An anonymous reader writes "Shubham Banerjee, a seventh grader in California, has developed a braille printer made from a $350 Lego Mindstorms EV3 kit and some simple hardware. He calls the science fair project the Braigo. 'The Braigo's controller is set up to scroll through the alphabet. You choose a letter and it prints it out with tactile bumps on a roll of calculator paper. The print head is actually a thumbtack, which Banerjee settled on after also testing a small drill bit and a mechanical pencil. The first prototype isn't terribly fast, but it proves the concept works. Banerjee is working on improvements that will allow it to print full pages of text.'"

sfcrazy writes "The Free Software Foundation has approved TAZ 3 as privacy-respecting, and awarded it 'Respects Your Freedom' certification. TAZ 3 is the fifth model in the LulzBot line of 3D printers by Aleph Objects, Inc. FSF has certified other models of LulzBot 3D printer for respecting privacy as well."

mspohr writes with this excerpt from The Register: "Spanish hackers have been showing off their latest car-hacking creation; a circuit board using untraceable, off-the-shelf parts worth $20 that can give wireless access to the car's controls while it's on the road. The device, which will be shown off at next month's Black Hat Asia hacking conference, uses the Controller Area Network (CAN) ports car manufacturers build into their engines for computer-system checks. Once assembled, the smartphone-sized device can be plugged in under some vehicles, or inside the bonnet of other models, and give the hackers remote access to control systems. 'A car is a mini network,' security researcher Alberto Garcia Illera told Forbes. 'And right now there's no security implemented.'"

An anonymous reader writes "Gamer rage is a common phenomenon among people who play online, a product of the intense frustration created by stressful in-game situations and an inability to cope. It can have significant impact on the gamer's ability to play well, and to get along with others. To combat this rage and train gamers to deal with the stress, visual designer Samuel Matson of Seattle has created the Immersion project, integrating a pulse sensor tied to a Tiny Arduino with Bluetooth into a headset to monitor the gamer's heart rate. The heart rate data is sent in real time to the gaming PC, where it is displayed in the game. Matson even created a simple FPS using the Unity game engine that varies the AI and gaming difficulty based on the user's heart rate. Using this system, the gamer is able to train themselves to recognize the stress and learn to control it, in order to make them a much more agreeable and competitive player."

An anonymous reader writes "Google's recent acquisition of Nest, the maker of smart thermostats and smoke detectors, has sparked concerns of future plans for the devices, and how Google's omnipresent thirst for information will affect them. Thus, a team of engineers at Spark sat down and roughed out a prototype for an open source version of Nest. It looks surprisingly good for such a short development cycle, and they've posted their code on Github. The article has a number of short videos illustrating the technology they used, and how they used it. Quoting: 'All in, we spent about $70 on components to put this together (including $39 for the Spark Core); the wood and acrylic were free. We started working at 10am and finished at 3am, with 3.5 engineers involved (one went to bed early), and the only work we did in advance was order the electronic components. We're not saying that you can build a $3.2 billion company in a day. But we are saying that you can build a $3.2 billion company, and it's easier now than it's ever been before.'"

An anonymous reader writes "Ok, fellow geeks... I have the luxury of finally building my dream home from scratch. It's going to be good sized (~4000 sq ft over 3 levels), and rather than run around at night to make sure my lights are off, doors are locked, garage is closed, etc, I really want to put in a home automation system. Since the walls aren't up, this is the time for complete flexibility as to my options. The last time I did a whole house, it was years ago, X10. Since then, lots of other protocols, both 'proprietary' and more general (like WiFi) have come on the market for devices — all better than what I've worked with in the past. What do you all have experience with and recommend as reliable, secure, and fairly easy to use? Something with a good chance for long term availability of parts and features would be a bonus."

A while ago you had the chance to ask inventor Alan Adler about making the perfect cup of coffee and throwing things really far. Below you'll find his best coffee brewing tips and the answers to those questions.

