Programming

Learn Gate-Array Programming In Python and Software-Defined Radio 51

Bruce Perens writes Chris Testa KB2BMH taught a class on gate-array programming the SmartFusion chip, a Linux system and programmable gate-array on a single chip, using MyHDL, the Python Hardware Design Language to implement a software-defined radio transceiver. Watch all 4 sessions: 1, 2, 3, 4. And get the slides and code. Chris's Whitebox hardware design implementing an FCC-legal 50-1000 MHz software-defined transceiver in Open Hardware and Open Source, will be available in a few months. Here's an Overview of Whitebox and HT of the Future. Slashdot readers funded this video and videos of the entire TAPR conference. Thanks!"
Power

Wireless Charging Standards Groups Agree To Merge 65

jfruh writes: The world where our gadgets all charge wirelessly has been delayed by several factors, one of which is that there are three industry groups promoting rival technological standards. That problem is now a little closer to a solution, as the Alliance for Wireless Power and the Power Matters Alliance announced a plan to merge.
NASA

NASA's Robonaut 2 Can't Use Its Space Legs Upgrade 58

BarbaraHudson writes: Robonaut 2, now in orbit on board the International Space Station, has run into problems with the software controlling its new legs. From the article: "The machine ran into a few technical errors. According to NASA, the ground teams deployed Robonaut's software and received telemetry from the robot, but were unable to obtain the correct commands for the leg movement, which are vital to performing every day tasks aboard the International Space Station. Ground teams have begun assessing how to move forward with this issue, though it is unclear if they currently have a fix in mind."
Education

DuinoKit Helps Teach Students About Electronics (Video) 61

This is something Timothy Lord ran across a few months ago at a Maker Faire near Atlanta: The DuinoKit. Think of it as a fancier (and pricier) version of the venerable Radio Shack Electronic Learning Labs and you won't be far off. Plus, as the name DuinoKit implies, it's based on an Arduino, which means that right off the bat it packs a lot more learning punch than the Radio Shack kit. DuinoKit was financed by a KickStarter campaign that asked for $19,500 and raised $57,478 from 250 backers. And for those of you who worry about being called nerds because you're carrying a DuinoKit around, you can relax. It comes in a 'Secret Agent Carrying Case.' Really. Read their What is the DuinoKit? Web page carefully and you'll see. (Alternate Video Link)
AMD

AMD, Nvidia Reportedly Tripped Up On Process Shrinks 230

itwbennett writes: In the fierce battle between CPU and GPU vendors, it's not just about speeds and feeds but also about process shrinks. Both Nvidia and AMD have had their move to 16nm and 20nm designs, respectively, hampered by the limited capacity of both nodes at manufacturer TSMC, according to the enthusiast site WCCFTech.com. While AMD's CPUs are produced by GlobalFoundaries, its GPUs are made at TSMC, as are Nvidia's chips. The problem is that TSMC only has so much capacity and Apple and Samsung have sucked up all that capacity. The only other manufacturer with 14nm capacity is Intel and there's no way Intel will sell them some capacity.
Transportation

Toyota Opens Patents On Hydrogen Fuel Cell Technology 124

An anonymous reader writes that Toyota will share almost 6,000 hydrogen fuel cell patents. "Hoping to speed development of hydrogen fuel cell vehicles, Toyota said Monday that it would offer thousands of patents on related technologies to rival automakers, for free. The announcement, made at the annual Consumer Electronics Show in Las Vegas, echoes a similar move by electric car maker Tesla in 2014, when Chief Executive Elon Musk made Tesla patents available to all, hoping to spur innovation in the electric vehicle world (and, perhaps, to draw publicity.) Toyota has similar goals for the fuel-cell car market. 'At Toyota, we believe that when good ideas are shared, great things can happen,' Bob Carter, senior vice president at Toyota, said before the announcement. 'The first generation hydrogen fuel cell vehicles, launched between 2015 and 2020, will be critical, requiring a concerted effort and unconventional collaboration.'"
Intel

