FAA’s Drone Registration System Struck Down For Hobbyists

The US Court of Appeals for the D.C. Circuit has struck down a rule requiring recreational drone users and model aircraft pilots to register their drones with the FAA.

This began when [John Taylor], an RC hobbyist and attorney, filed suit against the FAA questioning the legitimacy of the FAA’s drone registration program. This drone registration began early last year, with the FAA requiring nearly all drones and model aircraft to be registered in a new online system. This registration system caused much consternation; the FAA Modernization And Reform Act of 2012 states, ““…Federal Aviation Administration may not promulgate any rule or regulation regarding a model aircraft…”, defining model aircraft as any unmanned aircraft flown within visual line of sight for hobby or recreational purposes. Despite this mandate from Congress, the FAA saw fit to require registration for every model aircraft weighing between 0.55 and 55 pounds, regardless of the purpose of its flight.

In our coverage of the FAA’s drone registration program, we couldn’t make heads or tails of the reasons behind this regulation. In addition to the questionable legality of this regulation, there are questions over the FAA’s mandate to regulate anything flying under the 400 foot ceiling cited in the FAA’s rules. The question of safety is also open — a 2 kg drone is likely to cause injury to a passenger on a commercial flight only once every 187 million years of operation. In short, the FAA might not have the mandate of managing the air traffic, certification, and safety of the nation’s airspace when it comes to model aircraft.

While the Circuit court struck down the rule for registration concerning model aircraft, this still only applies to small (under 55 pounds) planes and quads flown within line of sight. Commercial drone operators still fall under the purview of the FAA, and for them the drone registration system will stand.

KiCAD Best Practices: Library Management

One common complaint we hear from most new KiCAD users relates to schematic and footprint libraries. The trick is to use just one schematic symbol and footprint library each with your project. This way any changes to the default schematic libraries will not affect your project and it will be easy to share your project with others without breaking it. I’ve spent some time refining this technique and I’ll walk you through the process in this article.

We have covered KiCAD (as well as other) Electronic Design Automation (EDA) tools several times in the past. [Brian Benchoff] did a whole series on building a project from start to finish using all the various EDA packages he could lay his hands on. No CAD or EDA software is perfect, and a user has to learn to get to grips with the idiosyncrasies of whichever program they decide to use. This usually leads to a lot of cussing and hair pulling during the initial stages when one can’t figure out “How the hell do I do that?”, especially from new converts who are used to doing things differently.

Read on to learn the best practices to use when using KiCAD and its library management.

Continue reading “KiCAD Best Practices: Library Management”

Monoprice Releases Their Mini Delta Printer (On Indiegogo)

Around this time last year, Monoprice quietly unveiled a small, $200 3D printer. At the time, a fully functioning printer at this price point wasn’t unheard of. A good 3D printer at this price point was. It turned out this printer was actually fantastic and completely changed the value proposition of desktop 3D printers.

In the year since the release of the MP Select Mini printer, Monoprice has been hard at work bringing costs down, reworking designs, and creating an even less expensive printer. Now, it’s out. It’s available for pre-order on Indiegogo right now. Is this still a $150 printer? Not quite: the ‘early bird’ price is $159 with free shipping and August delivery, and a regular price of $169 plus $10 shipping with September or October delivery. There’s also a bundle for $279 that includes the printer, 2kg of filament, and a software package.

The first time we saw this tiny printer was way back in January at CES. It looked to be an extremely capable printer; the only question was if Monoprice could produce it and get it out the door. This would be a tall order; this printer comes with NEMA 17 stepper motors, a heated bed, a 32-bit controller board, and has WiFi enabled.

Here’s what we know about the capabilities of this printer. It’s a fairly standard delta printer with Bowden extruder and a heated bed. PLA and ABS is supported. The printer has auto bed leveling that measures the bed by ‘tapping’ the nozzle against the bed in about a dozen places before printing. From what we saw at CES, the hot end appears similar to the first revision of the $200 MP Select Mini — possibly opening up the door to E3D hot end installations.

Is this printer worth it? Every 3D printer released on a crowdfunding platform should come with the standard warnings, but Monoprice says this machine is in production right now. This raises the question: why release it on Indiegogo when Monoprice already has the whole ‘taking orders for products online’ thing in the bag? I suspect this crowdfunding campaign is just building a buffer; a year ago, the MP Select Mini was perpetually out of stock, and demand far outstripped supply. The same thing will happen with a 3D printer that’s even deeper into impulse buy territory.

In any event, the printer we’ve all been waiting for has been ‘released’, for varying values of ‘released’. The first units will start making their way onto desktops this summer, and we’re going to pick one up and put it through its paces. You can check out Monoprice’s video of this printer below.

