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http://hackaday.com/2012/04/23...

This has been published April 2012, the provisional patent is from October 2012, so Makerbot wasted some time and money, by the look of it.

Depends; these days, you have to actually submit prior art evidence to the USPTO and someone there has to agree that it's prior art. Otherwise, the patent stands.

So even though "we" know there's prior art... has anyone submitted this to the USPTO?

http://hackaday.com/2012/04/23... This has been published April 2012, the provisional patent is from October 2012, so Makerbot wasted some time and money, by the look of it.

That 2.5 seconds would still more than kill any benefit you get from it. example

For those who are interested, there is another solution for DIY 'google glass'. Well, not glass, actually. The author calls it Raspberry Eye - a Borg-looking wearable computer based on RPi with 2.4" TFT LCD on a head strap mount http://hackaday.com/2014/04/20... and a submission on slashdot http://slashdot.org/submission...

Now try building almost an entire computer out of one kind of logic gate and a $#!+ ton of wires. But it still won't help you get on the Internet.

You don't need to simply imagine it:

http://hackaday.com/2013/05/21...

Complete with blinkenflashen!

Many imported, hand held multimeters are yellow. I've had one for close to 30 years that looks like the Fluke 87-v except it's all yellow. the entire case being yellow. Many brands of hand held meters were yellow quite some time ago.The meter in question does indeed look like the Fluke. However, Fluke is apparently doing the right thing. Below is Fluke's response to the situation. http://hackaday.com/2014/03/20...

At least not the smaller ones, people have built ones which brute force engine reversal and use symmetric propellers.

http://hackaday.com/2013/11/26...

Either an 8,500 euro transceiver http://www.cubesatshop.com/ind... or an SDR (Software Defined Radio) http://publik.tuwien.ac.at/fil... (or maybe the $18 receiver noted at http://sdr.osmocom.org/trac/wi... and http://hackaday.com/2012/06/27..., or a SoftRock TXRX http://fivedash.com/index.php?...), an upconverter/downconverter, dual circular polarized antennas, and an S-band broadband amp. See http://mdkenny.customer.netspa... for frequency specs. 73s and best regards, y'all, de K7AAY

One last bit of trivia: this isn't really news. I mean, I obviously find it cool, but seriously, 1960 was the discovery. Beta isn't bad enough, now they're altering the content too?

Perhaps they're trying to steal this awesome column from hackaday. I really wish they'd quite trying to make slashdot into something it's not...

amatuer hardware hacker
http://hackaday.com/

Since when has Hardware Engineering being incorrectly classed as "hacker"?

I cant stand it when the word "hack" is used by everyone, incorrectly, for everything. Its just insulting to their own intelligence.
I hacked my cup of coffee today, i added a sweetener instead of sugar, omg!......

If by "computer" you understand "general purpose / user programmable computer", then the differences are easy to explain. Neither the wi-fi card nor the smartphone have a built-in general purpose programming language/environment for the user to play with.

At least for android, downloading the sdk and running your first app on a phone is a matter of less than an hour (up to bandwidth limitations).

For the wifi card - well, it depends on your determination. It is possible to get root on the linux that runs on it, and since it has at least sh, you can program it.

A big advantage of the "old" technologies is that you can get them running with household items. It's impossible to built an integrated circuit at home, but it's quite feasible to build a steam engine. I learned a lot about technology by servicing my bicycle. I had a very old typewriter which was build on a completely different principle than the usual querty keys, it had a pointer which mechanically connected to a cylinder with the letters and only one key which caused the cylinder to hammer down on the carbon ribbon and the paper. Just to see that there are many different solutions to a given problem greatly increases your understanding of technology. So yes, I think you missed out greatly. All you had was magical black boxes which somehow did what you wanted them to do.

Don't be so sure about that

At Hackaday we're actually developing a solution that could work in your case. The concept behind this product is to minimize the number of ways your passwords can be compromised, while generating and storing long and complex random passwords for the different websites you use daily. It is designed to be as small as possible so it can fit in your pocket. The Mooltipass is composed of one main device and a smartcard. On the device are stored your AES-256 encrypted passwords. The smartcard is a read protected EEPROM that needs a PIN code to unlock its contents (AES-256 key + a few websites credentials). As with your credit card, too many tries will permanently lock the smart card. Therefore, you'd only need to share your PIN code with your husband/wife (5 to 6 numbers) And the whole project is open source.... http://hackaday.com/tag/developed-on-hackaday/

Turns out you can install linux on a transcend wifi SD card.

On a related note: Why am I not surprised that slashdot is months behind on this kind of thing and only report it when it becomes a slashvertisement?

