Code Craft: Using Eclipse For Arduino Development

October 30, 2015 by 43 Comments

As we work on projects we’re frequently upgrading our tools. That basic soldering iron gives way to one with temperature control. The introductory 3D printer yields to one faster and more capable. One reason for this is we don’t really understand the restrictions of the introductory level tools. Sometimes we realize this directly when the tool fails in a task. Other times we see another hacker using a better tool and realize we must have one!.

The same occurs with software tools. The Arduino IDE is a nice tool for starting out. It is easy to use which is great if you have never previously written software. The libraries and the way it ties nicely into the hardware ecosystem is a boon.

When you start on larger projects, say you upgrade to a Due or Teensy for more code or memory space, the Arduino IDE can hamper your productivity. Moving beyond these limitations requires a new, better tool.

Where do we find a better tool? To begin, recognize, as [Elliot] points out that There is no Arduino “Language”, we’re actually programming in C or C++. We chose which language through the extension on the file, ‘c’ for C and ‘cpp’ for C++. An Arduino support library may be written in C or C++ depending on the developer’s preference. It’s all mix ‘n match.

Potentially any environment that supports C/C++ can replace the Arduino IDE. Unfortunately, this is not easy to do, at least for inexperienced developers, because it means setting up the language tool chain and tools for uploading to the board. A developer with that much experience might eschew an integrated development environment altogether, going directly to using makefiles as [Joshua] describes in Arduino Development; There’s a Makefile for That.

The reality is the Arduino IDE is not much more than a text editor with the ability to invoke the tools needed to compile and download the code to the Arduino. A professional IDE not only handles those details but provides additional capabilities that make the software development process easier.

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Hyperloop Test Track To Be Built In California

October 30, 2015 by 58 Comments

Next year Hyperloop Transportation Technologies is planning on breaking ground on a five mile test track for the Hyperloop concept as originally proposed by [Elon Musk] back in 2013.

It’s being built around Quay Valley, which is a large real-estate development in California. In addition to serving as a test-bed for different pod designs and to further the technology as a whole, they’re planning on being able to transport passengers at mind-boggling speeds (how’s 760mph sound?) by as soon as 2018. While [Elon Musk] has no real involvement in the company, he is extremely supportive of the company and seeing his idea come to life — who wouldn’t? He once described the Hyperloop concept rather eloquently…

If the Concorde, a rail gun and an air-hockey table had a three-way, the Hyperloop would be the love child.

That’s certainly one love child we’d like to see. Oh and the cost? Apparently only $150 million. Seems about right.

[via Popular Science]

The Key To Modular Smartphones

October 30, 2015 by 48 Comments

Cellphone startup Fairphone is now taking pre-orders for their modular smartphone, which is expected to start shipping in December of this year. Although I’m much more familiar with Google’s project Ara, this is the first modular concept to make it to market. It does lead me to a few questions though: is this actually a modular smartphone, and how widely will modular concepts be adopted?

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Palm Interface Has You Suggest Where Self Driving Car Should Go

October 30, 2015 by 24 Comments

These days, our automobiles sport glittering consoles adorned with dials and digits to keep us up-to-date with our car’s vitals. In the future, though, perhaps we just wont need such vast amounts of information at our fingertips if our cars are driving themselves around. No information? How will we tell the car what to do? On that end, [Felix] has us covered with Stewart, a tactile gesture-input interface for the modern, self driving car.

Stewart is a 6-DOF “Stewart Interface” capable of both gesture input and haptic-output. Gesture input enables the car’s passenger to deliver driving suggestions to the car. The gentle twist of a wrist can signal an upcoming turn at the next intersection; pulling back on Stewart’s head “joystick style” signals a “whoa–slow down, there, bub!” Haptic output via 6 servos pushes around Stewart’s head in the car’s intended direction.  If the passenger agrees with the car, she can let Stewart gesture itself in the desired direction; if she disagrees; she can veto the car’s choices by moving her hand directly against Stewart’s current output gesture. Overall, the interface unites the intentions of the car and the intentions of the passenger with a haptic device that makes the connection feel seamless!