Intel Unveils 5th Gen Core Series Broadwell-U CPUs and Cherry Trail Atom 78

MojoKid writes Intel has officially taken the wraps off its 5th generation Core Series notebook processor, code named Broadwell-U. This new SoC is a "tick" in Intel's tick-tock plan, which means it's mostly a die shrink of the existing Haswell architecture, at least on the CPU side. On the GPU side, there's a bevy of improvements and advances, and the video decoder block has been beefed up with dual bit stream decoders in its high-end (GT3) hardware. Other feature improvements and capabilities are expected, though Intel has been quiet on exactly what they have tweaked and changed to date. Intel is claiming that the architecture will boost battery life by 1.5 hours, speed video conversions, and offer a whopping 22% improvement to 3D performance — a gain on par with what we saw when moving from Ivy Bridge to Haswell. Intel also took the wraps off their next gen Atom CPU, code named Cherry Trail. This is essentially a 14nm Bay Trail die shrink that's been on the roadmap for a while. As with Haswell-Broadwell, the Bay Trail-Cherry Trail shift is aimed at improving CPU power consumption and overall SoC power characteristics, though again, we'll see an updated GPU baked in as well.
Transportation

NVIDIA Announces Tegra X1 Chip and Drive CX and PX Automotive Platforms 12

MojoKid writes For the last few years, NVIDIA has taken advantage of the lead-up to the Consumer Electronics Show to announce new Tegra-powered mobile architectures and this year we're being treated to more of the same. Today, NVIDIA unveiled its upcoming Tegra X1 system on a chip (SoC) and a few automotive computer systems leveraging the chip. Tegra X1 is a significant departure from the previous-gen Tegra K1 in that it features a 256 core Maxwell-derived GPU and eight CPU cores; four ARM A57 cores and four A53s in a big.LITTLE configuration. NVIDIA claims the Tegra X1 offers up to 2x the performance of the Tegra K1 in a similar power envelope, thanks to improved efficiency in the CPU and GPU cores and because the chips will be built using TSMC's 20nm manufacturing process. In addition to the Tegra X1 itself, NVIDIA also announced some new automotive computing platforms, the NVIDIA Drive CX Digital Cockpit Computer and Drive PX Auto-Pilot Platform, along with the Drive Studio software suite for developing in-car infotainment systems and autonomous driving systems.
The Courts

Indiana Court Rules Melted Down Hard Drive Not Destruction of Evidence 181

An anonymous reader writes An Indiana court has ruled that a hard drive that was sent to recycling was not destruction of evidence. The ruling stems from a BitTorrent file-sharing case filed by Malibu Media where a defendant claimed that his hard drive had failed thanks to heavy use. Malibu claimed that the act was destruction of evidence and filed a motion demanding a default judgement. The court denied this motion suggesting that because the hard drive failed, there was no evidence to destroy in the first place.
Hardware Hacking

Hackers Leak Xbox One SDK Claiming Advancement In Openness and Homebrew 86

MojoKid writes Microsoft, it seems, just can't catch a break. Days after a major hack took its servers offline on Christmas day, and after being lambasted in multiple stories for shipping games like Halo: The Master Chief Collection in nigh-unplayable condition, the company's Xbox One SDK has been leaked to the public by a group calling itself H4LT. H4LT, which apparently objects to being called a hacker group, offered this explanation when asked why it was distributing the SDK. The group claims that "the SDK will basically allow the community to reverse and open doors towards homebrew applications being present on the Xbox One." To be clear, what H4LT has done is a far cry from groups like Lizard Squad. The SDK for any given product is typically available behind some degree of registration, but they don't necessarily cost anything. The SDK is one small component of creating the ecosystem that would be necessary to get homebrew up and running on the platform. Whether or not users will ever pull it off is another question.
Input Devices

