Robots Chase Down Balls In Fun Outdoor Game

September 22, 2022 by Lewin Day 1 Comment

Art installations aren’t always about static sculpture or pure aesthetics. In the case of Operation Kiba, they can be fun games for everyone to enjoy.

The aim of Operation Kiba is for the players to collect all the “balls” on the playing field, which are intended to represent scoops of ice cream. Collecting the balls is done via robot. Each player is ostensibly tasked with collecting one color of ball or the other, but players often decide to work together in harmony instead. The balls are released at the start of the game by tipping over a big bowl. This is half the fun, and is achieved by tugging a string which upends the vessel and scatters the balls.

The remote-control robots themselves come from an earlier art installation the group built called Bubble Blast. They’re built using a 3D printed chassis, with wheels on each side driven by DC gear motors. With tank-style steering, they can rotate on the spot, providing good maneuverability. An Arduino Nano runs the show, receiving commands over a 433 MHz radio link. Power is via DeWalt cordless drill batteries, and the robots are controlled via arcade sticks. They’re color-coded to match the balls in the game.

As far as art installations go, it may not be fancy or pretentious, but it certainly looks like a lot of fun. We’re sure it could eventually guide many players towards the exciting world of antweight combat robotics. Video after the break.

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Shot of CubeTouch, a six sided cube built out of PCBs with each of the top PCB allowing for diffusion of the LEDs on the inside to shine through

Keyboard Shortcuts At The Touch Of A Planetary Cube

September 19, 2022 by Abe Connelly 3 Comments

[Noteolvides] creates the CubeTouch, a cube made of six PCBs soldered together that creates a functional and interactive piece of art through its inlaid LEDs and capacitive touch sensors.

The device itself is connected through a USB-C connector that powers the device and allows it to send custom keyboard shortcuts, depending on which face is touched.

The CubeTouch is illuminated on the inside with six WS2812 LEDs that take advantage of the diffusion properties of the underlying FR4 material to shine through the PCBs. The central microprocessor is a CH552 that has native USB support and is Arduino compatible. Each “planet” on the the five outward facing sides acts as a capacitive touch sensor that can be programmed to produce a custom key combination.

Assembling the device involves soldering the connections at two joints for each edge connecting the faces.

We’re no strangers to building enclosures from FR4, nor are we strangers to merging art and functionality. The CubeTouch offers a further exploration of these ideas in a sweet package.

The CubeTouch is Open Source Hardware Certified with all documentation, source code and other relevant digital artifacts available under a libre/free license.

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Glue-on nails with vinyl record pickups pierced through them that are used on a vinyl record

The Sound Of Nails On Black Vinyl Records

September 16, 2022 by Abe Connelly 32 Comments

[Victoria Shen] modifies glue-on nails to give her the ability to play vinyl records with her fingers. Details are light but from the many glamour pictures, it looks like she pushes record player needles through glue-on nails with thin pickup wire that then presumably goes to an audio jack for amplification.

[Victoria] experiments with novel musical tools for use in her art and performances. Be sure to check out the videos of the nails in action. The combination of “scratching” and ability to alter the speed of vinyl with the free fingers creates a weird and eerie experience.

Using her “Needle Nails”, [Victoria] has found she’s able to play multiple records simultaneously (Nitter). Thanks to the different diameters of 33, 78 and 45 vinyls, she’s able to stack them up while still keeping her fingers on them.

Glove like musical instruments are nothing new but the novel use of fashion, glamour and technology allow [Victoria Shen] the freedom to create something uniquely weird and cool, so much so that Beyonce used it in a video shoot for Vogue (Nitter).

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Big Noise From A 555 And A Little Embroidery

September 14, 2022 by Lee Wilkins 3 Comments

[Sam Topley] specializes in making textile based, electronic instruments and sculptures using embroidery, and this little hoop packs some serious sound (Nitter).

The circuit is a riff on a classic 555 timer circuit, which produces a signal that is modulated by applying pressure conductive textile in different ways. The signal is then piped through a system built in a visual coding interface called MaxMSP, which allows [Sam] to get specific on how to control it. The program shifts the pitch and applies filtering, producing a dynamic dial-up tone-like sound as the user interacts.

