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9:42
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Hack a Day
If you’ve been following the developments of building Android, Chromium, and other OSes for the Raspberry Pi, you’ll come across a common theme. The drivers for the Raspi’s chip are closed source and protected by Broadcom with an NDA. This limits the ability of devs to take on projects that involve messing around deep inside [...]
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7:56
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Hack a Day
[Niklas Roy] calls it his Perpetual Energy Wasting Machine, but we know it for what it truly is: a building-sized most useless machine. You’ll remember that a most useless machine is a bobble that uses clever design to turn itself off once you have turned it on. This does the same thing with the elevator of the WRO [...]
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7:53
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Hack a Day
Once you’ve been tinkering around with electronics for a while, you’ll realize the through-hole components that make breadboarding a circuit so easy won’t cut it anymore. Surface mount parts are the future, and make it incredibly easy to build a semi-professional mockup at home. The question arises, though: how do you store thousands of surface [...]
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17:00
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SecuriTeam
This allows remote attackers to execute arbitrary code via unspecified vectors.
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7:00
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Hack a Day
Building logic gates out of silicon is old hat, as is building them from discrete transistors, 555 chips, LEGO, and even gears. [Yukio-Pegio Gunji] and [Yuta Nishiyama] from Kobe University, along with [Andrew Adamatzky] from the aptly named Unconventional Computing Centre at the University of the West of England decided they needed a new way to build [...]
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12:01
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Hack a Day
A couple of Harvard researchers have developed a method of using digital barometers as a touch sensor. The good news for us is that they’ve open sourced the project, including Eagle board files, firmware, and details about the materials they used. The digital barometers were chosen for their characteristics, availability, and low-cost. The sensor uses an array of Freescale MPL115A2 [...]
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9:01
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Hack a Day
This chandelier keeps the light source hidden and uses fiber optics to illuminate the acrylic diffusers. It’s the second attempt [TheCreator] has made at building his own. Bother projects are interesting in their own way. The first attempt used marbles as diffusers and had a much different look to it. This time around he’s using [...]
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11:01
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Hack a Day
What do you do if you’ve got a fully equipped machine shop and you’re tired of taking old beer cans to the recycler? If you’re like [Brock], you’ll probably end up melting those cans down to build an engine. After gathering 50 pounds of beer cans and melting them down into ingots of various sizes, [...]
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7:01
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Hack a Day
I arrived at the Kansas City MakerFaire bright eyed and bushy tailed, excited to meet up with like minded people and see awesome projects. I was not disappointed in that respect. The building itself is quite beautiful with giant main rooms and decorated 40 foot tall ceilings. If you haven’t ever seen the Union Station [...]
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6:01
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Hack a Day
Yep, that blue light is blinking and I made it happen. I’ve been hard at work since I got my free STM32F0-Discovery board in the mail. Most recently I put together a starting template for building STM32F05x project on Linux. You’ll still need to install your own tool chain (I’m using the Code Sourcery G++: [...]
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8:01
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Hack a Day
After building many functional but somewhat unfinished looking bots, [Tomdf] really wanted to produce something that felt “complete”. Pingbot is the result and here’s how [Tomdf] describes it: Pingbot is a very small (38mm diameter), usb rechargeable, programmable, musical, remote control robot designed for maximum fun and danceability. Though I wasn’t inclined to dance I [...]
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14:01
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Hack a Day
The last stop on my trip this summer was the Hacker Consortium in Nashville TN. The Hacker Consortium has been around since late 2007 after acquiring a building that had been abandoned for several years. They had quite the task ahead of them, since parts of the roof had caved in and the building was [...]
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14:01
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Hack a Day
His goal of one post a week for a year has past, but [Dino] keeps bringing his skills to bear on new projects. This time around he’s adding a wireless camera to an RC helicopter. These radio controlled fliers (there are cheap ones that use IR control which is much less reliable) can be found for [...]
