Member Since: March 25, 2008

Country: United States

  • From a navigation perspective, your current position does not depend on temperature, so that is not a degree of freedom. The MEMS sensors are affected by temperature, so knowing the temperature the sensors are at may allow one to partially compensate for the errors that are introduced when operating the sensors over a range of temperatures.

  • The photos don’t show the lens specs clearly. What is the focal length of the lens, what is the f number of the lens? What is the CCD sensor size?

    You mention it is Linux compatible, is it Video for Linux (v4l) compatible?

  • Given the new UAS rules from the FAA, how do you plan to hold the event regarding UAS vehicles? I would like to see the UAS portion of the AVC done outside as it has been done in the past. With the right safeguards, in my opinion it should be possible to do so under the UAS rules the FAA has published. Thoughts?

  • Offering the product without the headers installed, but headers included is my preference as it saves the hassle of sourcing headers, and potentially unsoldering them if their product would require odd headers or no headers (like in wearable situations). Soldering .1" headers is a pretty easy task.

    For those who lack the soldering equipment but want to use the product on a breadboard, offering it with the header pre-installed is also nice.

  • Set one fire alarm off at work, and they make you go outside to test things…

  • Nick: Great article. While I can see the potential utility in having a RFID chip to open door locks and a myriad of other uses, I will not be implanting one anytime soon.

    However, we can and should feel free to discuss this and other technologies and their use, and I applaud you for doing so in a very responsible manner.

    Keep up the good work!

  • So, Sparkfun is recommending that users use high power lasers without proper eye protection since lasers improve eyesight?

  • Exposing your eyes to high power laser light is not a good idea. I’d recommend using eye goggles specifically designed for blocking the wavelength being used that block light from the sides as well as the front. Get at least two pair as sooner or later someone else will want to safely watch. A video showing the CNC router cutting aluminum and showing the accuracy that is obtainable would be nice.

  • The fuel shutoff switch is also important during the start of a turbine engine. No fuel is to be delivered before the turbine is at the start RPM, with ignitors on. Otherwise the engine can start with a bang. (This is bad news when it happens.)

  • A LED’s light output is a function of the current flowing through it, not voltage applied to it. The voltage required to achieve a desired constant light level output from a LED varies with temperature. This is why driving them with a constant current source is a good idea.

No public wish lists :(