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Comment: Re:Arduino Tre is a better board (Score 1) 130

by innot (#45038927) Attached to: Intel Launches 'Galileo,' an Arduino-Compatible Mini Computer

The Arduino Tre looks interesting, but it basically is an Arduino Uno bolted on top of a Raspberry Pi, while the Intel Galileo is a Raspberry Pi (sans HDMI) emulating an Arduino Uno.

I think neither will be much of a success because they will be too expensive due to the cruft they carry around to ensure a compatibility that is IMHO not needed.

Comment: Why did Intel made this Arduino compatible? (Score 4, Interesting) 130

by innot (#45038733) Attached to: Intel Launches 'Galileo,' an Arduino-Compatible Mini Computer

While I like the idea of having an Arduino compatible board running Linux to do some more advanced projects, I don't understand what drove Intel to force this board to be Arduino compatible. The Quark processor is not designed for this sort of stuff as it has neither a sufficient number of GPIO pins nor any ADCs. It sure has a lot of interfaces (SPI, I2C, PCI-E, SD-Card, Serial etc.), but it lacks the things that are useful for a hacker project.

So they had to include a separate GPIO extender chip (over a slow I2C interconnect) as well as an separate ADC. The Quark SoC has some 15 GPIO Pins, the extender another 40. But of those 55 Pins only 20 GPIO pins are actually available on the Arduino shield pins -- the rest is used for all the Muxes to switch pins between the ADC, the GPIO Extender and the Quark SoC to emulate the flexibility of the Arduino AVR processor.

While I haven't looked at the actual PCB schematic, I think the board layout is also strange. The ADC is on the opposite side from the analog input pins, meaning that all analog signals have to travel a long distance in the vicinity of some high speed digital signals. And the GPIO Extender Chip is on the opposite corner from all the digital output pins.

This, together with the BGA devices (SoC, RAM), seem to indicate that this is at least an 6 layer board which will make it hard to clone this design -- something that IMHO has contributed to the success of the Arduino. The Schematic for this board has 27 pages compared to the single page of the Arduino Uno

It seems that this Board is designed more as a competitor to the Raspberry Pi than to the Arduino, both in price and in features.The Arduino compatibility is just some marketing thing which makes the board overly complex and more expensive than it needs to be.

But hey, it sure must be fun to employ a few million transistors and a full blown operating system to run the Arduino Blink demo :-)

Comment: Re:MediaTomb - Free UPnP MediaServer (Score 1) 255

by innot (#38405066) Attached to: Aging Consoles Find New Life As Video Streamers

Just make sure you hook up your console with an Ethernet cable - I got a lot of stuttering on fast-paced video over the wireless.

Unfortunately the PS3 network stack has been broken for years. Due to constantly dropping the connection and retransmitting everything multiple times, the PS3 needs about 5x - 10x more bandwidth than the actual video stream has. So you'll need a 100Mbit connection to stream a simple 10Mbit video (almost saturating the connection).

A little more detailed analysis can be found on the ps3mediaserver forums and a lengthy discussion (but no solution) can be found here.

Comment: Re:That's funny (Score 1) 663

by innot (#38363850) Attached to: Iran Wants To Clone Downed US Drone

That's funny, I thought Iran's F14's never flew again after Grumman pulled out all their service techs and stopped delivering parts.

Wikipedia disagrees. They claim to have up to 60 (out of 79) F-14 still operational and updated with their own (and Russian) tech. That is some thirty years since Grumman pulled out of the Iran.