To top it off, [Sam] uses vintage resistors and tropical fish capacitors from the 60s that compliment the visual design and match the embroidery floss, they’re both beautiful and functional! This isn’t the only circuit of this kind [Sam] has made, she also produces tons of e-textile radios using similar techniques. We love how this project spans a ton of areas, analog circuitry, vintage tech, and soft circuits!

While we don’t see too many projects involving them come our way, e-textiles are certainly a fascinating topic. Our coverage of 2018’s “eTextile Spring Break” in New York is a must-read if you’re interested in exploring this technology, and the relatively recent news that MIT has developed a washable LED fabric has us hoping we’ll see more projects like this in the near future.

Engraving A Puzzle Box? Here’s A Collection Of Single-Line Cryptex Fonts

September 11, 2022 by Donald Papp 2 Comments

Here’s a neat resource from [MSRaynsford] that is worth bookmarking for anyone who gets creative with laser engravers, CNC routers, or drawing robots: SVGFonts are single-line symbol fonts that [MSRaynsford] created for his laser-cut and engraved cryptex puzzle boxes. They provide an easy way to engrave text as symbols.

Single-line fonts for engraving that include a runic-looking alphabet, a Greek-inspired set, and two symbol sets based on Flag Semaphore.

CNC engraving of letters and symbols is one of those things that seems simple, but is actually more complex than it may appear. It is often desirable to use a tool to engrave symbols with a single line, in much the same way a person would write them if using a pen. But fonts and art for letters and numbers aren’t normally a single line. Thankfully there is a solution in the form of Hershey text, an extension for which is included in Inkscape. It turns out that Hershey Fonts have their origin back in the 1960s, when the changing landscape of electronics and industry opened new opportunities and demanded new solutions.

That’s why, when [MSRaynsford] needed fonts in different styles and symbols for creating his puzzle boxes, he had to design them himself and they had to be single-line vector art, just like Hershey Text. The small collection includes English letters designed to resemble a runic alphabet, a Greek-inspired series, and two coded alphabets based on flag semaphore.

Grab ’em on GitHub, because you never know when you’ll need to make a quick cryptex.

Solar Cells As Art Form

August 31, 2022 by Bryan Cockfield 10 Comments

When most of us approach a project, we have a certain problem to solve. 3D printing, microcontrollers, batteries, and all kinds of technologies are usually tools to accomplish some task. This is not necessarily true in the art world, though, where the intrinsic nature of these tools can be explored for their own sake rather than as a means to an end. The latest one that came across our desk is this light-powered sound generator.

The art piece looks a bit like a mobile with rotating arms, holding various small solar cells each connected to a speaker. As the arms pivot, the light falling on the cells changes which drives a specially-designed circuit connected to a speaker. The circuit acts as an oscillator, passing the changing voltage from the cell through various capacitors and transistors to produce changing tones in the speaker.

The effect of the rotating solar panels is not only oscillations from the speakers as the light changes, but oscillations in the sound of the speakers as they rotate towards and away from the observer. It’s a unique project and perfect for the art show it was in. It’s also not the only sound-focused art installation we’ve ever seen before, be sure to check out this one based on an ESP32.

Every Frame A Work Of Art With This Color Ultra-Slow Movie Player

August 19, 2022 by Dan Maloney 15 Comments

One of the more recent trendy builds we’ve seen is the slow-motion movie player. We love them — displaying one frame for a couple of hours to perhaps a full day is like an ever-changing, slowly morphing work of art. Given that most of them use monochrome e-paper displays, they’re especially suited for old black-and-white films, which somehow makes them even more classy and artsy.

But not every film works on a monochrome display. That’s where this full-color ultra-slow motion movie player by [likeablob] shines. OK, full color might be pushing it a bit; the build centers around a 5.65″ seven-color EPD module. But from what we can see, the display does a pretty good job at rendering frames from films like Spirited Away and The Matrix. Of course there is the problem of the long refresh time of the display, which can be more than 30 seconds, but with a frame rate of one every two hours, that’s not a huge problem. Power management, however, can be an issue, but [likeablob] leveraged the low-power co-processor on an ESP32 to handle the refresh tasks. The result is an estimated full year of battery life for the display.

We’ve seen that same Waveshare display used in a similar player before, and while some will no doubt object to the muted color rendering, we think it could work well with a lot of movies. And we still love the monochrome players we’ve seen, too.