Paul Tertuit says:
January 3, 2014 at 9:56 am

Why is it that every couple of years something catastrophic happens to the group that severely impacts their progress, and trivializes the hard work of many contributors? And, why does it *have* to be something that’s amplified by the group’s “quirky” management who are clearly out of their league?..

Why didn't you put your name to your comment here like you did on HaD?

Uh, did you look this up before making that claim?

http://hackaday.com/2013/01/09/unsigned-code-running-on-windows-rt/ indicates that no jailbreaking is necessary.

See also https://surfsec.wordpress.com/2013/01/06/circumventing-windows-rts-code-integrity-mechanism/

Some hard drive controllers contain three cores and are able to run linux:

http://hackaday.com/2013/08/02/sprite_tm-ohm2013-talk-hacking-hard-drive-controller-chips/
Complete with a program to eavesdrop any data read from the disk.

As far as anyone can tell, edX is surviving on investment money (such as this one). Schools join the consortium by putting up more investment money.

They're burning through this money with no clear business plan; specifically, they don't have a product to sell.

On top of this, edX at least seems unconcerned with the quality of their offerings. For example, their course offerings aren't searchable by keyword (that I can determine), you have to slog through the entire catalog to see if they have something with, for example, "neuroscience" in the title. Having found a neuroscience course, the introductory video tells the prospective student nothing about the course - it's completely useless.

Pointing this out to them, they said that there's nothing edX can do - Harvard is responsible for that course, and edX is only being used as a marketing vehicle.

Other players are making innovative changes in infrastructure and technique. None of this is happening at edX or Coursera - it's all videotaped traditional lectures. There's nothing that distinguishes the big MOOC product in a business sense; ie, nothing that says "our product is better for *this* reason".

As an outside observer, the big MOOC players appear to be living a bubble similar to the 2001 tech bubble: lots of hype with no clear business plan.

This won't replace a machine shop. It uses a MIG welder as an extruder, so precise tolerances aren't what this machine is for. Hackaday featured this yesterday, and they have a picture on the front page that may have come from an academic journal.

It might complement other equipment in a machine shop, though. It's also interesting to realize that this may work with other metals.

And if I wish to go one step further, I can hook into the screen's display and record the raw video directly too, resulting in a perfect copy.

Not easy to do.

HDMI Hack For those with the time and skills, not too hard.

It uses IR. See also: http://hackaday.com/?s=pulse+ox

The theory behind a pulse oximeter relies on the fact that hemoglobin absorbs red and infrared light differently based on its oxygenation levels. By shining a red and IR LED through a finger onto a photoresistor, it’s possible to determine a person’s blood oxygen level with just a tiny bit of math.

Gotcha. Regulatory issues aside, there are chips that do I/Q upconverting. I've always wanted to get one and play with it. They're actually becoming commodity hardware, potentially illegal as they may be.

This might put you in the right direction:
Software defined radio with a TV tuner card.

That'll get you into seeing what signals are out there. It would take another layer or two of software to find out what's on those signals though. It should be easy enough to get a rough idea where to go in that regard by looking at the waveforms.

What's the smallest etch resist you've been able to work with?

I don't make boards with my printer, my post was an overview of things other people are doing with the inkjet process. Google "inkjet PCB" will return lots of hobbyist sites that talk about it, such as this one.

I understand that laying down etch resist is a bit harder than my post would imply. The inkjet is accurate enough that the drops form a mosaic of circles with voids between, so the board has to be heated while printing (or after) to get the wax to flow-cover continuously. Also, prepping the board takes some experimentation to find the right method.

I use toner transfer, and can get roughly 8 mil traces, poorly. I haven't yet found the magical incantation to get good, high-quality traces with this method - or maybe I'm the only one looking at the results under a microscope. I suspect it depends heavily on the type of printer used.

Just yesterday I saw this telescope tracker. You need your own motors/gears (actually you need to build the whole thing yourself). Its low cost, and all the plans and software is there. Looking at stars is nice, looking at stars from a warm room by way of a high-res computer monitor is even nicer. You could even look at stars by way of a web interface. Now *that* is remote content.

Someone else had that same wish and decided to build it out, and out came Project Unity. It's fairly impractical, but I like watching the design process video.

Correction: It's dumb to make a proprietary mobile data transceiver for a car. Witness an entire generation of ONSTAR-equipped vehicles from just a few years ago that are now completely nonfunctional now that the analog cell network is decommissioned.

My next car will have a mobile data connection - I want the live traffic updates integrated with GPS without having to jury-rig a cellphone on the dash or have it lying loose in the car. Instead, I'll use the iDrive joystick to operate the GPS. The one thing I wish the car will have that none of them do is a standard mobile radio similar to the mini-PCIe interface in laptops, where if the wireless data standard is phased out, I could just upgrade the radio.

