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World's Smallest Linux Box Fits in RJ-45 Jack

An anonymous reader writes "German electronics company Kleinhenz is shipping a network-enabled Linux system built into an RJ-45 Ethernet jack. "Picotux" has a 55MHz ARM processor, 2MB of Flash, 8MB of RAM, a serial port, and five lines of GPIO. It measures 0.75 x 0.75 x 1.4 inches (19 x 19 x 36mm), and weighs 0.64 ounces (18 grams), packaged in a metal housing. A wireless 802.11 version appears to be on the horizon, too. So, if you've ever wanted to network-enable, say, a robot, boombox, or model airplane, this could be the system for you." Is this really the world's smallest? It looks a bit chunkier than a tiny gumstix machine.

18 of 347 comments (clear)

  1. Exoensive. by Oculus+Habent · · Score: 3, Interesting

    99€?! Okay, so it's not that expensive. 55Mhz processor, 2MB flash, 8MB RAM, serial port, 10/100 Ethernet... but I can go buy a cheap desktop for that. I hope it gets substantially cheaper with volume. If not, they're making a killer profit.

    Note the article doesn't tout it as world's smallest, but it is smaller than the gumstix

    --
    That what was all this school was for... to teach us how to solve our own problems. -- janeowit
  2. This isn't exactly a Blade server... by georgewilliamherbert · · Score: 5, Interesting
    ...more like a Needle.


    For only Eur 99, though, a fair deal if you need a whole lot of tiny servers for something. Who needs virtual servers, when you can stick real ones at the end of each ethernet cable?

    1. Re:This isn't exactly a Blade server... by Martin+Blank · · Score: 3, Interesting

      The first thing I thought of was an expandable, self-switching/routing patch panel architecture. I haven't put a great deal of thought into it (and maybe it shows :) ), but perhaps some sort of distributed computing architecture could help make that a reality for smaller implementations.

      The other thought that I had was per-port firewalls, but security maintenance is complex enough as it is without tracking things per interface.

      --
      You can never go home again... but I guess you can shop there.
  3. Yet, that is not small enough. by AtariAmarok · · Score: 3, Interesting

    Good going. However, can't you get it as small as an RFID chip? The average sweater section in a Wal-Mart containing 300 Linux servers. Now, that's cool.

    --
    Don't blame Durga. I voted for Centauri.
  4. Can you do the same with an Airport Express? by Rude+Turnip · · Score: 4, Interesting

    I wonder if the Airport Express is hackable enough to give you similar results.

  5. Power by BrookHarty · · Score: 5, Interesting

    First thing I thought, if you could power it with ethernet, you could put this in remote locations for sensors. But 250mA is pretty efficient.

    I could see a use for the wifi+serial setup, you could put this on older serial based nodes and remotely access them. Big market for HVAC when everyone wants them to replace hardware. Our schools here in the Washington state is saving millions by using linux and other technology than going with Honeywell or some other company to rip out the entire system and replace with modern (aka expensive) controls.

    A wifi serial setup would be cool, to pop in a router, and then access via my laptop, so I dont have to run a wire when I'm testing or racking it up.

    Lots of uses. Very cool idea.

  6. Bump in the Cable by saccade.com · · Score: 4, Interesting

    Somebody (Gordon Bell?) predicted that in the future the computer will be "just a bump in the cable". Looks like we're there. Can anybody find the original quote?

  7. Re:Oh, quite cool! by idontgno · · Score: 4, Interesting
    This was my first thought when looking at it, but with only 8MB of RAM and 2-4MB flash, I'm not sure how useful it would be for stealing big secrets.

    It doesn't have to store much if it can open an outbound network connection to something with logging.

    --
    Welcome to the Panopticon. Used to be a prison, now it's your home.
  8. Re:the next is... by nurb432 · · Score: 3, Interesting

    Though you were joking, it might be possible to embed a SOC on a LARGE FPGA, and include a micro linux on-chip...

    --
    ---- Booth was a patriot ----
  9. Re:Power Any threat to the Ciscos? by davidsyes · · Score: 3, Interesting

    My first thought is that this could do something for infrastructures security and control. Years ago when I was in the IT department, we occasionally had rogue computers on the Intranet. I thought having an intelligent panel in each cubicle could reduce the cable-chasing in the partitions and other places.