Games

+ - The top ten retro gaming secrets->

Submitted by Barence
Barence (1228440) writes "Motion-sensing golf game controllers that appeared 20 years before the Nintendo Wii, and the 1980s handheld console that operated on solar power are just two of the gems unearthed in PC Pro's retro gaming secrets. Davey Winder has delved into his extensive personal collection of retro hardware — all beautifully photographed — to unveil the first handheld console to play "3D games" from 1983, the "the most realistic 'gun' game controller ever produced" from way back in 1972, and the device that offered multiplayer computerised Scrabble almost 30 years before the iPad."
Link to Original Source
Wikipedia

+ - Competition on Detecting Vandalism in Wikis->

Submitted by marpot
marpot (1311479) writes "Recently, the 1st International Competition on Wikipedia Vandalism Detection finished: 9 groups (5 from the USA, 1 affiliated with Google) tried their best in detecting all vandalism cases from a large-scale evaluation corpus. The winning approach detects 20% of all vandalism cases without misclassifying regular edits; moreover, it can be adjusted to detect 95% of the vandalism edits while misclassifying only 30% of all regular edits. Thus, by applying both settings, manual double-checking would only be required on 34% of all edits. Nothing is known, yet, whether the rule-based bots on Wikipedia can compete with this machine learning-based strategy. Anyway, there is still a lot potential for improvements since the top 2 detectors use entirely different detection paradigms: the first analyzes an edit's content, whereas the second analyzes an edit's context using WikiTrust."
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Image

Scientists Say a Dirty Child Is a Healthy Child 331

Posted by samzenpus
from the snack-is-going-to-be-on-the-floor-today dept.
Researchers from the School of Medicine at the University of California have shown that the more germs a child is exposed to, the better their immune system in later life. Their study found that keeping a child's skin too clean impaired the skin's ability to heal itself. From the article: "'These germs are actually good for us,' said Professor Richard Gallo, who led the research. Common bacterial species, known as staphylococci, which can cause inflammation when under the skin, are 'good bacteria' when on the surface, where they can reduce inflammation."
Education

+ - Getting Students to Think at Internet Scale->

Submitted by
Hugh Pickens
Hugh Pickens writes "The NY Times reports that researchers and workers in fields as diverse as bio-technology, astronomy and computer science will soon find themselves overwhelmed with information so the next generation of computer scientists has to learn think in terms of internet scale of petabytes of data. For the most part, university students have used rather modest computing systems to support their studies but these machines fail to churn through enough data to really challenge and train a young mind meant to ponder the mega-scale problems of tomorrow. “If they imprint on these small systems, that becomes their frame of reference and what they’re always thinking about,” said Jim Spohrer, a director at IBM.’s Almaden Research Center. This year, the National Science Foundation funded 14 universities that want to teach their students how to grapple with big data questions and students are beginning to work with data sets like the Large Synoptic Survey Telescope, the largest public data set in the world, which takes detailed images of larger chunks of the sky and produces about 30 terabytes of data each night. “Science these days has basically turned into a data-management problem,” says Jimmy Lin, an associate professor at the University of Maryland."
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Intel

+ - Intel caught cheating in 3DMark benchmark-> 3

Submitted by EconolineCrush
EconolineCrush (659729) writes "3DMark Vantage developer Futuremark has clear guidelines for what sort of driver optimizations are permitted with its graphics benchmark. Intel's current Windows 7 drivers appear to be in direct violation, offloading the graphics workload onto the CPU to artificially inflate scores for the company's integrated graphics chipsets. The Tech Report lays out the evidence, along with Intel's response, and illustrates that 3DMark scores don't necessarily track with game performance, anyway."
Link to Original Source
Idle

+ - Chessboxing Storming the Athletic World

Submitted by samzenpus
samzenpus (5) writes "Have you been craving an athletic competition that combines the raw physical energy of a chess match and the cognitive discipline of boxing? Crave no more. Chessboxing is here. No really, Chessboxing. As the name suggests, Chessboxing combines rounds of chess alternating with rounds of boxing. If there is no winner after 11 rounds, the match is awarded to the fighter with the most points in the boxing ring. Dutch artist, Iepe Rubingh, created chessboxing in 2003. He says, "I got the idea from a Serbian comic. It looked great. I wanted to see if it would work.""

"Right now I feel that I've got my feet on the ground as far as my head is concerned." -- Baseball pitcher Bo Belinsky

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