New OEM/Hobby RFID reader is available. Projects kit soon to follow!

March 10th, 2010

Well the day has finally come! I’ve been collaborating with Robotics Connection to put together a new kick@ss RFID reader geared for OEMs, DIYers, and home hobbyists.

New RedBee RFID Reader

Here’s the feature shortlist;

  • Great range, even with 3×13 and 2×12 glass tags!
  • Low power consumption (great for battery powered projects)
  • 4 I/Os that can be used as inputs or outputs
  • Internal memory can store up to 48 tag IDs
  • Programmable “autopulse” feature controls I/O lines automatically
  • USB virtual COM port communication option
  • Plug and play wireless XBee module support!
  • Single and multi-reader mode communication protocols
  • Communication protocols support tons of features

    This reader is by far the best EM41xx family reader out there, especially for the price. One very interesting feature is the XBee wireless communications option. Using XBee modules, you can set up an encrypted wireless data channel for one or more RFID readers to communicate on. The reader has a special COM protocol that can be turned on to allow multiple readers to all communicate on the same XBee PAN, allowing a PC to talk to and manage multiple readers at once using a single COM channel.

    New Projects & Software

    Now that the hardware is available, I’m in the process of working with Trossen Robotics to put together a new set of project write-ups that use this great reader, including the long awaited Vista/Windows 7 RFID login project (32/64 both supported! [peek]). I will be posting once the kit is available, but for now you can pick up a reader or two and start playing!

  • Best trade for service ever!

    February 24th, 2010

    I first got started with computers in the 3rd grade, where someone had left a PET computer. I started actually working on other people’s computers when I was 16. At the time, I started by only charging $10 per hour for on-site help. Still, there were times when people wouldn’t have much cash but needed to get their computer fixed (often to write a resume) and they would offer other things in trade for service. In the past I’ve traded for a thanksgiving dinner, a bicycle, and one older woman and her husband tried to give me some wine and get me into their hot tub (I took the cash and ran for it on that one).

    Possibly the best trade ever happened a few days ago. I was at a friends house and they were having problems getting their work VPN connected from home. As a simple favor I took a look. They said they could connect from hotels and on the road, but not from home. I suspected a NAT router config issue, but discovered there was a chain of routers throughout the house. Instead of hubs or switches, they bought and used routers to connect each room to the garage router where the cable modem was. After getting some cheap dumb hubs at the local computer store, the problem was solved.

    He was so happy he could work from home the next day, he escorted me back to the garage and let me pick out something from his special collection. No, not his pron collection…

    Swords!

    I must admit I’ve seen some pretty nifty swords in the local “sword and knife” stores and I’ve been intrigued, but I never wanted to be the guy that spent actual money on one. Now I have two of my own and don’t have to feel like a tool for buying them (sorry friendo, no offense)!

    The 2010 Winter Olympics in Vancouver

    February 20th, 2010

    The fact that the 2010 Winter Olympics are being hosted in Vancouver BC is pretty great. It’s probably the only time I’ll be able to (or want to) actually attend an actual Olympics event.

    Olympic Trouble

    Too difficult?
    Rather than putting on an elaborate show which could never compete with the memory of China’s Olympic presentation, it seems clear Vancouver was instead trying to build their Olympics reputation on challenging, high speed, high difficulty courses. Weeks before the Olympics, the luge course was already billed as the fastest and most dangerous in the world. That title was proven upon the tragic death of Nodar Kumaritashvili. It seems event after event, from snowboard cross to downhill skiing that professionals, past Olympic champions, and newbs alike are all crashing… hard. More and more events end up being all about luck and survival rather than finely honed talent.

    Too warm?
    Then there’s the weather issue. It’s February and I’m looking for my swimming trunks. Guys are out on their motorcycles riding on clear blue sky sunny days. Anyone that thinks global warming is a bunch of horse crap, think again. My late grandfather used to tell us stories of ice skating on local rivers from November to March when he was a kid. When I was a kid, the rivers never froze over, but we did get at least a few feet of snow every year… and it stayed around for weeks. Today we’re lucky to see a flake hit the ground all year, and if it does snow it’s not around long. Ironically, while we’re begging for snow here in Seattle/Vancouver, the East coast has seen record snowfalls… prompting some to declare global warming a bunch of BS. It’s likely those people are the type of people who call it global warming to contrast the snowfall this year, but insisted everyone call it “climate change” (to lessen the impact) only a few short years ago. To them I say; smarten up. Record snow on the East coast simply proves weather patterns are changing, and just maybe it’s no longer “too cold to snow” over there.

    The problem isn’t just in Vancouver, it’s everywhere (hence the “global” part). Speed skating is a national obsession in the Netherlands. So much so they have a single race that pits literally thousands of speed skaters against each other over the frozen canals and lakes in an 11 city marathon. Sadly, this national event must now regularly be held in Austria (PDF) because it just isn’t getting cold enough to freeze anymore. The problem is so epic in nature, even the likes of Bill Gates is getting very serious about how to stop the constant rise in temperature.