Tech educational collective The Geek Group, based in Grand Rapids, Michigan, has more than 25,000 members, scattered all over the world — most of whom have never been to their flagship location in Michigan. Sadly, a fire Thursday damaged one of the facilities at their Leonard Street Labs (damage report starts about 26 minutes into this video), the High Voltage Lab. Since there aren't that many places for amateurs and hobbyists to learn about high voltage (even with the growing number of maker spaces around the world), that leaves a hole that hopefully will soon be filled; lucky for anyone interested, The Geek Group welcomes volunteers.

schwit1 writes "Illinois passed a new state law that set back the efforts of the People for the Ethical Treatment of Animals (PETA), making the use of drones to interfere with hunters and fishermen prohibited. The law was created in response to PETA's plan to employ drones called "air angels" to monitor outdoors enthusiasts engaged in hunting and fishing nationwide."

DeviceGuru writes "A Russian startup called Virt2real has produced a small $120 Linux-based WiFi controller board for remote control and video observation applications, and has demonstrated its use in a remote controlled car. Inspired by Back to the Future and James Bond film Tomorrow Never Dies, Virt2real's Bond Car demo (YouTube video) shows a Vauxhall (Opel) Vectra being remotely controlled by an iPad via WiFi. The iPad interface includes touchscreen-based steering wheel, brakes, and accelerator, which are mirrored in the car by a mechanical contraption that physically turns the steering wheel and pushes the brake and accelerator pedals. The company is now accepting orders for the first 1,000 of its Virt2real controller board, and is working on a Virt2real-based Bond Car it that will work with most cars."

With his popular Getting Started in Electronics, and Engineer's Mini-Notebook series and a number of different electronics kits sold at Radio Shack, Forrest Mims inspired countless scientists and engineers. Even though he received no formal academic training in science, Forrest has appeared in 70 magazines and scientific journals. He has worked as a consultant for the National Geographic Society, the National Science Teachers Association, and NASA’s Goddard Space Flight Center. Today, Mims works on many scientific projects including climate change research. He's agreed to answer all your questions about science and engineering. As usual, ask as many as you'd like, but please, one question per post.

When he's not lecturing at Stanford or NASA, Alan Adler is working on brewing the perfect cup of coffee and engineering flying toys. His AeroPress is one of the most popular coffee brewing systems available and one of his Aerobie Pro Rings set the world record for the farthest thrown object at 1,333 feet. Alan has agreed to sit down and answer any questions you may have. As usual, ask as many as you'd like, but please, one question per post.

An anonymous reader writes with this excerpt from The Daily Dot:"On Monday evening, a bill aimed at thwarting the production and distribution of plastic 3-D printed weapons was blocked by Senate Republicans. ... The debate over the new legislation centered around the 1988 Undetectable Firearms Act, which bans the production and distribution of weapons that skirt 'walk through metal detectors.' The act has been renewed on two occasions since its passage. It was due to expire again on the 9th of December. The House voted to renew the bill last week. The rise of 3-D printing has made this year's renewal more complicated in the Senate. Many lawmakers, particularly Democrats, feel the current Undetectable Firearms Act inadequately addresses the rising threat posed by printed plastic weapons."

Arvydas Juskevicius (say that five times fast) is an independent software developer and hardware hacker based in London (which is where I got a chance to talk with him) who's decided to bring the useful LED signalling capabilities of many modern smartphones into the world of desktop or laptop computers. With his £10 BlinkStick kit (£15 pre-assembled), you get a programmable multi-color LED that's about the size of a flash memory key. Deceptively simple -- it's essentially one giant pixel, after all, which might not sound exciting when you have millions of them on a dense display surface. But that LED light is something you can use as a signal for alarms, or to tell you that you have a message from one app while another is at full-screen, or practically anything else that you can devise software to notice and react to. I get the sense that Juskevicius would prefer that people get the kit version, to help spur interest in actually soldering some hardware rather than just plugging it in. If you're allergic to paying in other than U.S. dollars, the BlinkStick is also available from Adafruit Industries. Watch the video below to see it in action.

First time accepted submitter wick3t writes "The Neo900 fundraising campaign has already achieved the milestone of 200 pre-orders which means that mass production is now feasible. This follows a successful first prototype that was showcased at the OpenPhoenux-Hard-Software-Workshop 2013. Their next target is 1000 pre-orders as they aspire to reduce the production costs of each device." For those not familiar, the Neo 900 is an offshoot of the OpenMoko GTA04 designed for use in the popular Nokia N900 case (and, yes, they're fixing the weak usb port).

