Is there an unsecured wireless network near you?
AI Listens to Radio
Monday, 19 February 2018 00:00

We’ve seen plenty of examples of neural networks listening to speech, reading characters, or identifying images. KickView had a different idea. They wanted to learn to recognize radio signals. Not just any radio signals, but Orthogonal Frequency Division Multiplexing (OFDM) waveforms.

OFDM is a modulation method used by WiFi, cable systems, and many other systems. In particular, they look at an 802.11g signal with a bandwidth of 20 MHz. The question is given a receiver for 802.11g, how can you reliably detect that an 802.11ac signal — up to 160 MHz — is using your channel? To demonstrate the technique …read more

Old Modem, New Internet.
Wednesday, 28 February 2018 03:00

Do you remember the screeching of a dial-up modem as it connected to the internet? Do you miss it? Probably not, but [Erick Truter] — inspired by a forum post and a few suggestions later — turned a classic modem into a 3G Wi-Fi hotspot with the ubiquitous Raspberry Pi Zero.

Sourcing an old USRobotics USB modem — allegedly in ‘working’ condition — he proceeded to strip the modem board of many of its components to make room for the new electronic guts. [Truter] found that for him the Raspberry Pi Zero W struggled to maintain a reliable network, and …read more

Look Out Nest — Here Comes the WIoT-2
Monday, 05 March 2018 06:00

[Dave] is an avid hacker and no stranger to Hackaday. When he decided to give his IoT weather display an upgrade, he pulled out all the stops.

The WIoT-2 is less of a weather station and more of an info center for their house — conveniently located by their front door — for just about anything [Dave] or his partner need to know when entering or exiting their home. It displays indoor temperature and humidity, date, time, garbage collection schedule, currency exchange rates, whether the garage door is open or closed, the hot tub’s temperature, a check in for his …read more

High-Effort Streaming Remote for Low-Effort Bingeing
Sunday, 11 March 2018 12:00

There’s no limit to the amount of work some people will put into avoiding work. For instance, why bother to get up from your YouTube-induced vegetative state to adjust the volume when you can design and build a remote to do it for you?

Loath to interrupt his PC streaming binge sessions, [miroslavus] decided to take matters into his own hands. When a commercially available wireless keyboard proved simultaneously overkill for the job and comically non-ergonomic, he decided to build a custom streaming remote. His recent microswitch encoder is prominently featured and provides scrolling control for volume and menu functions, …read more

Wireless Protocol Reverse Engineered to Create Wrist Wearable Mouse
Sunday, 11 March 2018 18:01

We’ve seen a few near-future sci-fi films recently where computers respond not just to touchscreen gestures but also to broad commands, like swiping a phone to throw its display onto a large flat panel display. It’s a nice metaphor, and if we’re going to see something like it soon, perhaps this wrist-mounted pointing device will be one way to get there.

The video below shows the finished product in action, with the cursor controlled by arm movements. Finger gestures that are very much like handling a real mouse’s buttons are interpreted as clicks. The wearable has a Nano, an MPU6050 …read more

Finland government buys a slice of Nokia
Tuesday, 13 March 2018 22:59

The Finnish government has snapped up 3.3 per cent of Nokia Corporation in a bid to shore up national ownership.

The €844m move by government-owned Solidium Oy will see Finnish hands exerting more influence on the networking specialist, something that unkind observers might suggest should have happened some time ago.

Solidium’s CEO, Antti Mäkinen, told Reuters , “We believe that this will be a good investment. One must remember that Nokia is Finland’s largest company and its Finnish ownership has been rather thin.”

Between 1998 and 2007 , Nokia was responsible for nearly 4 per cent of Finland’s annual GDP,

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