Make: Online: Wireless Archives

Archive: Wireless

November 17, 2009

SPARK Project #3, Post #1

For my third and final SPARK project, I'm going to continue building on lessons learned from Project 1 and Project 2. I've found Windows Embedded CE 6.0 R2 to be a powerful tool, but getting started is not a trivial process. Despite a sophisticated IDE, configuring and building running systems can be challenging, especially when the hardware isn't working as expected. So I'm going to continue where I left off with Project 2, and create the building blocks to control external devices using a serial interface.

A number of my projects have required wireless communications. I've tried many wireless systems, and one of my favorites is the XBee transceiver from Digi. They are easy to configure and use, and there is a wealth of example code to drive them from a wide variety of computing platforms. The high-power version can transmit over long distances, and at 250kbps, the data rate is excellent. I frequently use the devices as a simple wireless serial link, although they are very effective for point-to-multipoint and multipoint-to-point communications.

Follow my exploration of Windows Embedded CE driving xBees on the Microsoft SPARK site!

November 6, 2009

Claim virtual turf with real-life balls

Want to claim your city as your own? Competing with a rival gang for turf, and want to avoid messy knife fights? Well now you can, thanks to Urban Defender. Working over a short time period, a team of students from Zurich University of Arts built a system to claim buildings by throwing a specially equipped ball at them. Impacts are detected by an accelerometer connected to an Arduino, which is wirelessly connected to a Beagle board which uses a GPS to coordinate the hit to a specific address.

They apparently didn't have time to finish the multi-player version of the game, but I think the concept is too good to let die. Someone should definitely hook this up to the social networking game foursquare. As a bonus, you could use the sensor units to play the actual game four square when you get tired of fighting for turf.

November 5, 2009

R1 tactile radio prototype

The user interface to the R1 radio is both familiar and unique. Roll up and down for volume or scroll left to right to tune. It's brilliant in its simplicity and rather stylish in a contoured minimalist design. [via GeekyGadgets]

An analog radio is one of most important product for a blind people. In the using a behavior of how people manipulated rather than burying all of interaction in to the product. So adjusting radio to the right station would require a new kind of manipulation rather than simply tuning a knob. 'R1' has designed for them to control the radio more intuitively. By using a wheel structure user can control the radio by physical movement. The 'R1' allowed users to turn gadget on or off and to control volume and tuning simply by physically rolling the radio forward, backward and sideways.

October 20, 2009

iPod-controlled RC car

More Dorkbot Austin goodness! John Boiles demonstrated this radio-controlled car steered using his iPod's built-in accelerometer via its built-in WiFi transmitter. All you have to do is tilt the iPod, and the car goes. It starts to move around 1:10.

Open Source Nintendo DS Bluetooth adapter

Gordan Savicic and Gottfried Haider of DSbrut fame have tipped us off that they've just released their DS Bluetooth adapter for the Nintendo DS.

Almost two years in the making, we're happy to finally release our DS Bluetooth adapter. The tiny Slot-1 cartridge allows you to hook up the Nintendo DS wirelessly with other devices such as GPS-receivers, robots and so forth. Today we're making all materials of the project openly available, including the schematics and a GPL-licensed software library for the Nintendo DS, because we believe in open hardware design and want to encourage collaboration in the hardware hacking community.

If you've got a homebrew Nintendo DS project that we should know about leave a link in the comments.

October 2, 2009

Yankee Steam-Up this weekend in Rhode Island

Continuing a great tradition, the New England Wireless and Steam Museum is hosting the Yankee Steam-Up, where you can see steam engines large and small, stirling engines, running antique engines and vehicles, and much more. There is also a Marconi-era wireless museum with fascinating equipment from the early days of radio, including a Massie Station spark gap transmitter.

Check out some great videos of running steam engines from last year's event here.

The Original Yankee Steam-Up:
For model makers, machinists, engineers & historians
Saturday October 3, 2009
8:30AM-4:00PM
1300 Frenchtown Road, East Greenwich, RI 02818
Steam & Compressed Air for Models.
Licensed Boilers & Licensed Engineers.
New Englands Largest Steam-Up Boiler.
Giant Working Steam Engines & Hot Air & IC.

Admission is $15.00 for adults, children under 12 are $5.00. All Steam-Up proceeds go to upkeep of the museum. Parking is free, and there is food at the event.

September 18, 2009

Wi-Fi dowsing rod

Dutch maker Mike Thompson designed and built this Wi-Fi dowsing rod by joining old and new to deliver a whimsically arcane device.

Todays technology advances at such a speed that often consumers are left in awe of it all. The high tech terminology, the ultra small, ultra portable, metallic or white devices we carry around with us are, to the vast amount of consumers, simply baffling. The Wifi Dowsing Rod aims to work against this. By basing the design for a wireless internet detector on century's old technology, the user feels immediately at home with the product, whilst feeling less intimidated by the simple shape and natural materials.

[via techchee]

September 17, 2009

JeeNode, a low cost wireless sensor node

This JeeNode wireless communication platform looks like a fun and cost effective way to get into experimenting with RF communication. By combining an Arduino-compatible processor (ATmega328) with a low-cost HopeRF radio module, they were able to make a tiny, fairly well featured kit with wireless capability. They are offering them for sale as a kit, or, since it is an open source hardware design, you can just download the PCB layout and roll your own. I can think of lots of applications (remote candle lighter, interactive cat toy) that aren't worth a full xBee-based solution, where it would be handy to have a development board like this that I could just drop in and use.

September 16, 2009

Mobile Art and Code is November 6-8th in Pittsburgh

Interested in the future of mobile computing? Have a killer application or art project that incorporates a wireless element, but don't know where to get started? Then you don't want to miss the Mobile Art && Code Symposium, which is taking place this November in Pittsburgh. Unlike traditional conferences, this one is aimed at anyone who has an interest in the subject, young and old. From their website:

ART && CODE is an event series and online community dedicated to the democratization of computer programming for artists, young people, and the rest of us.
This November 6-8, we continue our successful workshop/lecture series with MOBILE ART && CODE: Mobile Media and Interactive Arts - a symposium on the aesthetic and tactical potentials of mobile, networked and locative media. The three-day event will feature intimate, practical, arts-oriented programming workshops for popular mobile platforms (such as the iPhone, Android, Nokia S90, PBX telephony systems, and SMS hacking) along with an all-day series of free lecture presentations that contextualizes the use of these technologies in a variety of contemporary critical, artistic and design practices.

Conference registration is not yet open, but will be soon.

[photo by Golan Levin]