Author Archives: Adam Fabio

Decimal Time Clocks in under 1 kB

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Humans historically have worked well with decimal numbering systems. This is probably due to the fact most of us have ten fingers, which make counting in base ten easy. Yet humanity seems to doggedly stick to the odd duodecimal/sexagesimal time system. [Danjovic] is bringing a bit of sanity into the mix with a decimal clock he calls DC-10. He’s entered his clock into our 1 kB Challenge.

DC-10 builds upon C10, the decimal time display system created by [KnivD] on Hackaday.io.

In [KnivDHere how it works:

  • 1 year = 365.25 days (we can’t change this anyway)
  • 1 day = 100

…read more

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Dawn of the Tripteron 3D Printer

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Cartesian 3D printers were the original. Then delta printers came along, and they were pretty cool too. Now, you can add tripteron printers to the mix.  The tripteron is an odd mix of cartesian and delta. The system was invented at the robotics laboratory at Université Laval in Quebec, Canada. The team who created it say that it is “isotropic and fully decoupled, i.e. each of the actuators is controlling one Cartesian degree of freedom, independently from the others.” This means that driving the bot will be almost as simple as driving a standard X/Y/Z Cartesian printer. The corollary to …read more

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Dawn of the Tripteron 3D Printer

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Cartesian 3D printers were the original. Then delta printers came along, and they were pretty cool too. Now, you can add tripteron printers to the mix.  The tripteron is an odd mix of cartesian and delta. The system was invented at the robotics laboratory at Université Laval in Quebec, Canada. The team who created it say that it is “isotropic and fully decoupled, i.e. each of the actuators is controlling one Cartesian degree of freedom, independently from the others.” This means that driving the bot will be almost as simple as driving a standard X/Y/Z Cartesian printer. The corollary to …read more

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3D Printed R/C Lifeboat

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Radio control boats usually bring up thoughts of racing catamarans, or scale sailing yachts. This build takes things in a slightly different direction. A radio controlled lifeboat with a built-in First Person View (FPV) transmitter. [Peter Sripol] used to be one of the awesome folks over at Flite Test. Now he’s gone solo, and has been cranking out some great builds on his YouTube channel. His latest build is a lifeboat loosely based on the totally enclosed lifeboats used on oil tankers and other seafaring vessels.

[Peter] designed the boat in 3D modeling software and printed it on his Lulzbot …read more

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Step Up to the 1 kB Challenge

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1 kilobyte. Today it sounds like an infinitesimally small number. Computers come with tens of gigabytes of ram, and multiple terabytes of storage space. You can buy a Linux computer with 1 gig of RAM and secondary storage as big as the SD card you throw at it. Even microcontrollers have stepped up their game, with megabytes of flash often available for program storage.

Rapidly growing memory and storage are a great testament to technology marching forward to the beat of Moore’s law. But, we should be careful not to forget the techniques of past hackers who didn’t have so …read more

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Enlightened Raspberry Pi Contest Winners

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The Enlightened Raspberry Pi Contest wrapped up last week. As soon as the contest closed, Hackaday’s crack team of judges jumped on the case. Every entrant was carefully reviewed.  This was no easy feat! The field of 168 projects included both new concepts and old favorites. All of them were designed, built and documented with care. After all the votes were counted, 8 finalists rose to the top and were sent to [Matt Richadrson], [Ken Shirriff], and [Alvaro Prieto], our VIP judges, for the final ranking.

Each and every project creator deserves recognition for not only building an awesome project, …read more

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Bending the Light

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Everyone knows you can’t visibly bend light over short distances in free air. Or can you? [Jack Pearse] has figured out a way to do it though, or at least make it appear that way. He does it by combining a trick of math and a trick of the eye. The secret is the hyperboloid, a geometric construct described by a quadratic equation. [Jack’s] creation is more specifically a hyperboloid in one sheet. This type of structure allows straight lines to create a an overall curved surface.  Hyperboloids have been used by architects and in construction for years, often in  …read more

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Keep Tabs on the Weather with rpi_status

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[Facelessloser] is interested in glanceable information. Glancable devices are things like your car’s dashboard, your wristwatch, or widgets on a smartphone lockscreen. The glanceable information distribution system in this case is rpi_status, [facelessloser’s] entry in the Enlightened Raspberry Pi Contest.

[Facelessloser] coupled a ring of eight WS2812 RGB LEDs with a small OLED screen managed by a the common ssd1306 controller. Since he was rolling his own board for this project, [faceless] some buttons and a BMP180 temperature sensor. Going with popular parts like this meant libraries like the Pimoroni unicorn hat library for the WS2812 were readily available.

A …read more

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Win Loot with the Enlightened Raspberry Pi Contest

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Have an awesome Raspberry Pi project in mind (or maybe sitting on your bench right now)? Show it off for the Enlightened Raspberry Pi contest and you can score some excellent loot.

The Raspberry Pi has changed the face of experimental computers. These little $35 Linux powered boards can do incredible things. An active community has sprung up around the Pi. With it have come thousands of projects published on the web, in books, and in magazines. Many of the best Raspberry Pi projects are seen right here on Hackaday and published on Hackaday.io, which boasts over 1000 user created …read more

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Hacklet 126 – Teensy Projects

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The Arduino has proved to be a great platform for electronics projects. The same goes for the Raspberry Pi. However, there are some projects that fall in the gap between these two options. Projects that need more memory or processing power than the ATmega microcontrollers have to offer, but not so much as to require a full Linux/ARM powerhouse. For those projects, there is the Teensy series. [Paul Stoffregen] created these lilliputian boards, and he’s been adding features ever since. The thousands of Teensy projects out there stand as proof that these little boards have been well received by the …read more

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