First time accepted submitter DeathByLlama (2813725) writes "Years ago I made the switch from DD-WRT to Tomato firmware for my Linksys router. I lost a couple features, but gained one of the best QoS and bandwidth management systems I have seen on a router to date. Admins can see graphs of current and historical bandwidth usage by IP, set minimum and maximum bandwidth limits by IP range, setup QoS rules, and see and filter graphs and lists of current connections by usage, class or source/destination — all from an elegantly designed GUI. This has allowed me to easily and intelligently allocate and adjust my network's bandwidth; when there is a problem, I can see where it's coming from and create rules around it. I'm currently using the Toastman's VPN Tomato firmware, which has about everything that I would want, except for one key thing: support for ARM-based routers (only Broadcom is supported). I have seen other firmware projects being actively developed in the last few years, so in picking a new 802.11ac router, I need to decide whether Tomato support is a deal-breaker. With solid bandwidth management as a priority, what firmware would you recommend? Stock Asuswrt? Asuswrt-Merlin? OpenWRT? DD-WRT? Tomato? _____?"
Catch up on stories from the past week (and beyond) at the Slashdot story archive
redletterdave writes "Eben Upton is the CEO of the Raspberry Pi Foundation's trading company, where he oversees production and sales of the Raspberry Pi. In a lengthy interview with ReadWrite, Upton shares how he invented Raspberry Pi, and what's coming next for the $35 microcomputer. Quoting: 'There's a big difference between [just] making a platform like Raspberry Pi available and offering support for it. I think if you just make it available, you'll find one percent of eight-year-olds will be the one percent who love that sort of thing and will get into it, regardless of how much or how little support you give them. ... [S]ince we can afford to pay for the development of educational material, we can afford to advocate for good training for teachers throughout this. There's an opportunity to get more than one percent. There's an opportunity to reach the bright kids who don't quite have the natural inclination to personally tackle complicated technical tasks. If you give them good teaching and compelling material that's relevant and interesting to them, you can reach ten percent, twenty percent, fifty percent, many more. We look back to the 1980s as this golden era [of learning to program], and in practice, only a very few percent of people were learning to program to any great degree. ... I think the real opportunity for us now, because we can intervene on the material and teacher training levels, we can potentially blow past where we were in the 1980s.'"
New submitter FikseGTS (3604833) writes "A Tesla Model S owner located a 4 pin connector on the left side of the Tesla Model S dashboard that turns out to be a disguised ethernet networking port. After crafting his owns patch cable to connect with the Tesla's port, a networking connection was established between the Tesla Model S and a laptop computer. The Model S is running a 100 Mbps, full duplex ethernet network and 3 devices were found with assigned IP addresses in the 192.168.90.0 subnet. Some ports and services that were open on the devices were 22 (SSH), 23 (telnet),53 (open domain), 80 (HTTP), 111 (rpcbind), 2049 (NFS), 6000 (X11). Port 80 was serving up a web page with the image or media of the current song being played. The operating system is modified version of Ubuntu using an ext3 filesystem. Using X11 it also appears that someone was able to somewhat run Firefox on both of the Model S screens. Is a jailbroken Tesla Model S on the way?" Some more details on this front would be appreciated, for anyone who has a Tesla they'd like to explore.
DeviceGuru (1136715) writes "Intel and CircuitCo have revealed a smaller, faster, 2nd-gen MinnowBoard open SBC based on an Atom E3800 SoC and supported by both Android 4.4 and various standard Linux OSes. The MinnowBoard Max, which will ship in Q3 starting at $99, blows past the original MinnowBoard (Slashdot video) on price, performance, and energy consumption. The 3.9 x 2.9-inch Max's $99 starting price includes a 64-bit 1.46GHz Intel Atom E3815 (Bay Trail-T) CPU, 1GB RAM and 8GB SPI flash, and coastline ports for MicroSD, Micro-HDMI, GbE, dual USB, and SATA. Unlike the original MinnowBoard, the Max provides two expansion connectors: a low-speed header, with signals similar to the Arduino's Shield connector; and a high-speed connector, which can support mSATA and mini-PCIe sockets on expansion modules, among other interfaces. Although the Max's design supports CPUs up to Intel's quad-core 1.91GHz (10W TDP) E3845, only two choices shown initially at MinnowBoard.org, with the higher-end $129 model stepping up to a 1.33GHz dual-core E3825 plus 2GB RAM.."
