Hackaday Links: November 29th, 2012

EMC2 CNC keyboard labels

If you’ve got a dedicated computer running EMC2 for CNC control you may be interested in these keyboard labels. [Rich] mentions that they use the labels for their engraver at the Connecticut Hackerspace. Just print them out and glue them in the face of the keys.

Dev board seminars and freebies

[Mike] wrote in to tell us STM is giving away samples of the STM32 F3 Discovery again. But you can also get in on some free seminars. One is an online webinar for TI’s Launchpad family, the other is for the F3 Discovery board and is being held all around the US.

Replacing batteries with USB power

[Johan] didn’t want to use batteries for the light on the microscope he uses when working with SMT parts. He added a few components with let him power the device from USB instead.

MSP430 VU meter uses FFT

Here’s an MSP430 using Fast Fourier Transform for signal processing. There’s very little explanation, but apparently this collection of FFT related material was used heavily in the project. [via Reddit]

Cell Racr

If you’re looking for a new office game you might consider Cell Racr. It pits your cellphone’s vibrating motor against everyone else’s. Just place the phone on an incline and repeatedly dial its number to advance toward the finish line.

37 thoughts on “Hackaday Links: November 29th, 2012

    1. Yeah it’s a bit odd, why write a whole thing about it with pictures and then not add the damn file?

      Reminds me of all those articles you see lately that are also just describing that they did it in a ‘social blog’ fashion but give no info on parts and such, I hate that nonsense and think it’s not for HaD.

    2. Agreed, I reposted to some other places where emc enthusiast’s lurk thinking I was being helpful saving them having to mess round with sizes etc by using a template, only to find its just some pictures of a keyboard with a printout glued to it…

      Poor hackaday, very poor. And more fool me for reposting without checking.
      But as they say, fool me once shame on you, fool me twice, shame on me. I think I’ll remove HaD from my bookmarks to save it happening again.

    1. Nice helpful complete comment for those that use such keyboards.

      On the subject of durability, I in the past tried to put some stickers on keys and I was amazed how hard it is to get a durable thing going, amazing how much wear a key actually experiences.
      I tried paper with a coating, I tried vinyl, they both didn’t last long enough, and the glue was a big issue, And I’m not familiar with the compound mentioned on the website HaD mentions.

    1. ”giving away samples of the STM32 F3 Discovery” is also true for the definition of “free”, as in button text stating “Register for your FREE KIT”.

      1. I don’t understand how y’all are missing it. Click the first link (” giving away samples of the STM32 F3 Discovery”) and then, on that page, click “Register for your FREE KIT”.

        Might be US-specific, but the site doesn’t mention so.

        1. The ST giveaways are always US/Canada only. As steaky says – so cheap you might as well buy one if you want an ARM dev kit. (I just bought 2 from Farnell and a similar F0 kit. Got 2 F4s already.)

  1. I’d be into Cell Racr if it didn’t have a retarded name. Just put the damn “E” in there, Flickr and Tumblr are already enough of a bane of humanity.

    1. I think a “Cell Gravity Racr” would be better, just have everyone drop their phone and see which hits the ground first!

  2. Thanks for the STM freebie information. I am working on extending the guided model rocket as described in hack a day using an arduino. I figure why not try the advanced capabilities of the STM especially since I can get a board for free.

    The following is my project description. See if you can spot the prankster among the serious.

    Cost effective UAV Neutralization Technology

    Develop a simple, robust, modular, test system adaptable for beam riding(SARH/SALH), wire/fiber and autonomous missile guidance.
    Focus is for development of cost effective UAV neutralization technology utilizing off the shelf components.
    Launch platforms vary from MANPADS, Fixed Ground, and Aerial to support various intercept profiles including look down shoot down.
    Control systems use aerodynamic and/or thrust vector control.
    Propulsion system is modular to support testing of various solid fueled motors from hybrid to sucrose based.
    All rocket airframes are 57.4 mm diameter standard. Length varies depending upon the propulsion, guidance and kill package.

    Additions to core guidance system to include semiconductor based IR homing, visual pattern recognition, acoustic signature, chemical signature and laser guidance.

    Intent is to evolve system to coordinate targeting, launch and intercept for multiple missiles simultaneously using various guidance packages to determine the most effective individual and combination systems.

  3. I just wanted to comment that EMC2 had a name change due to a cease and desist from some big company that uses EMC as their name. EMC2 is now LinuxCNC.

    1. Alleged “cease & desist”. No proof of any such notice has been presented, so any claim that a big bad wolf has been throwing his weight around is just plain BS.

  4. Have you ever seen those plastic keyboard covers that used to be popular in dirty machine and mechanic shops? It is a simple thing to put a label underneath one of those that lasts. Have not seen those in ages though.

    For the cell racer, just make an android app that kicks off the motor. Why keep dialing it?

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