-hour period to put the whole thing together.

drones paintingufo drones

Each drone, provided by Tsuru Robotics (it’s partly a promotion for the company) was operating as part of a whole, with multiple position monitoring systems making sure they didn’t accidentally bump into one another. No second chances when you’re spray painting a white wall.

The mural is 46 feet wide and 39 feet tall, and each color layer, laid on separately, represents a different aspect of the community the project is trying to highlight.

“The city is an open canvas, where people can inscribe their stories in many ways. Such processes have always been happening; however, with UFO we tried to accelerate them, using drone technology to allow for a new use of painting as a means of expression,” CRA founder Carlo Ratti told New Atlas.

It’s still nowhere near the level of fidelity you see in serious graffiti and street art, but it’s clear that drone-based spray painting is becoming a viable method rather than a lark. Perhaps even future drone-based vandalism will be of higher quality!

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Still can’t buy a Raspberry Pi board? Things aren’t getting better anytime soon

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Raspberry Pi Foundation

Shortages for lots of tech components, including things like DDR5 and GPUs, have eased quite a bit since the beginning of 2022, and prices have managed to go down as availability improves. But that reprieve hasn’t come for hobbyists hoping to get a Raspberry Pi, which remains as hard to buy today as it was a year ago.

The most recent update on the situation comes from Raspberry Pi founder Eben Upton via YouTuber Jeff Geerling—Upton told Geerling that Pi boards are subject to the same supply constraints since the last time he wrote a post about the situation in April. Around 400,000 Pi boards are still produced per month, and some of these are being earmarked to be sent out to consumer retail sites. But Upton says that most of these are still being reserved for and sold to commercial customers who rely on Pi boards to run their businesses.

In short, the update is that there is no update. Upton said in April (and nearly a year ago, when the company raised the price for a Pi board for the first time) that the Broadcom processors at the heart of older Pi boards have been particularly difficult to source, but that high demand had been just as big an issue. Demand for Pi boards increased during the pandemic, and there was no more manufacturing capacity available to meet this demand. Upton said a year ago that there were “early signs that the supply chain situation is starting to ease,” but backed-up demand could still explain the short supply even if the Pi’s components have gotten easier to buy.

If you’re trying to buy a Raspberry Pi in the US or other regions, the rpilocator spreadsheet can be a valuable resource, letting you know when various models are in stock for ordering at most common Pi retailers. According to the tracker, few Pi 4 boards of any stripe were available to buy through September, though, and if you’re looking for a specific RAM capacity, you will be stuck waiting even longer. Businesses that want to inquire about buying Pis are still encouraged to contact the business@raspberrypi.com email address to make their case.

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Google prototypes, open sources an extra-long keyboard with one row of keys

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Enlarge / Google Japan jokes that you can increase productivity by having two people type on the keyboard simultaneously.

Google Japan has a history of joke keyboard concepts that challenge common notions of computing input. The latest concept, the Gboard Stick Version, places every key in the same row, so hunting and pecking can take a more linear approach.

As shown in Google Japan’s YouTube video below, it appears Google Japan actually prototyped the lengthy keyboard. Google will not be mass-producing or selling it, but there are GitHub files available with open source firmware, circuit diagrams, and design drawings to build the keyboard yourself. The GitHub page is careful to note that “this is not an officially supported Google product.” Google Japan’s blog post from Saturday said you could make the Gboard Stick Version with a 3D printer.

Google Japan’s video for the Gboard Stick Version.

As designed, the keyboard is an extraordinary 5.25 feet (1,600 mm) longIf you think that’s lengthy, the company said the original prototype was 7.87 feet (2,400 mm) long. The keyboard uses 17 boards total, including 16 for mounting the keys and a control board.

Google Japan jestingly argues that this design is more convenient for cluttered desks, storage, and finding the right keys when typing. Google Japan’s video shows the keyboard with an alphabetical layout, as a user initiates touch typing by memorizing the distance of individual keys from the left border. Alternatively, it’s ‘easy’ to find P, for example, knowing that it’s the 17th key in from the left (the first key from the left is a search button, not A). Surely, this is all simpler than hunting and pecking up, down, left, and right on a traditional keyboard layout.

Google Japan’s page for the keyboard also suggests you can use it with a QWERTY or ASCII code layout.

Google Japan also pointed to the keyboard's single row simplifying cleaning.
Enlarge / Google Japan also pointed to the keyboard’s single row simplifying cleaning.

Many detailed use cases for this one-row keyboard are clearly jokes, from using it to measure your kid’s height and get items dropped behind the couch, to using it as a walking stick, or the “bug-fixing module,” aka net, that turns the keyboard into a bug catcher in case you encounter bugs when coding (get it?).

But one purported benefit we could actually get behind is how much personal space the keyboard naturally enforces in the office and beyond:

The keyboard looks to be a natural safe-distance buffer for those who have to return to the office.
Enlarge / The keyboard looks to be a natural safe-distance buffer for those who have to return to the office.

Google Japan’s outlandish keyboard concepts have been going on for years as a way to promote Google’s Gboard keyboard app. Past iterations have included the Gboard Teacup Version and Gboard Spoon Bending Version.

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The Pixel 6a for $350 ($100 off) makes for an incredible deal

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The Pixel 7 might be arriving this week, but if you’re not interested in any of that newfangled flagship stuff, have we got a deal for you! The Pixel 6a, Google’s cheaper, simpler smartphone, is on sale at Amazon and Best Buy for $100 off. That makes for a pretty incredible $349 price tag instead of the normal $449. If you don’t count bundling deals that require signing up for a new phone line, this is the lowest price we’ve seen the phone at.

The Pixel 6a is a dead simple 6.1-inch phone that covers all the basics. It has a 6.1-inch 1080p, 60 Hz display, 6GB of RAM, 128GB of storage, and a 4410 mAh battery. The phone has nearly every feature you could want, including an in-screen fingerprint reader, IP67 dust and water resistance, NFC, and Wi-Fi 6e compatibility. The biggest downside is that there’s no wireless charging. The headline feature is the flagship-class SoC, the same Google Tensor chip you get in the Pixel 6, but for a low (and now even lower) price. The Tensor won’t win any benchmark wars, but at this price, the only other comparable device is the iPhone SE.

As for why you might hold out a bit and get the Pixel 7 instead, you’d be getting a major screen upgrade if you buy the (probably $900) Pixel 7 Pro, which will pack a 6.7-inch 120 Hz display. You’d also be doubling the RAM (12GB) and upgrading the camera setup from the ancient IMX 363 sensor that powers the Pixel 6a. That would be more than double the price of this phone. though. Like we said in our review, if you’re not a phone snob (guilty), the Pixel 6a is the perfect phone for normal people.

Ars Technica may earn compensation for sales from links on this post through affiliate programs.

Listing image by Ron Amadeo

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