DonsDeals Blog

Don's Deals Blog

Adding a serial port through an RJ45 connector

posted Dec 30th 2010 10:00am by Mike Szczys
filed under: peripherals hacks

[Mike Lu] likes to add serial ports to his routers to use for debugging but he didn’t want to drill holes in his new RT-N12. After a bit of head-scratching he thought about repurposing the four unused wires on one of the RJ45 Ethernet connectors. This would allow him to interface with the necessary signals and still have the option of using that port for a network connection. The first step was to build the circuit to output the correct serial levels and connect it to the unused pins on the jack. Next, to separate serial and Ethernet on the outside of the router he build a short adapter cable.

This is an elegant solution if you’re looking for zero case modifications. But if you don’t mind a few inconspicuous holes we love the serial port used on this Dockstar.

tagged: ethernet, rj45, router, rt-n12, serial port

Diabetes Health Center

Recall of Defective Glucose Test Strips

FDA Says Faulty Strips Could Give Diabetes Patients Inaccurate Reading of Glucose Levels

By Bill Hendrick
WebMD Health News

Reviewed by Laura J. Martin, MD

Dec. 22, 2010 -- The FDA says it is working with Abbott Diabetes Care to recall 359 million defective glucose test strips -- sold under a variety of brand names -- that may make blood glucose levels look lower than they really are.

The FDA says the defective strips “can lead users to try to raise their blood glucose when it is unnecessary or to fail to treat elevated blood glucose due to a falsely low reading,” and that “both scenarios pose health risks.”

About 24 million Americans have diabetes.

Abbott says the defective strips aren’t absorbing enough blood to provide an accurate reading. The company also says test strips stored for a long time in medicine cabinets or test strips that have been exposed to warm temperatures could give false results.

“FDA and Abbott are reviewing the cause of the manufacturing defect to avoid this problem in the future,” Alberto Gutierrez, PhD, of FDA’s Center for Devices and Radiological Health, says in a news release.

Gutierrez says diabetes patients “should be aware of the recalled glucose test strips and take steps to prevent them from affecting their health.”

Slideshow: Blood Sugar Control and Insulin

Which Strips Are Being Recalled

The strips being recalled are used with Abbott’s MediSense Optium, Precision Xceed Pro, Precision Xtra, Optium, Optium EZ, and ReliOn Ultima blood glucose monitoring systems.

The lots were manufactured between January and May of this year and sold in retail stores in the U.S. and Puerto Rico. The strips are used both by consumers and health care professionals.

Abbott says the strips should not be used and will be replaced at no cost to consumers.

It says the monitoring systems themselves are not being recalled, just the defective strips.

Patients should contact their health care providers to determine testing options if they don’t have any unaffected test strips to use.

The FDA says it is working with Abbott to avoid any potential shortages of useable products. The company says it will take about eight weeks to produce and distribute enough strips to replace all the defective ones that have been distributed.

The FDA also says people with diabetes who want to find out if they have products that need to be returned should call Abbott Diabetes Care at 800-448-5234 for English speakers and at 800-709-7010 for Spanish speakers. The FDA says people wishing to look up test strip lot numbers should visit the web site www.precisionoptiuminfo.com.

In addition, consumers should report serious adverse side effects to the FDA by phone at 800-332-1088, fax at 800-FDA-0178, online at www.fda.govMedWatch/report.htm, or via regular mail at www.fda.gov/MedWatc/getforms.htm, where pre-addressed forms may be obtained.

Advice to Glucose Test Strip Users

Here’s what the FDA says people who purchased the test strips should do:

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Next Page >

diabetes newsletter

Go there...
http://diabetes.webmd.com/news/20101222/recall-of-defective-glucose-test-strips?ecd=wnl_nal_122210

I got this link from Jeff...

Don

Don's Deals Blog

MIT Inspired Impromptu SegStick

posted Dec 27th 2010 3:00pm by Greg R. Jacobs
filed under: classic hacks

If many of the readers out there longed for a Segway for Christmas but Santa didn’t bring you one, you are in luck. The aptly named Seg-Stick by [scolton] is a great way for cheap transportation. It uses a broomstick, along with two DeWalt cordless drills to power this bad boy on 6” wheels. Like articles done before on Hack a Day this is an awesome although rudimentary example of the things that can be made with a short amount of time, some determination, and a few power tools. Great job [scolton].

Seg...stick. Video...

Video Link...
http://www.youtube.com/watch?v=Pg9LyG0_hFE&feature=player_embedded

tagged: SegStick, segway

MIT Inspired Impromptu SegStick: MIT Inspired Impromptu SegStick - Hack a Day; Sticking it all together.; YouTube - Seg...stick.

Defcon 2010 - Who cares about IPv6 - Sam Bowne - Part.mov

Video Link...
http://www.youtube.com/watch?v=zIUgH2wVt_0&feature=related

Interesting Talk on the Coming IP Version 6 and what to do about it...

Don

Don's Deals Blog

A hacker's marginal security helps return stolen computer

posted Dec 25th 2010 10:00am by Mike Szczys
filed under: cons, security hacks

Gather round and hear the story of how a hacker outsmarts a criminal. [Zoz] was robbed and they got his desktop computer. Gone, right? Nope. Because of a peculiar combination of his computer's configuration, and the stupidity of the criminal, he got it back. He shares the tale during his Defcon 18 talk (PDF), the video is embedded after the break.

[Zoz's] first bit of luck came because he had set up the machine to use a dynamic DNS service, updated via a script. Since the criminal didn't wipe the hard drive he was able to find the machine online. From there he discovered that he could SSH into it, and even use VNC to eavesdrop on the new owner. This, along with a keylogger he installed, got him all the information he needed; the guy's name, birth date, login and password information for websites, and most importantly his street address. He passed along this juicy data to police and they managed to recover the system.

[Thanks Ferdinand via Gizmodo]

Defcon 18 Pwned By the owner What happens when you steal a hackers computer zoz part

Video Link...
http://www.youtube.com/watch?feature=player_embedded&v=U4oB28ksiIo

tagged: defcon, ssh, vnc

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