Continue reading “Monoprice Releases Their Mini Delta Printer (On Indiegogo)”

If The I And Q Of Software Defined Radio Are Your Nemesis, Read On

For those of us whose interests lie in radio, encountering our first software defined radio must have universally seemed like a miracle. Here is a surprisingly simple device, essentially a clever mixer and a set of analogue-to-digital or digital-to-analogue converters, that can import all the complex and tricky-to-set-up parts of a traditional radio to a computer, in which all signal procession can be done using software.

A quadrature mixer. Jugandi (Public domain).
A quadrature mixer. Jugandi (Public domain).

When your curiosity gets the better of you and you start to peer into the workings of a software defined radio though, you encounter something you won’t have seen before in a traditional radio. There are two mixers fed by a two local oscillators on the same frequency but with a 90 degree phase shift, and in a receiver the resulting mixer products are fed into two separate ADCs. You encounter the letters I and Q in relation to these two signal paths, and wonder what on earth all that means.

Continue reading “If The I And Q Of Software Defined Radio Are Your Nemesis, Read On”

Don’t Be A Code Tyrant, Be A Mentor

Hardware hacking is a way of life here at Hackaday. We celebrate projects every day with hot glue, duct tape, upcycled parts, and everything in between. It’s open season to hack hardware. Out in the world, for some reason software doesn’t receive the same laissez-faire treatment. “Too many lines in that file” “bad habits” “bad variable names” the comments often rain down. Even the unsafest silliest of projects isn’t safe. Building a robot to shine lasers into a person’s eyes? Better make sure you have less than 500 lines of code per file!

Why is this? What makes readers and commenters hold software to a higher standard than the hardware it happens to be running on? The reasons are many and varied, and it’s a trend I’d like to see stopped.

Software engineering is a relatively young and fast evolving science. Every few months there is a new hot language on the block, with forums, user groups, and articles galore. Even the way software engineers work is constantly changing. Waterfall to agile, V-Model, Spiral model. Even software design methodologies change — from pseudo code to UML to test driven development, the list goes on and on.

Terms like “clean code” get thrown around. It’s not good enough to have software that works. Software must be well commented, maintainable, elegant, and of course, follow the best coding practices. Most of these are good ideas… in the work environment. Work is what a lot of this boils down to. Software engineers have to stay up to date with new trends to be employable.

There is a certain amount of “born again” mentality among professional software developers. Coders generally hate having change forced upon them. But when they find a tool or system they like, they embrace it both professionally, and in their personal projects. Then they’re out spreading the word of this new method or tool; on Reddit, in forums, to anyone who will listen. The classic example of this is, of course, editors like the vi vs emacs debate.

Continue reading “Don’t Be A Code Tyrant, Be A Mentor”

The Long Tail Of DIY Electronics

These are the Golden Years of electronics hacking. The home DIY hacker can get their hands on virtually any part that he or she could desire, and for not much money. Two economic factors underlie this Garden of Electronic Eden that we’re living in. Economies of scale make the parts cheap: when a factory turns out the same MEMS accelerometer chip for hundreds of millions of cell phones, their setup and other fixed costs are spread across all of these chips, and a $40 million factory ends up only costing $0.50 per unit sold.

But the unsung hero of the present DIY paradise is how so many different parts are available, and from so many different suppliers, many of them on the other side of the globe. “The Internet” you say, as if that explains it. Well, that’s not wrong, but it’s deeper than that. The reason that we have so much to choose from is that the marginal cost of variety has fallen, and with that many niche products and firms have become profitable where before they weren’t.

So let’s take a few minutes to sing the praises of the most important, and sometimes overlooked, facet of the DIY economy over the last twenty years: the falling marginal cost of variety.

Continue reading “The Long Tail Of DIY Electronics”

Car Security Experts Dump All Their Research And Vulnerabilities Online

[Charlie Miller] and [Chris Valasek] Have just released all their research including (but not limited to) how they hacked a Jeep Cherokee after the newest firmware updates which were rolled out in response to their Hacking of a Cherokee in 2015.

FCA, the Corp that owns Jeep had to recall 1.5 million Cherokee’s to deal with the 2015 hack, issuing them all a patch. However the patch wasn’t all that great it actually gave [Charlie] and [Chris] even more control of the car than they had in the first place once exploited. The papers they have released are a goldmine for anyone interesting in hacking or even just messing around with cars via the CAN bus. It goes on to chronicle multiple hacks, from changing the speedometer to remotely controlling a car through CAN message injection. And this release isn’t limited to Jeep. The research covers a massive amount of topics on a number of different cars and models so if you want to do play around with your car this is the car hacking bible you have been waiting for.

Jeep are not too happy about the whole situation. The dump includes a lot of background for vehicles by multiple manufactureres. But the 2015 hack was prominent and has step by step instructions. Their statement on the matter is below.

Under no circumstances does FCA condone or believe it’s appropriate to disclose ‘how-to information’ that would potentially encourage, or help enable hackers to gain unauthorized and unlawful access to vehicle systems.

We anticipate seeing an increasing number of security related releases and buzz as summer approaches. It is, after all, Network Security Theatre season.