Ask Slashdot: Linux Distro For Hybrid Laptop? 210

Steve Parrish writes: I needed a new laptop and found a great deal on an Asus Transformer TP500L. It's one of the laptops where you can flip the screen back and use it as a tablet. I'd like to replace Windows 8.1, and I'm having a difficult time finding a Linux distro that will work on it. I'm familiar with Mint, SolydX, and older Ubuntu versions. I tried the latest Ubuntu with Unity and didn't like it, but the OS installed with only a few minor issues. Has anyone tried any other distros on a hybrid laptop with a touchscreen? I've used Linux for several years, but I'm no guru -- I'm not comfortable with the command line or other advanced workings. Any suggestions would be appreciated.
Data Storage

Apple Faces Class Action Lawsuit For Shrinking Storage Space In iOS 8 325

An anonymous reader notes that Apple is being sued over claims that iOS 8 uses too much storage space on the company's devices. "Ever wonder why there never is enough space on your iPhone or iPad? A lawsuit filed this week against Apple Inc. alleges that upgrades to the iOS 8 operating system are to blame, and that the company has misled customers about it. In the legal complaint filed in California, Miami residents Paul Orshan and Christopher Endara accuse Apple of "storage capacity misrepresentations and omissions" relating to Apple's 8 GB and 16GB iPhones, iPads and iPods. Orshan has two iPhone 5 and two iPads while Endara had purchased an iPhone 6. They contend the upgrades to the operating system end up taking up as much as 23 percent of the storage space on their devices."
Cloud

Ask Slashdot: Best Options For a Standalone Offline Printing Station? 190

An anonymous reader writes My father is considering a Chromebook, but there is a problem: He occasionally wants to print. Chrome OS only talks to physical printers by Google Cloud Print, so the printer has to be online one way or another. But my father wants to surf over 3G, so he has no network infrastructure. Now what are the best options for a standalone printing station that works offline? I have a Raspberry Pi and a small touch display that I could spare, how about I prepared some scripts and called that the dedicated printing computer? Then what printers have ARM drivers available? Does anybody know a consumer-grade or small-office-grade printer that can print ordinary PDF docs directly from flash drives or memory cards? I have looked, but could not find one yet. The devices I found that print PDF docs directly only do so if the docs were made by the (proprietary) printer-related software or the printer itself. There are ways to turn PDF docs into series of JPG files. A lot of ordinary printers can print JPG files directly from flash media, should my father stick with this option? Also, what are secondary options in case the offline printing station does not work out? Should he consider buying a 3G-capable WiFi router (there are enough available) and set up a home network, then use Google Cloud Print? Should I just send my father to a copy shop? Or should he simply forget about the Chromebook and get an ordinary laptop with a common OS that can talk to printers by USB?
Programming

Ringing In 2015 With 40 Linux-Friendly Hacker SBCs 81

DeviceGuru writes As seen in this year-end summary of 40 hacker-friendly SBCs, 2014 brought us plenty of new Linux and Android friendly single-board computers to tinker with — ranging from $35 bargains, to octa-core powerhouses. Many of the new arrivals feature 1-2GHz multicore SoCs, 1-2GB RAM, generous built-in flash, gigabit Ethernet, WiFi, on-board FPGAs, and other extras. However, most of the growth has been in the sub-$50 segment, where the Raspberry Pi and BeagleBone reign supreme, but are now being challenged by a growing number of feature-enhanced clones, such as the Banana Pi and Orange Pi. Best of all, there's every reason to expect 2015 to accelerate these trends.
China

The Coming Decline of 'Made In China' 327

retroworks writes: Adam Minter documents the move of Chinese steel mills to Africa, and speculates that China's years of incredible rates of economic growth may already be over. This one steel mill's move to Africa, by itself, increases Africa's production by two-thirds. "The officials in Hebei Province who oversee the company may have felt they had no choice. First, they undoubtedly faced political pressure to reduce their environmental impact in China: reducing production of steel, cement and glass -- all highly polluting industries, especially in developing countries -- will have a direct impact on Xi Jinping’s pollution goals. (Starting in Hebei will have the added benefit of cleaning up polluted, neighboring Beijing.) Second, Hebei may simply be at a loss as to how to scale back businesses that they recognize have become massively bloated. Officials in China’s construction-related industries clearly have too much capacity and too little demand." It's also possible that these moves will be encouraged by China's transition to clean economy, though that could be a bad thing for pollution in Africa.
Portables (Apple)

