I haven't had any intellectual property classes yet (taking one in the fall, though), but here's what I've managed to glean from briefly touching on the subject in other classes.
Intellectual property breaks down into a few areas:
Patent
Copyright
Trade Mark
Trade Dress (e.g., shape of a Coke bottle)
Trade Secret
Geographic Markers (e.g., Champagne, Bourbon, Scotch)
I may be missing one or two. Like I say, I haven't had a class. At any rate, patent enjoys much stronger protection than trade secret, though both protect similar things. It's illegal for you to steal and use trade secrets, but if you can reverse engineer them, you can use the "copied" product all you want. People use trade secrets for a variety of reasons. One is that they may be secrets. Patents must be filed well before the product hits the shelves and may tip your hand to your competitors (because the product has to be described in more or less detail with drawings and such in the patent application). Also, some things simply can't be patented for a variety of reasons, like they're too obvious. For example, KFC would never be able to patent their 11 herbs and spices recipe. They could sue and win an employee who left the company and started a competing company using their trade secrets. But they would have no recourse against someone who figured out the recipe through trial and error. But reverse engineering won't get you around a patent. If I've patented an idea or a product, forget about it. For better or worse you can't make a too-similar product. Period.
Printed circuit boards, from what I understand, are actually covered by copyright. I find this really strange. Copyright protects expressions, not ideas. So I can't plagiarize J.K. Rowling, but I can certainly write another book about a kid who finds out he's a wizard and is whisked away into a fantasy world of wizards and witches. The only thing I can think of is that corporations lobbied for copyright protection of circuit boards because copyrights last MUCH longer than patents. Still, though, a patent lasts 20 years and I can't imagine any given circuit board design is of much use 20 years later.
Anyway, the DMCA is concerned with copyright. And the anti-circumvention stuff says:
No person shall circumvent a technological measure that effectively controls access to a work protected under this title.
I suppose the argument would go:
1- The printed circuit board is a copyright protected work.
2- The casing and screws are a technological measure controlling access to the copyrighted work inside.
3- Thus, opening the controller is a violation of DMCA
I think this argument fails for a bunch of reasons. One is that number 2 up there is a pretty tough sell, IMO. The case is there to physically protect the circuit board, not as a copyright protection. And in any case, it's certainly not
effectively controlling access if it can be opened with a screwdriver.
Remember that making changes to a copyrighted work is not at all illegal. You can write in a book all you want. The primary target of copyright is the unauthorized copying of protected works. You might run into an issue if you were selling these sticks because commercial activity is given much closer scrutiny than personal activity. But I can hardly imagine you would ever have an issue if you were altering these sticks for your own purposes. I'd stop short of guaranteeing it, cos the law really can be an ass sometimes. But I think it's super unlikely.