Contrary to what some are implying, mobile and embedded data and processor technology are showing NO signs of stabilizing - quite the opposite in fact, they are rapidly accelerating so it would be a tremendous breakthrough if automakers would standardize at least some components and software APIs.

On the software side, SAAB under Spyker was reputedly making huge strides in this arena, where they were going to roll out Android-equipped infotainment systems in the 9-3 and 9-5, and it would have had tremendous potential. Imagine not only being able to install Torque and create custom gauge themes, but going a step further and run something similar to the T8Suite, enabling you to create custom tune profiles, and then select between customized economy and aggressive tune profiles on the fly. A nice high PSI, high fuel rate and advanced ignition to take advantage of a turbocharger upgrade, then a very low boost profile (similar to their old LPT models) with a lean-burn mixture and retarded timing and adaptive shift points (or a shift light for us manual drivers) to maximize fuel economy without having to give up on-demand performance. Some might view the CAN/OBD integration as a security hole, but it's like having physical access to a Linux box - once you have physical access to the car (OBD port or software or otherwise) it's game over as far as security goes, so I'd consider it a feature. As far as direct control over the fuel, ignition, active suspension, ABS, etc. I don't think we'll ever be away from the individual embedded systems running those, with their being fed only values from lookup tables from the BCM (and a tune aside from engine component changes and hard hacks to an ECM and sensors really only modifies those lookup tables anyhow and if there is a fault the modules revert to an open-loop "limp mode" with default lookup values)

Besides, it's no less secure than electronic keys, which have been compromised on at least some makes.

Asteroids. Implemented in pure Arduino with no FPGA or any other special hardware.

Asteroids on Arduino

Sounds like a thesis. Go get a grant.

Interesting.

Your post suggests that research must be done from the benevolent endowment of the government ("grant"), and is the purview of degree'd academics or in pursuit of such a degree.

Are there no Gentleman Scientists any more?

I suppose in today's terms we would call them Makers. Moxie Marlinspike probably isn't a credible researcher.

Such as the ones used in the wifi SDCards by Transcend and PQI SD cards.

Imagine a bunch of tiny cheap linux boxes to act as meshes, dead drops, micro servers, etc...and imagine how long they'd run on a battery, or even a battery with solar!

https://forum.openwrt.org/viewtopic.php?id=45820
http://www.keyasic.com/keyasic_sub.php?type=information&inid=24
http://hackaday.com/2013/09/19/advanced-transcend-wifi-sd-hacking-custom-kernels-x-and-firefox/

Be fun to see the next gen prices after the 2014 patents expire.
http://hackaday.com/2013/09/11/3d-printering-key-patents/

You can't sniff for a valid MAC until you've already got your illicit one in the network. By then, you've already triggered the IDS.

Passive Network Tap

That is soooo yesterday and might get you shot if you carry it around! http://hackaday.com/2008/09/19/boston-led-sweatshirt-arrestee-interviewed/

Modern bombs use wireless tech and there is nothing to cut! Instead you have to figure out how to exactly fold and insert a piece of tin-foil.

Because Kevin Horton's NANDputer was built by hand out of a pile of 74HC00 (quad 2-input NAND gate) ICs on a breadboard. There isn't enough room in any single 7400 to insert a backdoor.

Are you sure? Did he ever leave the room while he was building it?

How do you know the machine building your CPU will not inject a backdoor in it?

Because Kevin Horton's NANDputer was built by hand out of a pile of 74HC00 (quad 2-input NAND gate) ICs on a breadboard. There isn't enough room in any single 7400 to insert a backdoor.

Hell, a breadboard full of 7400's is big enough to put in a real back door, complete with hinges.

How do you know the machine building your CPU will not inject a backdoor in it?

Because Kevin Horton's NANDputer was built by hand out of a pile of 74HC00 (quad 2-input NAND gate) ICs on a breadboard. There isn't enough room in any single 7400 to insert a backdoor.

Have you thought about using a range booster or cantenna? Hackaday has several builds and might provide better signal over greater distances. http://hackaday.com/2009/07/07/various-cantenna-builds/

Chip & PIN has been designed to offload risk to the card owner.

Besides, it's broken, and has been for a while. Now they're using contactless cards for sub £20 purchases - sigh.

Oh linky: http://hackaday.com/2010/02/12/chip-and-pin-broken-and-other-security-threats/

We don't even know what a computer is.

Think of it like this. If you believe you already know what a computer is, then you are not likely to look for alternatives. If you're looking for alternatives, then you might come up with something interesting like this. If you just accept that super-scalar pipelines, the way Intel does it, is the best way, then you're not going to find a different, potentially better way of doing it.