    Too much security?
    Security for the 2010 games was taken very seriously. There are thousands of security cameras blanketing the streets of Vancouver and Whistler, and the police cracked down on just about everything from the local homeless population to actually going into civilians’ private homes to confiscate signage and “contraband”. There is even word coming down from Whistler that there might as well be a curfew since the nightlife scene has basically been suffocated by intense security measures. Not to say good security isn’t a good idea, but I think tight yet unobtrusive security is better than overt “show of force” security any day.

    Then there’s the Olympic flame issue.

    Get back lowlifes!

    To me, nothing said “get back you filthy lowlife” more than the giant fence designed to keep me a good 50 feet away from the Olympic Flame. Not only that, but the thing is positioned directly next to a giant new wood finished simply gorgeous virtually empty building with giant glass windows overlooking the flame. Why is the building empty? Only special IOC delegates and volunteers are allowed access to the building, and with it direct access to the Olympic Flame. Apparently there has been enough uproar that some measures were taken to lighten security around the flame, but some still aren’t happy.

    While I wasn’t able to find a “life size” version of the Olympic Statue, I was able to have some fun with a smaller version in the courtyard of some bank. Luckily there wasn’t much security around buildings like this one, however that 30 second tangent off the designated sidewalk area got me some stressed out looks from the locals, like I was taunting the security beast or something.

    Actual fun at the Olympics

    In spite of all the problems Vancouver has, there is still a lot of fun to be had at the Olympics!

    Public drunkenness!

    Entire blocks converted for art & pedestrian use

    Public ice skating rink

    Damn screen savers!

    So many search lights FOX is jealous!

    Hockey tickets!

    Unruly Canadians

    Taking pictures of the no pictures sign

    A sea of red and white

    The vikings rather quiet after Canada's 8th goal

    Roaming profiles and folder redirection for multiple domain forests

    February 18th, 2010

    I started dealing with multi-domained Windows forests and many of the scripts and group policy settings currently being used only work with a single domain set up, or would work better if the domain name was taken into consideration. For example, folder redirection for two users named James Smith, but who work in totally different domains under the same forest. Both have the user name jsmith, which is unique within their own domains… but problems arise with “typical” folder redirection.

    Target Folder Location
    Each folder needs a target location. Windows Vista provides four options when selecting a target folder location:

    • Create a folder for each user under the redirection path: This option will redirect the selected folder to the location specified in the Root Path. Also, this option will add a folder named after the user logon name. For example, if you redirect the Documents folder to the root path of \\server\share, Folder Redirection will create the Documents folder under the path \\server\share\username.

    • Redirect to the following location: This option redirects the named folder to the exact path listed in the Root Path. This has the capacity to redirect multiple users using the same share path for the redirected folder. You could use this option so multiple users have the same Desktop or Start Menu.

    Note
    Folder redirection only supports %USERNAME%, %USERPROFILE%, %HOMESHARE%, and %HOMEPATH% environment variables.

    • Redirect to the local user profile location: This option redirects the named folder to the local user profile. The local user profile for Windows Vista is Users\Username. The local user profile for Windows XP and Windows 2000 is Documents and Settings\username.

    • Redirect to the user’s home directory: This option is available only on the Documents folder and redirects the Documents folder to the home folder path configured in the properties of the user object. To make the Pictures, Music, and Videos folders follow the Documents folder to the home directory, check the “Apply redirection policy to Windows 2000, Windows 2000 Server, Windows XP, and Windows Server 2003 operating systems” setting.

    I was hoping to use the Redirect to the following location setting and use environment variables like %USERNAME% and %USERDOMAIN% to separate out redirected folders to UNC paths like \\fileserver\home\%USERDOMAIN%\%USERNAME% however the lack of support for the %USERDOMAIN% environment variable in the folder redirection mechanism forces me to hard set the domain name in the path and create unique group policies for each domain.

    All in all it’s not a big deal, but I spent at least 45 minutes searching for an answer to why folder redirection wasn’t working when I used %USERDOMAIN% in the redirection path. Finally I found Microsoft’s Roaming User Data Deployment guide.

    If you have problems deploying folder redirection, a great technet article is available for your review. One of the juicy tidbits from that article is how to turn on detailed logging;

    Folder Redirection Logging

    Errors and failures of Folder Redirection processing are logged as events in the Application Event log. In addition, Folder Redirection can provide a detailed log to aid troubleshooting. To create a detailed log file for Folder Redirection, add a value to the following registry key:

    HKLM\Software\Microsoft\Windows NT\CurrentVersion\Diagnostics

    Set: FdeployDebugLevel = Reg_DWORD 0×0f

    A log file, Fdeploy.log, is created and stored in the %windir%\debug\usermode\ folder.

    I use twitter, please rob me

    February 18th, 2010

    From IT Pro:

    A group by the name of Forthehack has launched a website called Please Rob Me which serves to expose the security risk of location-aware online services such as Twitter and Foursquare.