An anonymous reader writes: "Mining new Bitcoins is computationally expensive — you can't expect to do much on your standard home computer. Many miners have built custom rigs to mine more efficiently, but it was only a matter of time until somebody went industrial. Dave Carlson's goal is to mine 10% of all new Bitcoins from now on. He's built literally thousands of units. They collectively use 1.4 million BitFury mining chips, which are managed by a bunch of Raspberry Pis. 'The current rigs each contain 16 boards, with each board containing 16 BitFury chips, for a total of 256 mining chips on each rig. Carlson said about 90,000 processor boards have been deployed, which would put the number of rigs at about 5,600. A new board [being designed] will have 756 chips on each rig instead of 256.' Carlson says his company spent $3-5 million to get everything set up. They current generate 7,000 — 8,000 Bitcoins per month, which, at current rates, would be worth over $4 million."
Actually, I do RTFA writes "We recently heard about the confiscation of a delivery of multimeters to SparkFun for infringing on Fluke's trademark. One common thread in the discussions was the theme that Fluke should have let that shipment through as a goodwill gesture to SparkFun and the Maker community. Well, Fluke did one better. They announced they were sending more than $30k worth of official multimeters to SparkFun for them to do whatever they want with. SparkFun is most likely going to give them away. A great example of win-win-win?"
An anonymous reader writes "My colleague at IEEE Spectrum, Eliza Strickland, looked at the home transcranial direct current stimulation (tDCS) movement. People looking to boost creativity, or cure depression, are attaching electrodes to their heads using either DIT equipment or rigs from vendors like Foc.us. Advocates believe experimenting with the tech is safe, but a neuroscientist worries about removing the tech from lab safeguards..."
Via Phoronix comes news that Debian has been ported to the OpenRISC architecture by Christian Svensson. Quoting his mailing list post: "Some people know that I've been working on porting Glibc and doing some toolchain work. My evil master plan was to make a Debian port, and today I'm a happy hacker indeed! ... If anyone want to try this on real hardware (would be very cool to see how this runs IRL), ping me on IRC [#openrisc on freenode] and I'll set you up with instructions how to use debootstrap - just point to a repo with the debs and you're all set, the wonders of binary distributions." For those who don't know, OpenRISC is the completely open source RISC processor intended as the crown jewel of the Opencores project. A working port of glibc and a GNU/Linux distribution is a huge step toward making use of OpenRISC practical. There's a screencast of the system in action, and source on Github (at posting time, it was a month out of date from the looks of it). Christian Svensson's Github account also has repos for the rest of the toolchain.
szczys writes "Gregory Charvat has been playing with and teaching others about entry-level radar concepts for a long time. Now he's sat down and explained how you can do it yourself inexpensively. He says, 'One enabling technology for Radar was the cathode ray tube (CRT), which facilitated a method of measuring the time delay between transmitted and received waveforms. ... Today, rather than using a CRT we can use high-speed digitizers. This offers the obvious advantage of applying signal processing to acquired data so that only moving targets are detected, tracking can be achieved, imaging, and a multitude of other modes. But for hobbyist and consumer projects we do not need this much power, range, and can not afford the cost. We need the ability to sense like a long range radar (detecting only moving targets, imaging, Doppler, signatures, etc) but at short ranges and at low costs.' Charvat then proceeds to walk through several options for the amatuer hardware hacker."
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.'"
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 sends a post by Finnish electronics hacker Oona Räisänen, who heard a mysterious digital signal in the audio accompanying a YouTube video of a police chase. The chase was being filmed by a helicopter. Räisänen wrote: "The signal sits alone on the left audio channel, so I can completely isolate it. Judging from the spectrogram, the modulation scheme seems to be BFSK, switching the carrier between 1200 and 2200 Hz. I demodulated it by filtering it with a lowpass and highpass sinc in SoX and comparing outputs. Now I had a bitstream at 1200 bps. ... The bitstream consists of packets of 47 bytes each, synchronized by start and stop bits and separated by repetitions of the byte 0x80. Most bits stay constant during the video, but three distinct groups of bytes contain varying data." She guessed that the data was location telemetry from the helicopter, so she analyzed it to extract coordinates. When she plotted them and compared the resulting curve to the route taken by the fleeing car in the video, it was a match.
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 "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."
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."
cartechboy writes "Two guys have made a life-sized Lego car that runs on air. That's right, the 256-piston, air-powered Lego working vehicle built with half a million black and yellow Lego pieces can actually be driven up to 18 mph. It was designed and built by 20-year-old Romanian Raul Oaida in 20 months after he and his partner, Australia-based Steve Sammartino raised "tens of thousands" of crowdfunded dollars with their prospectus entitled quite simply: "Super Awesome Micro Project." The car was built in Romania and then moved to Melbourne, Australia (presumably not brick-by-brick.) In the video, the only visible non-Lego components are the gauges, wheel rims, and tires (though the wheels have Lego faces--literally.)"
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.