We know we’re not supposed to comment on the “how” with art projects–but we’re engineers–and this one makes us giddy with delight. We’re imagining those rc car shock absorbers dramatically dampening the jittery servos and giving the user a nice resistive feel. Interconnects are laser cut acrylic, and the shell is a smoothly contoured 3d print. We’ve seen Stewart Interfaces before, but nothing with the look-and-feel of a sleek design feature on its way to being dropped into the cockpit of our future self-driving cars.

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EFF Granted DMCA Exemption: Hacking Your Own Car Is Legal For Now

October 30, 2015 by 19 Comments

The Digital Millennium Copyright Act (DMCA) is a horrible piece of legislation that we’ve been living with for sixteen years now. In addition to establishing a de-facto copyright for the design of boat hulls (don’t get us started!), the DMCA includes a Section 1201 which criminalizes defeating encryption in cases where such could be used to break copyright law.

Originally intended to stop the rampant copying of music in the Napster era, it’s been abused to prevent users from re-filling their inkjet cartridges and to cover up rootkits. In short, it’s scope has vastly exceeded its original aims. And we take it personally, because we like to take stuff apart and see how it works.

EFF_LogoThe only bright light in this otherwise dark, dark tunnel is the possibility to petition for exemptions to Section 1201 for certain devices and purposes. Just a few days ago, the EFF won a slew of DMCA exemptions, including the contentious exemption for bypassing automobiles’ encryption to check out what’s going on in the car’s firmware. The obvious relevance of the ability for researchers to inspect cars’ firmware in light of the VW scandal may have helped overcome strong pushback from the car manufacturers and the EPA.

The other exemption that caught our eye was the renewal of protection for people who need to hack old video games to keep them playable, jailbreak phones so that you can run an operating system of your choosing on it, and even the right to copy content from a DVD for remixes and excerpts.

This is all good stuff, but it’s a little bit sad that the EFF has to beg every three years to enable us all to do something that wasn’t illegal until the DMCA was written. But don’t take my word for it, have a listen to Cory Doctorow’s much more eloquent rant.

(Banner image courtesy [Kristoffer Smith], who we covered on car hacking way back when.)

Using RF To See Through Walls

October 29, 2015 by 21 Comments

This is some seriously cool stuff. Researchers at MIT recently came up with a device that can “see” through walls. It can actually identify a person (or people) behind a solid object.

They call it RF-Capture and it uses radio waves to identify people. Kind of like some high tech radio-frequency sonar. Using a very complex algorithm it can reconstruct the human figure by analyzing the various reflections of the signals transmitted. It’s so accurate it can even distinguish between different people based on size and posture, and even trace a person’s handwriting in the air.

Sounds like whatever they’re doing, it’s probably blasting a lot of radiation to do it. You’d think so, but no.

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Hacking Diabetes Meters, Towards An Artificial Pancreas

October 29, 2015 by 51 Comments

We’ve covered a number of diabetes-related hacks in the past, but this project sets its goals especially high. [Tim] has diabetes and needs to monitor his blood glucose levels and administer insulin accordingly. As a first step, he and a community of other diabetics have been working on Android apps to log the data when combined with a self-made Bluetooth re-transmitter.

But [Tim] is taking his project farther than previous projects we’ve seen and aiming at eventually driving an insulin pump directly from the app. (Although he’s not there yet, and user input is still required.) To that end, he’s looking into the protocols that control the dosage pumps.

We just read about [Tim] in this article in the Guardian which covers the diabetic-hacker movement from a medical perspective — the author currently runs a healthcare innovation institute and is a former British health minister, so he’s not a noob. One passage made us pause a little bit. [Tim] speaks the usual praises of tech democratization through open source and laments “If you try to commercialize [your products], you run up against all sorts of regulatory barriers.” To which the author responds, “This should ring alarm bells. Regulatory barriers are there for a reason.”

We love health hacking, and we’re sure that if we had a medical condition that could be helped by constant monitoring, that we’d absolutely want at least local smart-phone logging of the relevant data. But how far is too far? We just ran an article on the Therac-25 case study in which subtle software race conditions ended up directly killing people. We’d maybe hesitate a bit before we automated the insulin pump, but perhaps we’re just chicken.

The solution suggested by [Lord Ara Darzi] in the Guardian piece is to form collaborations between patients motivated by the DIY spirit, and the engineers (software and hardware) who would bring their expertise, and presumably a modicum of additional safety margin, to the table. We like that a lot. Why don’t we see more of that?