    It has opted to do so by listing all the empty homes that are available to be robbed by publishing a live feed of those Foursquare players who automatically post location updates to Twitter.

    The funniest commercial I’ve seen in a long time

    February 17th, 2010

    I normally hate to take commercial videos viral, but holy crap this made a group of us laugh pretty hard when we saw it on TV. So hard in fact, we had to rush to YouTube to re-watch it.

    Feds push for mobile phone tracking, even when idle

    February 14th, 2010

    When people think somehow “they” are able to track me by RFID implant, aside from trying to explain the limitations of the technology and the actual effective range of the implant (2 inches), I also point out that cell phones are able to pinpoint your exact whereabouts at any time. Private companies providing location based services pay a minimal fee to carriers to obtain people’s cell phones’ locations all the time… it’s simple to do.

    CNET reports:

    Wireless carriers using CDMA networks, such as Verizon Wireless and Sprint Nextel, tend to use embedded GPS technology to fulfill E911 requirements. AT&T and T-Mobile comply with E911 regulations using network-based technology that computes a phone’s location using signal analysis and triangulation between towers.

    T-Mobile, for instance, uses a GSM technology called Uplink Time Difference of Arrival, or U-TDOA, which calculates a position based on precisely how long it takes signals to reach towers. A company called TruePosition, which provides U-TDOA services to T-Mobile, boasts of “accuracy to under 50 meters” that’s available “for start-of-call, midcall, or when idle.”

    Now the FBI wants that same level of access, and then some.

    Even though police are tapping into the locations of mobile phones thousands of times a year, the legal ground rules remain unclear, and federal privacy laws written a generation ago are ambiguous at best. On Friday, the first federal appeals court to consider the topic will hear oral arguments (PDF) in a case that could establish new standards for locating wireless devices.

    In that case, the Obama administration has argued that warrantless tracking is permitted because Americans enjoy no “reasonable expectation of privacy” in their –or at least their cell phones’– whereabouts. U.S. Department of Justice lawyers say that “a customer’s Fourth Amendment rights are not violated when the phone company reveals to the government its own records” that show where a mobile device placed and received calls.

    Implantable continuous glucose monitoring sensor

    February 14th, 2010

    Just a few days ago I noted the future of implants really is going to be medical sensors that use the same passive power and data transmission methods as passive RFID, and now I hear about these guys doing exactly that for glucose measurement. Not quite at the “lab on chip” level yet, but this is clearly a great first step in that direction.

    Real time monitoring and logging

    Probably the best thing about this tech is the ability to keep a running log in real-time. That kind of immediate and constant feedback gives people a whole different “set of eyes” when it comes to learning about their own bodies. Biorasis, the company that is developing this technology, has put together a video that runs through the implantation and utilization process. It’s very rudimentary, but gets the point across.

    Killing mosquitoes with lasers!

    February 12th, 2010

    Now this is something I can really get behind. It involves lasers (very cool) and killing mosquitoes (the only animal I wish didn’t exist… ok, mosquitoes and fleas). The idea is to stamp out malaria by tracking mosquitoes in flight by IDing them based on their flight/wing noise, and shooting them down using lasers. I think this is great, and it’s much better than spraying thousands of pounds of pesticides everywhere.


    Hit by laser

    Wings melted

    Watch video of the kill!

    It can be built with consumer electronics — a Blu-ray player has a blue laser, a laser printer has fast-moving mirror. You can use them around clinics. The shoot 100% organic photons. You can measure wingbeat frequency and size the of flying insect and decide whether it is worth killing. Moore’s law makes technology so cheap we can decide whether or not to kill a bug.

    While it looks as if many mosquitoes make it through their encounter with the laser alive, without wings they become totally harmless. Unable to fly to their next meal, they die horribly slow starvation deaths, which seems somehow better than dying a quick death.

    Borderlands co-op mode

    February 12th, 2010

    So I’ve been playing Borderlands at night before going to bed, but now I’ve expanded to playing in the morning before work. I think I’m right at the end of the game, but who knows… it could just go on forever. Eventually though, the solo-fun will run out, and that’s where things get interesting.

    I usually detest the “run and gun” multiplayer modes most games have. Trying to play a decent game of Halo with friends ends up being a big mess, with no actual strategy… or fun for that matter. This is why Borderlands is different.

    From Kotaku:

    Borderlands features drop-in/drop-out co-operative play for up to four players. So what happens when your friend wants to join your game but is at a much higher level than you? How does Gearbox balance the experience?

    “You don’t!” says Gearbox president Randy Pitchford.

    “If you want to measure XP, you can. If you want to host a game where the other guys are around the same level as you, then you can set that up. But hey, you paid your sixty bucks for the game, and if you want to play your level 50 character with a friend who’s level 1, knock yourself out.”

    It’s refreshing to see a developer placing trust in his game’s community to make the right choices to find the type of experience they want.

    This is one instance where I feel like I definately got my $60 worth. Thanks Randy :)