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Post Info TOPIC: WI-FI Hot Spot
Sparky


Phat Cat EL Presidente

    



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WI-FI Hot Spot
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Riggs, Now you can be anywhere!!!!


Be Your Own Hotspot



Turn a backpack into a portable, solar-powered Wi-Fi hotspot, and share a high-speed connection anywhere

By Mike Outmesguine








Mckibillo





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I love the fact that more and more devices are sporting built-in Wi-Fi—the Sony PSP, smartphones, even Kodak’s EasyShare-One digital camera. The lone hitch: Wi-Fi is useless without a hotspot. Sure, thousands of spots are available, but few are free, and coverage is far from ubiquitous. What if you could marry the short-range power of Wi-Fi with the huge coverage areas of high-speed cellular services such as EV-DO to create a portable hotspot? You could use any Wi-Fi-enabled gadget anywhere you’ve got a cell signal. Play multiplayer games with friends in the park, or blog an event in real-time. Since EV-DO works at freeway speeds, you could even give Internet access to an entire road-trip caravan.

Those are exactly the kinds of things you can do with the backpack below. Its secret ingredient: the Junxion Box. Plug a cellular-network card into the book-size open-source-based device, and voilà—instant Wi-Fi hotspot, with speeds averaging around 700 kilobits per second. To power the box, I wired it to a 1.2-amp-hour battery and dropped both into the Voltaic Systems backpack, which has a built-in solar charger. Now I can surf for as long as three hours without being tethered to anything but a cell signal. The project isn’t cheap, but prices for the components and service are sure to come down in the next year or so. In the meantime, you can find me in the hills around Southern California. I’ll be the one surrounded by PSP-packing hikers.

See more photos of the backpack here.

Parts List
• Junxion Box wireless gateway $700; junxionbox.com
• Verizon Wireless EV-DO PCMCIA card $100; verizonwireless.com
• Voltaic Systems solar-charging backpack $230; voltaicsystems.com

These parts are available at any electronics store:
• 12-volt battery with spade terminals, 1.2 or higher amp-hour $15
• Male DC power plug, size M $5
• 18-gauge wire, black and red $5
• Female insulated quick-disconnect connectors, crimp-type, sized for battery spade terminals $3
• In-line fuse holder $7
• 20-amp fuse 50 cents


Instructions
1) Plug in your EV-DO card and set up the Junxion Box to automatically assign TCP/IP addresses using DHCP, and disable the authentication splash page.

2) To build the power-adapter cable, cut a length of red wire and a length of black. Strip one end of each wire and crimp a spade terminal connector onto each.

Strip the other end of the red wire, and solder it to one end of the fuse holder. Wrap the connection in electrical tape. Take apart the male DC power plug. Solder the end of the black wire to the negative terminal of the plug and the red wire to the positive. Wrap the exposed positive connection in electrical tape, and reassemble the power plug. Install a 20-amp fuse.

3) Connect the Junxion Box cigarette-lighter adapter to the backpack “power out” plug.

4) Connect the battery cable to the “battery” plug on the backpack’s charge controller.

5) Take a hike!

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Sometimes, when i'm lonely... i crawl into a laundry basket and tickle my ears. But, Some times I don't...
Dylan


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Sparky, you probably made the techno geek very happy

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ray925


Darth Raydar

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The cat is very impressive. That is why he's Phat!!!

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Dylan


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Ray, you are so hip, so street

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ray925


Darth Raydar

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That's right baby, straight out ot the suburbs!

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Dylan


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Us suburb guys have to stick together

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Jeremy Riggs


2011 Super Bowl Champions!

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WHERE DO I GET ONE?!!?!?!

DO THEY HAVE AN EAZY PAYMENT PLAN?!?!?!

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Dylan


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Told Ya

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ray925


Darth Raydar

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Too bad it's six months till Christmas. But there's always Christmas in July!!!!

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JD The Jazz Doctor


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crite I could build one of those out of gum-wrappers and a toaster. no biggie!

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"And like Web, I enjoy throwing JR under the bus.  Problem is, it's usually under the special bus that I ride every day". Ghostdancer 12-18-09
Sparky


Phat Cat EL Presidente

    



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I bet Dovetails Mcgyver could build one of these in about an hour! All we would have to do is send him the parts.

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Sometimes, when i'm lonely... i crawl into a laundry basket and tickle my ears. But, Some times I don't...
Dovetails


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Lemme go out to the warehouse and see if I can find where I put those solar panels ...





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Sparky


Phat Cat EL Presidente

    



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DT, did you get our back packs done yet?


can you strap a coffee pot on the side of mine for me? Thanks!



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Sometimes, when i'm lonely... i crawl into a laundry basket and tickle my ears. But, Some times I don't...
Dovetails


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Hmmmmm . . .

The coffee pot will require more current than the solar panel array will be able to produce even in direct sun. I'll have to go nuclear with yours.

. . . back to warehouse to find the uranium.

Gonna have to come up with a way to keep you from combusting due to the intense heat of the fusion process too . . . I just love projects like this!!!!!




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"It could be that the purpose of your life is only to serve as a warning to others."

WFTR


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Remember Ghostbusters?


Dan Akroyd - "We're going in with untested nuclear accelerators on our backs.  I blame myself."


Bill Murray - "So do I!"



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Not perfect, just forgiven.
ray925


Darth Raydar

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A Flaming Kitty Coffee....sounds like something for Starbucks.

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Dovetails


Living Legend

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And he glows in the dark too!





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"It could be that the purpose of your life is only to serve as a warning to others."

Sparky


Phat Cat EL Presidente

    



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Yah I'll have the glow in the dark mocha cat`e latte hold the fur...


Whats that? The fur is removed thru the natural process of nuclear separation? Make it two then...



-- Edited by Sparky at 14:32, 2005-07-08

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Sometimes, when i'm lonely... i crawl into a laundry basket and tickle my ears. But, Some times I don't...
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