The article mentions an actual speed of 40m/s, which converts to 144km/h or around 90 MPH. Still not setting any records, but the video does indicate these things can do some damage.

This is worth a read:

http://hackaday.com/2013/03/18/hack-removes-firmware-crippling-from-nvidia-graphics-card/

It seems nVidia restrict you to two monitors on Linux whereas you can happily use three on Windows. I have no idea why other than that they are clearly bastards.

These pictures are half-assed photoshops, they do not come for real measurement, they do not vizualise anything. They give an "artistic rendition", and a fake one that is. In the real world, radio waves do not cross a wall or a window the same way, they bounce back, they resonate... If you want to see a cruder yet more information-bearing representation of a wifi signal's attenuation, check this instead: http://hackaday.com/2011/03/02/how-to-find-wifi-carry-a-big-stick-and-use-long-exposures/

Magazines can charge subscription fees to the extent that there is value in the content. Magazines can sell advertizing to the extent that people see the content. There is a spectrum here, a slider (if you will) that you can set anywhere between two extremes.

You're currently betwixt those two extremes. If you move to a model exclusively one way or the other, then the answer is obvious.

A printed magazine is inconvenient to duplicate, so can survive on subscription fees for content. An online magazine costs nothing to duplicate, so subscription fees for content is unworkable.

Drop subscription fees altogether and get all revenue from advertizing. Your reader base will skyrocket, making the publication a better value for advertizing.

Baen Books posts their older books for free on the net. Surprisingly, this increased hard-copy sales and opened their publications to a much wider audience. Eric Flint's explanation is a good read.

(And many of the free online Baen books are a good read as well.)

Note that I'm expounding the virtues of Baen Books to this website read by hundreds of thousands each day. Your magazine could do worse than be one of the handful of well-respected companies whose product is based on customer value.

And for reference, count the myriad websites that give value to the user and survive on advertizing alone. XKCD and Hackaday for example. Not websites that rely on users that add value, but websites that actually have value that the user wants. Randall Munroe lets others cite and copy his work virtually everywhere so long as it's not for money.

Transition to an open online model and throw it out to the world. Become a respected product of value.

I've read hackaday for years.

A couple weeks ago on July 1st, Caleb Kraft announced he was leaving and the site went for sale on the same day.

This was kinda suspicious for both things to happen at the same time especially because Caleb never explained why he left. HOWEVER, Caleb has posted to his personal site that he's started a new job at EETimes.com. Not sure why that was worth keeping secret.

Still, the whole thing feels like the current owner is holding the site for ransom. The way it is being explained is that the profits from hackaday are being poured into other weblogs, but if this campaign is successful, a non-profit will be formed and advertising profits will be poured back into the site.

I don't understand why they don't just buy a new domain. The freakin site is made with wordpress, who cares, the community can migrate.

I've read hackaday for years.

A couple weeks ago on July 1st, Caleb Kraft announced he was leaving and the site went for sale on the same day.

This was kinda suspicious for both things to happen at the same time especially because Caleb never explained why he left. HOWEVER, Caleb has posted to his personal site that he's started a new job at EETimes.com. Not sure why that was worth keeping secret.

Still, the whole thing feels like the current owner is holding the site for ransom. The way it is being explained is that the profits from hackaday are being poured into other weblogs, but if this campaign is successful, a non-profit will be formed and advertising profits will be poured back into the site.

I don't understand why they don't just buy a new domain. The freakin site is made with wordpress, who cares, the community can migrate.

Because it does roughly $14K a month right now without much "pimping out to advertisers" (http://hackaday.com/2013/07/01/hackaday-looking-for-a-good-home/)

It is interesting that I mentioned the crowdfunding aspect a few weeks ago when the owner posted that he was looking to sell: http://hackaday.com/2013/07/01/hackaday-looking-for-a-good-home/#comment-1021672

*sigh*....it's before pay-day so I'll have to wait.

Take a look at what the "local maniac" did to install an iPad mini in the dashboard of his truck: http://hackaday.com/2013/01/02/a-very-dash-ing-ipad-mini/

Of course, not every stereo installer is going to custom sculpt a trim ring for each stereo they install. But when they do, the results can be impressive.

Ya :( This was better http://hackaday.com/2012/12/18/build-a-360-synthetic-aperture-radar-with-mits-opencourseware/

...and it was covered by Hack A Day over two years ago.

http://hackaday.com/2011/06/14/man-spends-30-years-helping-disabled-gamers/

This guy is just making piss poor quality printables and is trying to compare them to well engineered custom controllers while preaching from a very tiny soap box and utilizing other people's existing ideas.

It's great that he is out to help disabled people increase their quality of life... but comparing these poorly / cheaply engineered devices to the likes of what Ben Heck engineers is just a joke.