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Urban Wireless - Your one stop information portal for wireless networking, connectivity, and security goodness.

The below wireless news is from a number of sources including: Hack a Day and The Register.

 
Serval = Free Mobile / Cell Phone calls, for the World!
Thursday, 08 September 2011 08:53

Communicate anywhere, any time … without infrastructure, without mobile towers, without satellites, without wifi hotspots, and without carriers. Use existing off-the-shelf mobile cell phone handsets. Use your existing mobile phone number wherever you go, and never pay roaming charges again.

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Suddenly, Wireless Power Transmission Is Everywhere
Friday, 24 February 2017 12:01

Wireless power transfer exists right now, but it’s not as cool as Tesla’s Wardenclyffe tower and it’s not as stupid as an OSHA-unapproved ultrasonic power transfer system. Wireless power transfer today is a Qi charger for your phone. It’s low power – just a few amps — and very short range. This makes sense; after all, we’re dealing with the inverse square law here, and wireless power transfer isn’t very efficient.

Now, suddenly, we can transfer nearly two kilowatts wirelessly to electronic baubles scattered all over a room. It’s a project from Disney Research, it’s coming out of Columbia University,  …read more

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33C3: Dissecting 3G/4G Phone Modems
Tuesday, 21 February 2017 09:00

[LaForge] and [Holger] have been hacking around on cell phones for quite a while now, and this led to them working on the open cellphone at OpenMoko and developing the OsmocomBB GSM SDR software. Now, they are turning their sights on 3G and 4G modems, mostly because they would like to use them inside their own devices, but would also like to make them accessible to the broader hacker community. In this talk at the 33rd Chaos Communications Congress (33C3), they discuss their progress in making this darkest part of the modern smartphone useful for the rest of us.

This …read more

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ESP8266 BASIC Sets Up a Web Remote in No Time
Monday, 20 February 2017 09:00

One of the sticking points for us with our own Internet of Things is, ironically, the Internet part. We build hardware happily, but when it comes time to code up web frontends to drive it all, the thrill is gone and the project is only half-done.

Including some simple web-based scripting functionality along with the microcontroller basics is one of the cleverest tricks up ESP8266 BASIC’s sleeves. BASIC author [mmiscool] puts it to good use in this short demo: a complete learning IR remote control that’s driven through a web interface, written in just a few lines of BASIC.

Note …read more

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The Best Conference Badge Of 2017 Is A WiFi Lawn
Saturday, 18 February 2017 18:00

It’s February, conference season hasn’t even started yet, and already there’s a winner of the best electronic badge of the year. For this year’s MAGfest in beautiful downtown Baltimore, [CNLohr] and friends distributed 2,000 ESP8266-based swag badges.

These custom #badgelife badges aren’t. Apparently, MAGFest wouldn’t allow [CNLohr] to call these devices ‘badges’. Instead, these are ‘swadges’, a combination of swag and badges.  On board theses swadges is an ESP-12, a quartet of RGB LEDs, and buttons for up, down, left, right, A, B, Select, and Start. The swadge is powered by two AA batteries (sourced from Costco of all places), …read more

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