Member Since: August 24, 2010

Country: United States


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Penn State Erie - The Behrend College


http://www.crossfireproductions.org http://www.nashoa.com http://www.zachcross.com

  • Whoops. Just read the whole new product post as you replied. My bad.

    …Thanks for the quick reply though.

  • The dumpster dive has an “in stock” green dot on the Ding and Dent category page: https://www.sparkfun.com/categories/100

    …But doesn’t seem to be “add to cart-able” on the product page: https://www.sparkfun.com/products/12012

    Am I missing something obvious?

  • You can, for all intents and purposes, treat it as an Leonardo* if you so desire – ignoring the linux box.

    However, even if all you do is set it up to get on your WiFi, you get to upload code wirelessly. Which, I at least, really like.

    *There are a few differences, because the Leonardo does away with the separate USB-serial. http://www.doctormonk.com/2012/10/arduino-leonardo-vs-arduino-uno.html

  • I like to use the following “triangles” to remember Ohm’s Law:

    / V \
    / I | R \

    / P \

    / I | V \

    It is easy to quickly & unobtrusively write on some scratch paper, and makes it super simple to derive all the related equations. You just “cover” the variable you need to find, and the operation one needs to perform on the remaining two is visually shown. Ex.

    V? = I * R

    I? = V / R

    R? = V / I

    P = I * V


    EDIT: Not sure what is going with formatting, my triangles are all outta whack & carriage returns aren’t always working…

  • Dimensional Drawing is 404ing…

  • After a quick Google search, this looks pretty affordable: http://www.futurlec.com/Relay_8.shtml

    There are also many different designs flying around in the DIY Christmas Forums:


    Best of luck!

  • I would really, really, really like to go ad-free - but can’t. UStream’s best plan ($999/mo) wouldn’t even come close to enough viewer hours.

    I’ve of course shopped around as well, but haven’t had much luck elsewhere either…

    -Treeduino Hardware Guy

  • Quick! Nobody’s looking, lets give away some merchandise on the front page!

  • Any chance of a publication of some sort containing the information from the class? Pleease?

  • Any chance we could see some code from the Ethernet Pro? The Treeduino Hardware guy would love to compare!