Posts with «networking» label

Link Trucker is a Tiny Networking Giant

If you’re a networking professional, there are professional tools for verifying that everything’s as it should be on the business end of an Ethernet cable. These professional tools often come along with a professional pricetag. If you’re just trying to wire up a single office, the pro gear can be overkill. Unless you make it yourself on the cheap! And now you can.

[Kristopher Marciniak] designed and built an inexpensive device that verifies the basics:

  • Is the link up? Is this cable connected?
  • Can it get a DHCP address?
  • Can it perform a DNS lookup?
  • Can it open a webpage?

What’s going on under the hood? A Raspberry Pi, you’d think. A BeagleBoard? Our hearts were warmed to see a throwback to a more civilized age: an ENC28J60 breakout board and an Arduino Uno. That’s right, [Kristopher] replicated a couple-hundred dollar network tester for the price of a few lattes. And by using a pre-made housing, [Kristopher]’s version looks great too. Watch it work in the video just below the break.

Building an embedded network device used to be a lot more work, but it could be done. One of our favorites is still [Ian Lesnet’s] webserver on a business card from way back in 2008 which also used the ENC28J60 Ethernet chip.


Filed under: Network Hacks, tool hacks

WiFi-equipped Arduino Yun now available for $69 (video)

If you were wondering what happened to the Arduino Yun after it missed its original June release target, you can relax: it's now on sale worldwide. As promised, the $69 (€52) design combines a garden variety Leonardo board with a WiFi system-on-chip running Limino, giving owners a customizable wireless access point with Ethernet, USB and a microSD slot. Tinkerers can also program the Arduino component over the air using a newly updated developer environment. Those already sold on the concept can buy an Arduino Yun at the source link, while newcomers can check out an introductory video after the break.

Filed under: Misc, Networking

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Via: Arduino Blog

Source: Arduino Store

Engadget 11 Sep 14:51

Flutter: A $20 wireless Arduino with a long reach

If the words "ARM-powered wireless Arduino" send your heart aflutter, then you might be interested in... Flutter -- a development platform with the aforementioned qualities. The Kickstarter project claims the device has a usable range of over half a mile, letting you nail that wireless letterbox-checker project with ease. Similar tools, such as Xbee and Zigbee already exist, but the $20 price tag for the Flutter basic, and $30 for Flutter Pro (adds battery charging, another button, more memory) make this a tempting option for tinkerers on a budget. So, if building that mesh network of quadrocopters has been sitting at the top of your to-do list for too long, we recommend you get backing right now.

Filed under: Networking, Internet

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Via: Ycombinator

Source: Kickstarter

Engadget 28 Aug 13:17

Hacker builds allegedly pointless data network out of Lego train set

How can we appreciate bullet-quick SSDs and fiber networks without pausing -- at the year's end -- to appreciate where it all came from? We should think back to before the birth of modern computing, even before the telegraph, to a time when bits of data were forced to travel everywhere by train. A hacker named Maximilien has now recreated that locomotive golden era using Lego, Arduino and Linux, and what his system lacks in bandwidth it more than makes up for in historical relevance. A USB flash key is borne by miniature railway carriage from station to station, stopping at each one to unload or pickup information and thus creating its own barebones networking protocol. Click the source link to appreciate the full museum piece.

Hacker builds allegedly pointless data network out of Lego train set originally appeared on Engadget on Tue, 27 Dec 2011 09:19:00 EST. Please see our terms for use of feeds.

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