Microsoft’s Attempt At An Arduino Killer — Feels Like A Gimmick

August 3, 2011 by Mike Szczys 119 Comments

Microsoft has thrown its hat into the open source hardware hobby market. Their offering is called the Gadgeteer. We’d love to tell you all about it, but the big M didn’t make it very easy to find out about the device and it’s addons. When we set out to find what processor is running on the board we were happy to see that they do call it an Open Source Hardware project, but no schematic is posted. When we did finally navigate to the hardware documentation it’s a file that must be downloaded and you’ve got to agree to their licensing before grabbing it. So that’s as far as we went, and now we’ll go back to using more open tools.

For those of you who aren’t scared off by the lack of openness, the first thing you’ll notice about this board is that it’s full of connector headers. Instead of the small rows that Arduino uses, the Gadgeteer is meant to use ribbon cables to connect to various breakout boards. You can program for the platform in C# using the .NET framework. This means using Microsoft Visual Studio for those that are already acquainted with the platform. But regular readers will note that we’re always looking for Linux support in our IDEs and you won’t find that here.

[Thanks Hrasdt (and several others) via Slashdot]

How To Add Modular Tools To Your Soldering Platform

August 3, 2011 by Mike Szczys 19 Comments

[Patenomics] has had some trouble finding a suitable place to work on projects in his tiny apartment. Lately he’s taken to using the stove top as a soldering platform and was looking for ways to protect the stove while adding functionality. He built this soldering platform from a couple chunks of pegboard and some hardware store parts. He’s in for under $15 and has a really functional platform that may be worth adding to your solder station.

The two pegboard pieces are held in place by threaded rod and some nuts. This hardware also lends itself to adjustable feet so that you can make the platform level and stable. The holes in the top and bottom sheets line up to receive and securely position some additional tools. Here you can see that bendable copper pipe keeps some alligator clips right where they’re needed, but future plans include adding lights, clamps, and lasers.

This makes a nice work platform to go along with your other portable electronic bench tools. But if you’ve really got the itch, you’ll eventually outgrow all of this and then it might be time to find yourself a hackerspace to join.

Only Losers Text Message On Cellphones – This Guy Carries His Own Teletype For That

August 2, 2011 by Mike Szczys 21 Comments

Yes, that’s an SMS text messaging device. [Mdziewie] decided that texting on a regular cellphone was too boring and decided to build himself an old-school SMS gateway. Here’s a translated link but the formatting of the forum post gets screwed up with the machine translation.

The device he’s using is an ASR-33 Teletype machine, which was introduced to the market in 1963. It is connected to a GSM modem via an ARM microcontroller, the STM32F103. This chip, along with a few electronic components, let [Mdziewie] design an interface that doesn’t require alteration to the ancient hardware. The forum post linked above includes video of this sending and receiving texts. It’s awesomely loud as it hammers away at the paper, and seems to work as expected.

If you hunger for one of your own but don’t have half-century old equipment there’s still hope. Find yourself a typewriter and turn it into a teletype machine.

Chainless Bicycle Will Turn A Few Heads

August 2, 2011 by Mike Szczys 26 Comments

Someone let [Tane] play around with welding equipment and bicycle parts and look what happened! He built a diminutive velocipede. Now that’s just a term for a human-powered land vehicle, but the term fits a bit better as this is missing most of the stuff you’d expect to see on a bicycle.

He started with a mountain bike and a kick scooter, then went to work on both with a hack saw. A bit of welding and angle grinding left him with what you see above. It’s still steerable, but missing are the cranks, chain, and brakes. That’s okay though, the bike is low enough for your legs to reach the ground – you start it up and come to a stop Fred-Flintstone-Style.

[Tane] originally meant to add electric propulsion but didn’t quite get around to it. There’s always the option to add a hub motor to the rear wheel if he has the time and motivation.

Virtual Segway Tours Using The Wii Balance Board

August 2, 2011 by Mike Szczys 3 Comments

Take a tour of anywhere on earth without leaving your home. This virtual Segway tour uses the Wii Fit Balance Board and Google Earth to let the rider control a virtual tour by leaning in the direction they want to travel. It’s the product of a hackathon at SVI Hackspace, a new hackerspace in Stanford’s Huang Engineering Center.

The project was undertaken by four people who had just met for the first time that night. Seven hours later, they had a working system that combines a huge number of software packages; OS X, Osculator, Node.js, Socket.io, the Google Earth API, Monster Milk Truck, and Google 3D Warehouse. Most of those packages are used to get the board talking to the computer and then interpreting the data. Monster Milk Truck – which we had never heard of – is a plugin that lets you drive through Google Earth environments using button presses and arrows (which are simulated by the balance board data translations).

This is a nice complement to some of the other balance board hacks we’ve seen, like the one used to control World of Warcraft. Don’t forget to peek at the video after the break.

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Robots Listen Only To The Leader When Building A Roving Quadcopter Landing Pad

August 2, 2011 by Mike Szczys 22 Comments

Swarm robotics is really starting to produce some interesting results. This image is from the video embedded after the break that show a group of five robots creating a landing platform for a quadrotor helicopter. The four that actually make up the platform are not in contact with each other, but instead following commands from the leader. We’re impressed by the helicopter’s ability to target and land on the moving platform. Takeoff appears to be another issue, as the platform bots stop moving until the quadcopter is airborne again.

These robots are part of a Graduate project at Georgia Tech. [Ted Macdonald] has been working along with others to implement an organizational algorithm that guides the swarm. The method requires that the robots have an overview of the location of all others in the swarm. This is done with high-speed cameras like we’ve seen in other robotic control projects. But that doesn’t discourage us. If you already have a flying robot as part of the swarm, you might as well add a few more to serve as the eyes in the sky.

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Who Knew Thinkpad Batteries Require A Jump Start?

August 1, 2011 by Mike Szczys 59 Comments

Lithium battery packs reaching the end of their life usually have a lot of kick left in them. That’s because they’re made up of multiple cells and it only takes the failure of one to bork the entire battery. One of the most interesting examples we’ve heard of this is in the Toyota Prius, but that’s a story for another time. In this case, [Mika] wanted to resurrect the battery from his IBM Thinkpad T40. He identified the offending cell and replaced it, but couldn’t get any juice out of the battery after the repair.

He was measuring 0V on the output, but could measure the cells instead of the control circuitry and was getting over 11V. Clearly, the control circuit wasn’t allowing an output. We completely understand the concept here (think about that really bad press about exploding laptop batteries). It seems there’s a lockout mechanism when the control circuit loses power. [Mika] managed to get past this by shorting voltage into the control circuit, a method he likes in the video after the break to jump starting a car.

We’ve seen similar cell replacement for power tools, like a Dremel or a Makita drill.

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