Putting a MacBook Pro In the Oven To Fix It 304

An anonymous reader writes: A post at iFixit explains how one user with a failing MacBook Pro fixed it by baking it in the oven. The device had overheating issues for months, reaching temperatures over 100 C. When it finally died, some research suggested the extreme heat caused the logic board to flex and break the solder connections. The solution was to simply reflow the solder, but that's hard to do with a MBP. "Instead, I cracked open the back of my laptop, disconnected all eleven connectors and three heat sinks from the logic board, and turned the oven up to 340 F. I put my $900 part on a cookie sheet and baked it for seven nerve-wracking minutes. After it cooled, I reapplied thermal paste, put it all back together, and cheered when it booted. It ran great for the next eight months." The laptop failed again, and another brief vacation into the oven got it running once more.
Handhelds

Is the Tablet Market In Outright Collapse? Data Suggests Yes 328

Nerval's Lobster writes Is the tablet market rapidly collapsing? Mobile-analytics firm Flurry doesn't come to quite that stark a conclusion, but things aren't looking too good for touch-screens that don't qualify as "phablets." According to Flurry's numbers, full-sized tablets accounted for only 11 percent of new devices in 2014, a decline from 2013, when that form-factor totaled 17 percent of the new-device market; small tablets experienced a smaller decline, falling from 12 percent to 11 percent of new devices between 2013 and 2014. (Meanwhile, phablets expanded from 4 percent of new devices in 2013 to 13 percent this year.) Boy Genius Report, for its part, looked at those numbers and decided that the tablet market is doomed: "Consumers happy with compact smartphones are not switching to larger iPhones for now, but former tablet buyers are." That's not to say people will stop using tablets, but the onetime theory that they would one day cannibalize all PCs looks increasingly nebulous.
Hardware Hacking

Glowing Hobbit Sword Helps You Find Unsecured Wi-Fi 67

Molly McHugh writes By disassembling your plastic Sting and incorporating the Spark Core, a tiny Wi-Fi development kit, you can hack the toy's light and enlist it to show you when you are near an unsecure network. The best part about this hack? It only requires two things: a Spark Core and a replica Sting with lights and sound, like this one."
Graphics

Quake On an Oscilloscope 71

An anonymous reader writes: Developer Pekka Väänänen has posted a fascinating report on how he got Quake running on an oscilloscope (video link). Obviously, the graphic details gets stripped down to basic lines, but even then, you need to cull any useless or unseen geometry to make things run smoothly. He says, "To cull the duplicates a std::unordered_set of the C++ standard library is used. The indices of the triangle edges are saved in pairs, packed in a single uint64_t, the lower index being first. The set is cleared between each object, so the same line could still be drawn twice or more if the same vertices are stored in different meshes. Before saving a line for end-of-the-frame-submit, its indices in the mesh are checked against the set, and discarded if already saved this frame. At the end of each frame all saved lines are checked against the depth buffer of the rendered scene. If a line lies completely behind the depth buffer, it can be safely discarded because it shouldn't be visible."
Christmas Cheer

Ask Slashdot: Best Wireless LED Light Setup for 2015? 68

An anonymous reader writes I want to get a jump-start on next year's Christmas by wiring up my mother's gnome garden for a Christmas light show. I need a setup that can use wireless LED lights and speakers, the lights using a custom sequence set to music, that can be controlled remotely indoors to go off on a schedule, say every hour. Do you know of an off-the-shelf setup that is cheap and works seamlessly, especially for someone with little to no coding or custom building experience?

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