Subscribe: Hack a Day
http://19cgps.hackaday.com/rss.xml
Added By: Feedage Forager Feedage Grade B rated
Language: English
Tags:
coil  flip  laser pan  laser  linux product  linux  make  measure  module  pan tilt  product linux  product  quad core  read  tachometer 
Rate this Feed
Rate this feedRate this feedRate this feedRate this feedRate this feed
Rate this feed 1 starRate this feed 2 starRate this feed 3 starRate this feed 4 starRate this feed 5 star

Comments (0)

Feed Details and Statistics Feed Statistics
Preview: Hack a Day

Hackaday



Fresh hacks every day



Last Build Date: Sat, 24 Feb 2018 16:28:24 +0000

 



Microchip Introduces Tiny Cheap Linux ModulesMCHIPboardbrianbenchoff

Sat, 24 Feb 2018 15:00:00 +0000

Linux is in everything these days, and that means designers and engineers are crying out for a simple, easy-to-use module that simplifies the design of building a product to do something with Linux. The best example of this product category would probably be the Raspberry Pi Compute Module, followed by the C.H.I.P. Pro and its GR8 module. There are dozens of boards with Allwinner and Mali chips stuffed inside that can be used to build a Linux product, and the ‘BeagleBone on a Chip’ is a fantastic product if you need Linux and want to poke pins really, really fast. …read more


Media Files:
http://0.gravatar.com/avatar/cfdb118f461bac921cec1c793b76837e?s=96&d=https%3A%2F%2F0.gravatar.com%2Favatar%2Fad516503a11cd5ca435acc9bb6523536%3Fs%3D96




You’ve Never Seen A Flipping Eyeball Like This One!flip-eye-featuredjennylist

Sat, 24 Feb 2018 12:00:00 +0000

Inspired by some impressive work on textile flip-bit displays, and with creative steampunk outfits to create for Christmas, [Richard Sewell] had the idea for a flippable magnetic eye in the manner of a flip-dot display. These devices are bistable mechanical displays in which a magnet is suspended above a coil of wire, and “flipped” in orientation under the influence of a magnetic field from the coil.

In [Richard]’s case the eyeball was provided by a magnetic bead with a suitable paint job, and the coil was a hand-wound affair with some extremely neat lacing to keep it all in place. …read more


Media Files:
http://1.gravatar.com/avatar/1a2e669050b49124743bbbe2a7938643?s=96&d=https%3A%2F%2F1.gravatar.com%2Favatar%2Fad516503a11cd5ca435acc9bb6523536%3Fs%3D96




Tachometer Uses Light, Arduinosmainbryancockfield

Sat, 24 Feb 2018 09:00:00 +0000

To measure how fast something spins, most of us will reach for a tachometer without thinking much about how it works. Tachometers are often found in cars to measure engine RPM, but handheld units can be used for measuring the speed of rotation for other things as well. While some have mechanical shafts that must make physical contact with whatever you’re trying to measure, [electronoobs] has created a contactless tachometer that uses infrared light to take RPM measurements instead.

The tool uses an infrared emitter/detector pair along with an op amp to sense revolution speed. The signal from the IR …read more


Media Files:
http://2.gravatar.com/avatar/56f14818df4f9829acde7721c3d72054?s=96&d=https%3A%2F%2F2.gravatar.com%2Favatar%2Fad516503a11cd5ca435acc9bb6523536%3Fs%3D96




Robotic Laser Keeps Cat Entertained While You HackCat laser on a pan-tilt robotstevenduf

Sat, 24 Feb 2018 06:00:00 +0000

Whether it’s our own cat or a neighbor’s, many of us have experienced the friendly feline keeping us company while we work, often contributing on the keyboard, sticking its head where our hands are for a closer look, or sitting on needed parts. So how to keep the crafty kitty busy elsewhere? This roboticized laser on a pan-tilt mechanism from the [circuit.io team] should do the trick.

The laser is a 650 nm laser diode mounted on a 3D printed pan-tilt system which they found on Thingiverse and modified for attaching the diode’s housing. It’s all pretty lightweight so two …read more


Media Files:
http://1.gravatar.com/avatar/d2e4e7801ebccfd02a95327153fc7976?s=96&d=https%3A%2F%2F1.gravatar.com%2Favatar%2Fad516503a11cd5ca435acc9bb6523536%3Fs%3D96




Stretched PC Case Turned GPU Cryptominercryptpc_feattomnardi

Sat, 24 Feb 2018 03:00:40 +0000

We don’t do financial planning here at Hackaday, so we won’t weigh in on the viability of making money mining cryptocurrency in such a volatile market. But we will say that if you’re going to build a machine to hammer away at generating Magical Internet Monies, you might as well make it cool. Even if you don’t turn a profit, at least you’ll have something interesting to look at while you weep over your electricity bill.

Sick of seeing the desktop machine he built a decade ago gathering dust, [plaggle24w5] decided to use it as the base for a cryptocurrency …read more


Media Files:
http://hackadaycom.files.wordpress.com/2018/02/cryptpc_detail1.jpg?w=320




Tiny Quad Core Module Available Soonn5wd5gnr1

Sat, 24 Feb 2018 00:00:10 +0000

We get a lot of new product announcements here at Hackaday, and we run across even more. As excited as a manufacturer might be about their latest Raspberry Pi killer or cheaper Arduino clone, we usually don’t have much to say about new products unless there is something really interesting about them. Our attention was piqued though when we saw the Neutis N5. Shipping in April, the device packs a quad-core ARM processor running at 1.3 GHz with 8 GB of flash memory and 512 MB of RAM, has an extended temperature range, WiFi (802.11N), and Bluetooth (including BLE). There’s …read more


Media Files:
http://2.gravatar.com/avatar/873254e5b4d82165d02a6c077328d23c?s=96&d=https%3A%2F%2F2.gravatar.com%2Favatar%2Fad516503a11cd5ca435acc9bb6523536%3Fs%3D96




3D Printing Brings a Child’s Imagination to Lifecurv_feattomnardi

Fri, 23 Feb 2018 21:00:27 +0000

Telling somebody that you’re going to make their dreams come true is a bold, and potentially kind of creepy, claim. But it’s one of those things that isn’t supposed to be taken literally; it doesn’t mean that you’re actually going to peer into their memories, extract an idea, and then manifest it into reality. That’s just crazy talk, it’s a figure of speech.

As it turns out, there’s at least one person out there who didn’t get the memo. Remembering how his father always told him about the elaborate drawings of submarines and rockets he did as a young boy, …read more


Media Files:
http://hackadaycom.files.wordpress.com/2018/02/curv_detail2.jpg?w=400