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14:59
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SecDocs
Authors:
Greg Newby Tags:
management Event:
Chaos Communication Camp 2011 Abstract: What motivates people to create and freely distribute their works? This presentation will draw on personal experience, research literature, and existing communities of those who build and give away. Open source software, hardware, community building. The presenter will draw upon over 20 years experience with Project Gutenberg, as well as numerous other activities in which the focus is on building (things, software, communities, infrastructure) and giving them away (free and open source software, free literature, and physical artifacts). What motivates individuals to spend thousands of hours -- often in detriment to time spent with family, work, or other endeavors -- on activity which is primarily devoted to the well being of other people? Often, other people who are not personally known. Is there overlap in motivations for online communities versus volunteerism at the local level? Can such behaviors be learned? What motivates people to create and freely distribute their works? This presentation will draw on personal experience, research literature, and existing communities of those who build and give away. Open source software, hardware, community building. Characterizations of different types of motivations, levels and types of involvement, and outcomes will be made. Anomalies will be identified between individual values and targeted community outcomes, along with their sometimes disastrous impact on community identity-building or planning. Different leadership styles, and their impacts on emerging communities of contributors, will be compared. The presentation will draw some conclusions about how it might be possible to foster altruism in such communities, and to encourage increased interests in their outcomes. The audience will be asked to contribute their own experiences, especially advice about what works and what doesn't work to foster new member involvement. What are impediments to personal time investment, to sharing common goals, and to taking leadership roles? What lifecycles, governance structures, and other characteristics of successful projects (both large and small scale) can we learn from? We have seen hugely beneficial projects of all types where communities sprung up to support the building of things, software and ideas; we also have many examples of projects which did not seem to achieve their goals. How might future builders learn from these past experiences?
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14:37
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SecDocs
Authors:
Greg Newby Tags:
management Event:
Chaos Communication Camp 2011 Abstract: What motivates people to create and freely distribute their works? This presentation will draw on personal experience, research literature, and existing communities of those who build and give away. Open source software, hardware, community building. The presenter will draw upon over 20 years experience with Project Gutenberg, as well as numerous other activities in which the focus is on building (things, software, communities, infrastructure) and giving them away (free and open source software, free literature, and physical artifacts). What motivates individuals to spend thousands of hours -- often in detriment to time spent with family, work, or other endeavors -- on activity which is primarily devoted to the well being of other people? Often, other people who are not personally known. Is there overlap in motivations for online communities versus volunteerism at the local level? Can such behaviors be learned? What motivates people to create and freely distribute their works? This presentation will draw on personal experience, research literature, and existing communities of those who build and give away. Open source software, hardware, community building. Characterizations of different types of motivations, levels and types of involvement, and outcomes will be made. Anomalies will be identified between individual values and targeted community outcomes, along with their sometimes disastrous impact on community identity-building or planning. Different leadership styles, and their impacts on emerging communities of contributors, will be compared. The presentation will draw some conclusions about how it might be possible to foster altruism in such communities, and to encourage increased interests in their outcomes. The audience will be asked to contribute their own experiences, especially advice about what works and what doesn't work to foster new member involvement. What are impediments to personal time investment, to sharing common goals, and to taking leadership roles? What lifecycles, governance structures, and other characteristics of successful projects (both large and small scale) can we learn from? We have seen hugely beneficial projects of all types where communities sprung up to support the building of things, software and ideas; we also have many examples of projects which did not seem to achieve their goals. How might future builders learn from these past experiences?
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9:01
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Hack a Day
[Alex George] has been collecting miniatures of Main Street, USA in Disney Land hand crafted by artist [Robert Olszewski]. These models are incredibly accurate, but sadly static. [Alex] has some of the floats from the Main Street Electrical Parade that light up with the help of a few LEDs. One day, [Alex] found himself wishing he could watch [...]
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12:01
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Hack a Day
Careful, this hack might foster doubts about the level of fun you’re having at you own Computer Science department. Last weekend a group of students at MIT pulled off a hack of great scale by turning a building into a Tetris game board. The structure in question is the Green Building on the Massachusetts Institute of Technology [...]
