Ferrofluid Clock is a Work of Art

It is not usually too difficult to separate functionality from art. Consider a clock. It’s a machine that has a clear and distinct function. It provides information. Nothing could be more different from a clock on a wall than a piece of artwork.  A painting, for instance has no clear function and provides no information. It’s just…art. It’s nice to look at. If we were to ask you to build a functioning, information providing clock that is also a piece of artwork, you would surely have your hands full. Where would you even start? If your name was [Zelf Koelma], you’d grab a bottle of ferrofluid and build us a beautiful, almost mesmerizing clock.

clock_01There’s little to no information on the details of how the clock works other than the use of ferrofluid. But it’s not hard to guess that it uses dozens of electromagnets and an Arduino. You can even pick one up for a cool $8,300 if you’re lucky enough to get a spot on the list, as he’s only making 24 of them.

Want to make one of your own? Pick up some ferrofluid and keep us updated. We’d love to hear from you in the comments on how you’d implement a build like this one. We had a fun time hearing your ideas when we covered the clock made of clocks.

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Mechanical Watch Hacker Gets an Apple Watch

Mechanical watch enthusiasts see the Apple watch as a threat to the traditional gear train. It does not tick, requires frequent re-charging, and it’s certainly not the most attractive of watches. But it can direct you to the local coffee shop, allow you to communicate with friends anywhere in the world, get you onto an airplane after the most awkward of arm gestures, and keep you apprised of the latest NCAA basketball scores. Is the advent of the smart watch the end to the mechanical watch?
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Cute Countdown Timer Reminds you of Impending Doom

As things get busy, whether it be an upcoming product launch, a pregnancy, or even the release of your favorite game (or movie!) sometimes it’s nice to have a little countdown timer. Not an app on your phone, but a tangible, physical timer to set on your desk. Which is why SevenSeg is such a cute idea.

[Mohit] wanted to design something that was simple, but aesthetically pleasing — he’d seen free-form electronic projects before and wanted to give it a shot. What he came up with is pretty elegant! A seven segment display is connected via 1/32″ brass rods to the controller, a Particle Photon — which is kind of like a Teensy with WiFi for the internet of things. After putting a few resistors in line with the display, and a bit of frustrating bending of wire later, and SevenSeg was complete.

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Everything You Wanted to Know About Oscillators

Ever wonder how a crystal oscillator works? How does that little metal can with a sliver of quartz start vibrating to produce a clock signal for just about everything we use, while doing it in the accuracy range in the parts per million and cost practically nothing?

Well [Craig] decided its about time for an in depth tutorial  that covers everything you need to know to understand, design, and construct your very own. Wrapped up in a 41 minute video, [Craig]  covers the absolute basic theories and designs, math, datasheet explanation of crystals, and even a practical example of a Pierce crystal oscillator, suitable for use in a HF transceiver. Now you can make your own for your own application no matter if you’re just trying to save a pin on your favorite micro, or making a radio transceiver.

With this wealth of knowledge, whether you are learning for the first time, or just need a refresher, you should join us after the break, kick back and check out this highly informative video.

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Scrappy RGB Binary Clock From The Parts Bin

Sometimes you just want to make something, and not spend any money doing it. That’s what [Evan] had in mind when setting out to make this cool RGB LED binary Clock.

The project box is made from scrap pieces of balsa wood, with the front being a scrap of acrylic.  Multiple layers of the balsa wood were glued up to thickness and drilled to hold the LED’s, some paper was added on top then the acrylic to give everything a frosty diffused look.

LED’s are controlled by the good ‘ol 74HC595 serial to parallel shift register, and a ATTiny84 micro all set on scraps of perf board [Evan] had kicking around. Time is kept by an off the shelf RTC module and everything is point to point wired together .

Once the glue dried and a lid added, [Evan] has a colorful and fun looking 4 bit per digit binary clock that always takes us a few moments to read.

Unusual Nixie Tubes Lead to Unique Clock

There’s no doubting the appeal of Nixie tubes. The play of the orange plasma around the cathodes through the mesh anode and onto the glass envelope can be enchanting, and the stacking of the symbols in the tube gives a depth to the display that is unlike any other technology. So when [Ian] found a set of six tubes on eBay at a fire sale price, he couldn’t resist picking them up and incorporating them into a unique but difficult to read Nixie clock.

It turns out the set of tubes [Ian] ordered were more likely destined for a test instrument than a clock, displaying symbols such a “Hz”, “V” and “Ω”. Initially disappointed with his seemingly useless purchase, [Ian] put his buyer’s remorse aside and built his clock anyway. Laser-cut acrylic, blue LEDs under the tube for a glow effect, a battery-backed RTC talking to an ATmega328, and the appropriate high-voltage section lead to a good-looking and functional clock, even if [Ian] himself needs a cross-reference chart to read the time. You’ll be able to figure out at the whole character set after watching the video after the break; spoiler alert: sensibly enough, Ω maps to 0.

We’ve seen lots of Nixie projects before, but few as unique as [Ian]’s clock.

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Instrument Cluster Clock Gets The Show On The Road

While driving around one day, [Esko] noticed that the numbers and dials on a speedometer would be a pretty great medium for a clock build. This was his first project using a microcontroller, and with no time to lose he got his hands on the instrument cluster from a Fiat and used it to make a very unique timepiece.

The instrument cluster he chose was from a diesel Fiat Stilo, which [Esko] chose because the tachometer on the diesel version suited his timekeeping needs almost exactly. The speedometer measures almost all the way to 240 kph which works well for a 24-hour clock too. With the major part sourced, he found an Arduino clone and hit the road (figuratively speaking). A major focus of this project was getting the CAN bus signals sorted out. It helped that the Arduino clone he found had this functionality built-in (and ended up being cheaper than a real Arduino and shield) but he still had quite a bit of difficulty figuring out all of the signals.

In the end he got everything working, using a built-in servo motor in the cluster to make a “ticking” sound for seconds, and using the fuel gauge to keep track of the minutes. [Esko] also donated it to a local car museum when he finished so that others can enjoy this unique timepiece. Be sure to check out the video below to see this clock in action, and if you’re looking for other uses for instrument clusters that you might have lying around, be sure to check out this cluster used for video games.

The mechanics in dashboards are awesome, and produced at scale. That’s why our own [Adam Fabio] is able to get a hold of that type of hardware for his Analog Gauge Stepper kit. He simply adds a 3D printed needle, and a PCB to make interfacing easy.

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