Zothecula writes "Last August, it looked as if NASA's Kepler space telescope was as good as scrap due to the failure of its attitude control system. Now the space agency proposes what it calls the K2 mission concept, which may fix the problem by using the Sun to regain attitude control and allow Kepler to resume its search for extrasolar planets."

A year after the first schematics were completed and a few months after the first prototype board shipped, Make Play Live has released Improv, the first engineering card for EOMA-68 (EOMA-68 is a specification for modular systems that splits the cpu board from the rest of the system, allowing the end user to use the same core with several devices or upgrade e.g. a tablet without having to pay for a new screen shell). From Aaron Seigo's weblog post: "The hardware of Improv is extremely capable: a dual-core ARM® Cortex-A7 System on Chip (SoC) running at 1Ghz, 1 GB of RAM, 4 GB of on-board NAND flash and a powerful OpenGL ES GPU. To access all of this hardware goodness there are a variety of ports: 2 USB2 ports (one fullsize host, one micro OTG), SD card reader, HDMI, ethernet (10/100, though the feature card has a Gigabit connector; more on that below), SATA, i2c, VGA/TTL and 8 GPIO pins. The entire device weighs less than 100 grams, is passively cooled and fits in your hand. Improv comes pre-installed with Mer OS, sporting a recent Linux kernel, systemd, and a wide variety of software tools. By default it boots into console, so if you are making a headless device you needn't worry about extra overhead running that you don't need. If you are going to hook it up to a screen (or two), then you have an amazing starting point with choices such as X.org, Wayland, Qt4, Qt5 and a full complement of KDE libraries and Plasma Workspaces. Improv takes advantage of the open EOMA68 standard to deliver a unique design: the SoC, RAM and storage live on one card (the 'CPU card'), the feature ports are on a PCB it docks with (the 'feature board'). The two dock securely together with the CPU card sitting under the feature board nestled in a pair of rails; they are undocked from each other by pushing a mechanical ejector button." Check out the specs and pictures. The card is available now for $75. Improv is open hardware, with the schematics licensed under the GPL and available soon.

The reports that Apple was to buy Israeli 3-D sensor maker PrimeSense have turned out to be correct; the BBC reports that Apple has confirmed the purchase, though it is mum both about the price it paid and about where 3D sensors are likely to show up first in the Apple lineup. Also at the Register and Apple Insider, among others.

Nerval's Lobster writes "Scientists have been using everything from supercomputing clusters to 3D printers to virtually recreate dinosaur bones. Now another expert is trying to do something similar with the ancient imperial villa built for Roman emperor Hadrian, who ruled from 117 A.D. to 138 A.D. Hadrian's Villa is already one of the best-preserved Roman imperial sites, but that wasn't quite good enough for Indiana University Professor of Informatics Bernie Frischer, who trained as a classical philologist and archaeologist before being seduced by computers into what evolved into the academic discipline of digital analysis and reproduction of archaeological and historical works. The five-year effort to recreate Hadrian's Villa is based on information from academic studies of the buildings and grounds, as well as analyses of how the buildings, grounds and artifacts were used; the team behind it decided to go with gaming platform Unity 3D as a key part of the simulation."

50000BTU_barbecue writes "I made a comment a few days ago in a story basically saying the oscilloscope is dead. While that's a bit dramatic, I've found that over the last 20 years my oscilloscopes have been 'on' less and less. Instead, I use a combination of judicious voltage measurements, a logic analyzer and a decent understanding of the documentation of the gadget I'm working on. Stuff is just more and more digital and microcontroller-based, or just so cheap yet incredibly integrated that there's no point in trying to work on it. (I'm thinking RC toys for example. Undocumented and very cheap. Doesn't work? Buy another.) While I still do old-school electronics like circuit-level troubleshooting (on old test gear), that's not where the majority of hobbyists seem to be. Yet one thing I keep hearing is how people want an oscilloscope to work on hardware. I think it's just not that necessary anymore. What I use most are two regulated DC lab supplies, a frequency counter, a USB logic analyzer, a USB I2C/SPI master, and a USB-RS-232 dongle. That covers a lot of modern electronics. I have two oscilloscopes, a 100MHz two-channel stand-alone USB unit and a 1960s analog plug-in-based mainframe that is a '70s hacker dream scope. But I rarely use them anymore. What equipment do hardware folks out there use the most? And would you tell someone trying to get into electronics that they need a scope?"