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13:09
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Hack a Day
There’s a word – synchronicity – to describe two disparate events that occur together in a meaningful way. We see this a lot in the Hackaday tip line; two people send in somewhat similar hacks solving similar problems in similar ways nearly simultaneously. Here’s two builds by [Bryce] and [spektakx] that hit our inbox within minutes [...]
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8:01
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Hack a Day
We were all children at one time, and surely some of us remember the pain of trying to make one type of building block work with another type of block. The folks at the Free Art and Technology Lab have an answer for your inner child: adapters that connect any type of building block to any [...]
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8:22
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Hack a Day
[Steven] needed to come up with a project for the Computer Vision course he was taking, so he decided to try building a portable 3D camera. His goal was to build a Kinect-like 3D scanner, though his solution is better suited for very detailed still scenes, while the Kinect performs shallow, less detailed scans of [...]
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13:49
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Hack a Day
Around this time last year, [KopfKopfKopfAffe] was enlisted as a set designer and was told to build some sort of light effects for electronic music parties. The budget for the project wasn’t much at 200 Euros, but he did manage to build decent 5×5 RGB LED matrix that is fully controllable by a computer. [KopfKopfKopfAffe] [...]
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11:01
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Hack a Day
[Joel] dug up this hack that he pulled off over ten years ago. It’s inspired by the Nintendo PowerGlove, and uses flex sensors to react to movements of your fingers. The interesting thing is, he built these optical flex sensors himself. He likes to say that this is a ghetto fiber-optic setup. The inlaid diagram [...]
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16:01
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Hack a Day
Around a year ago, a bunch of blinkenlights were installed in the HCI-Building of ETH Zürich. These LED spots weren’t interactive and only showed hardcoded patterns. Of course a bunch of LEDs demand interactivity, so for the first-semester party this year a giant game of Tetris was built on the side of a building. There’s [...]
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12:01
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Hack a Day
If you are planning on using more than a handful of BlinkMs in a project, you will likely find that their $15 price tag quickly adds up. Instructables user [jimthree] found himself in that position and opted to create his own homebrew version of a BlinkM instead. He calls his creations “Ghetto Pixels”, and while [...]
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9:03
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Hack a Day
Like many electronics hobbyists, [Pete] found that he had an overwhelming desire to build a clock for himself. He didn’t want to stick a discrete real time clock IC into a box and call it a day, so he opted to construct his own around a microcontroller instead. After researching the specs on a few [...]
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16:00
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Hack a Day
Not every cool hack needs to involve microcontrollers, LEDs or other bling. We were initially drawn to the Bloxes display simply because we love a good multipurpose construction set, whether it be Lego, 80/20 aluminum, or in this case, a system of interlocking cubes formed from six identical pieces of corrugated cardboard, cut and scored [...]
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15:30
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Hack a Day
[Collin Cunningham] over at Make recently wrapped up another edition of “Collin’s Lab” - this time around, the subject is breadboards. He starts off by discussing a common solderless breadboard, something you are no doubt familiar with. What you might not know however is how breadboards got their name. Way back when, before there was a [...]
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6:12
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Hack a Day
It all starts with one station in your home office but who knows where it can go from there? If you’ve got dreams of being an Internet radio jockey you can get some ideas about equipment startup from this setup that [Viktor's] built for a friend. He started out with a plan to have a [...]
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8:34
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Hack a Day
[Oneironaut] sent us another IR hack. This time it is a writeup on the best ways to create IR light sources from regular lights. Since normal flashlight bulbs emit a broad enough spectrum to include visible light and IR light, this basically comes down to filtering. [Oneironaut] explores different light sources and different materials in [...]
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11:00
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Hack a Day
If you’ve been lusting after your own glowing display we’re here to help by sharing some simple building techniques that will result in an interesting project like the one you see above. This is a super-accurate clock That uses ping-pong balls as diffusers for LEDs, but with a little know-how you can turn this into [...]
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13:00
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Hack a Day
We know way too little about this subject but hopefully [Bob4analog] helped us learn a little bit more this time around. He’s building his own linear amplifiers on what looks like sheets of MDF. This is an evolving design and the two videos after the break show two different iterations. He’s salvaged several components, like [...]