    I realize that others by now may have made products to do what I figured would be the smarter way to deal with massive amounts of wired hardware. But, since many companies and individuals are not encrypting nor using Wi-Fi out of fear of rogue waves going out anyway, does it make sense for the smart panels idea to take off again?

    IF that happens, and if these Linux jacks could be sort of like nano-bot security bots, these could ensure that NO rogue wired hardware could be easily planted on the local net. Of course, I realize that someone with skills could do some sort of man-in-the-middle hijacking of packets and obtain service or illicitly move company secrets off-site, but for IT departments such dealing with less secure data, but which need to keep rogue machines at bay, would these devices make sense? (This assumes that wireless is either forbidden, jammed, or just not being used at all...)

    But, will these Linux Jacks play a role in distributing and deprecating the expensive Cisco-type routers, firewalls, and switches? Not that Cisco hasn't already thought about and quietly stashed away a response plan, but isn't it inevitable that devices like these will begin to erode the market for the big, expensive companies which have a motive to push/sell large quantities of expensive iron?

    Seems to me, programmable, managable things like these, provided they have few exploitable pieces of code in them, could act as very intelligent, distributed ports, monitoring, reporting, and even honey-netting and more. With a little secure wireless feature set, though, imagine all the Cat 5/Cat 6+/e/n wiring that no longer has to be purchased. I guess then Belkin and others will band with the Ciscos/Redbacks, and others.

    David Syes

    --
    Previously: "Linux... Toward the Sunrise..." Now: "Linux... Toward the-- No, now, part of Every Sunrise"
  10. Re:Cool Idea. by Inigo+Montoya · · Score: 5, Interesting
    No, what's needed is an advancement in the chip at the center of this device. Currently it only has one MAC and PHY for ethernet. The next evolution of this chip should have 2 MAC/PHY. Package it in a metal case with RJ-45 at *both* ends and flash a minimal Linux+FW into it.


    Then it truly will be a "bump in the cable" as one person said.

  11. Dual-End it by chill · · Score: 5, Interesting

    I mean 2 ethernet ports, making it look like a cross-over connector, and you've have a great firewall gizmo.

    -Charles

    --
    Learning HOW to think is more important than learning WHAT to think.
  12. How about... by brsmith4 · · Score: 4, Interesting

    Imagine a beowulf cluster of those! No, really. All you'd need is a switch and some ethernet cables and you could have yourself a nifty 8 node cluster for under a grand... and bragging rights for probably having one of the worlds smallest clusters.

  13. Re:Power (and distributed sensors) by GPSguy · · Score: 3, Interesting

    This is *exactly* what I've been thinking of for a weather station. Add the processor to the sensor, place one on the anemometer at 10m, another on the temp sensor at 10m, but have it tightly networked to the 2m temp/humidity sensor. Presto! intelligent heat flux calculations. Tie the 10m anemometry to the 2m wind speed, voila`, 3d wind data.

    Lose a sensor, no problem. The rest of the site's up. Lose a data collector? No problem. It's the same as losing a sensor.

    Wow! This is great!

    --
    Never ascribe to malice that which can adequately be explained by tenure.
  14. Line Sniffer by EEPS · · Score: 3, Interesting

    Anyone ever think to maby put a second RJ-45 jack on the other side? it would still be small enough that it looks like a simple coupler, while you could haqve it sniffing network traffic, and if a internet connection is availible, it could send data back to you!

  15. Re:Finally! by Short+Circuit · · Score: 4, Interesting

    Wired ethernet exists. 802.11 version coming soon.

    And a combination of the two would make a great way to clandestinely introduce outside access to the corporate LAN. Especially if you can use power-over-ethernet.

    Just find a windowed office with a network hidden behind the credenza...

  16. "Computers will just be lumps in cables" by jamie · · Score: 4, Interesting
    "In ten years, computers will just be lumps in cables."

    A quote posted to Usenet, in 1995.

  17. Re:Finally! by getling · · Score: 3, Interesting

    My favorite idea for this (which I pictured as wired, but wired wireless works too) is as a mini firewall. Get smoothwall or something lighter working on one of these, and you could drop a firewall anywhere you need in your network, just as easily as a cable extender!

    --
    "Life is tough but we're tougher. You only get what you give, so give all that you've got." --Tony LaRussa