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5:00
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Hack a Day
[Simon Inns] has put together a lesson in digital logic which shows you how to build your own gates using transistors. The image above is a full-adder that he fabricated, then combined with other full adders to create a 4-bit computer. Don’t know what a full adder is? That’s exactly what his article is for, [...]
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10:54
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Hack a Day
[Brad Graham] enjoys building bikes. He threw together a tall bike called the SkyWalker and then shared the build details. It’s got everything you’d expect in a fixed-gear bike; a seat, pedals, steering, and two wheels. You’ll have to do a bit of climbing to get into the saddle but the incorporated ladder doubles as [...]
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12:00
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Hack a Day
[Der_picknicker] wrote in to let us know about a guide to building OpenWRT images for the dockstar (translated). What they end up with is a nice little network attached storage device that runs SAMBA and subversion under the umbrella of OpenWRT. We looked at flashing and building OpenWRT images for this device back in July. The [...]
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13:38
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Wirevolution
I will be moderating a session at ITExpo West on Tuesday 5th October at 9:30 am: “Building Better HD Video Conferencing & Collaboration Systems,” will be held in room 306A.
Here’s the session description:
Visual communications are becoming more and more commonplace. As networks improve to support video more effectively, the moment is right for broad market adoption of video conferencing and collaboration systems.
Delivering high quality video streams requires expertise in both networks and audio/video codec technology. Often, however, audio quality gets ignored, despite it being more important to efficient communication than the video component. Intelligibility is the key metric here, where wideband audio and voice quality enhancement algorithms can greatly improve the quality of experience.
This session will cover both audio and video aspects of today’s conferencing systems, and the various criteria that are used to evaluate them, including round-trip delay, lip-sync, smooth motion, bit-rate required, visual artifacts and network traversal – and of course pure audio quality. The emphasis will be on sharing best practices for building and deploying high-definition conferencing systems.
The panelists are:
- James Awad, Marketing Product Manager, Octasic
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Amir Zmora, VP Products and Marketing, RADVISION
- Andy Singleton, Product Manager, MASERGY
These panelists cover the complete technology stack from chips (Octasic), to equipment (Radvison) to network services (Masergy), so please bring your questions about any technical aspect of video conferencing systems.
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9:19
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Hack a Day
Want to try your hand at building a Linux package for an embedded device? [SnowBot] decided to give it a try and set out to build Ubuntu for a GumStix. The single-board computer will cost you about $150 to get started, plus a way to connect to the device’s serial port. But once you’ve got [...]
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10:00
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Hack a Day
[Nyle] was interested in building lasers at home but felt that the exotic parts list was just too daunting. That was, until he discovered T.E.A. lasers. T.E.A. lasers can be constructed from a few bits of aluminum and some high voltage. They emit UV light, as you can see in his examples where he shoots [...]
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13:00
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Hack a Day
If you’ve used PVC as a building material in your projects you may have run into trouble finding a way to make three pipes joint at right angles to each other (like the corner of a box outline). That’s because there’s no need for that type of joint when plumbing, the intended purpose of the [...]
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11:27
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Hack a Day
[Derek Diedricksen] builds nomadic houses from left over building materials. Some are large enough to haul behind a vehicle or, in the case of the one above, small enough to tote around like a wheelbarrow. We love them because not only do they reuse material that might commonly hit the landfill, but they look good. [...]
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9:00
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Hack a Day
In keeping with our opinion that radio operators were the original electronic hackers here’s a guide to building your own transmitting air variable capacitors. Using some roof flashing, Plexiglas, and various fasteners [David Hammack] was able to make it work. It’s not a perfect solution but he has some ideas to make the next one [...]
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13:00
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Hack a Day
We’ll ask it again, why aren’t we building our own printers? We’re building 3d printers, CNC mills, and hacking the ink cartridges on commercial printers. What does it really take to build say a 300 dpi black and white printer? Something that lets you clean and service the print head rather than throwing it out [...]
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