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Amanda Wozniak
1,890 followers -
24/7 engineer
24/7 engineer

1,890 followers
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This is exciting! 
Redwire's entry into the IPSO 2013 Challenge: http://www.ipso-alliance.org/challenge2013

This is an energy harvesting current transformer (and a TH12 for good measure :) ) The current transformer measures the current on the load and it's sampled and transmitted wireless to a server on the internet. The device is powered by harvesting a very very small amount on energy from the load current --- no batteries or other wires are needed. By doing so we make installation much easier (and cheaper) so that more buildings can get end-use power monitoring and operate more efficiently.

Part 1:
IPSO 2013 Redwire Harvesting CT setup Part 1

Part 2:
IPSO 2013 Redwire Harvesting CT setup Part 2 (for public)
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May 17, 2013
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Did you ever doubt that a grass roots movement in engineering and education could reach hundreds of thousands of students and educators? DOUBT NO MORE. Open Source Hardware is now a national deal. That's the power of companies like Adafruit and the OSHW community. 
I was selected to join President Obama in a Fireside Hangout this Thursday 2/14 at 4:50pm EST on Google+!

We’ll discuss issues that are top of mind for citizens, and I’d love you all to help shape this conversation. Submit your questions to http://www.youtube.com/whitehouse and the President will answer questions that are voted to the top.

Don’t forget to RSVP here for a reminder to tune in on Thursday- http://goo.gl/7pxfM.

+The White House +Google+ 
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Anyone in the Greater Boston Metropolitan Area have an ESD simulator that I could borrow for about two weeks? I need to, uh.... zap some, uh.... circuits.

This is actually a serious question. I'm trying to specifically diagnose and then mitigate why we have an intermittent failure, and our best guess is ESD sensitivity. 

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Anyone making any type of device that has to have reliable operation should think about both security models, the robustness of any multi-layer protocol abstraction, and also think about maybe not about making the input parser/radio interface Turing-complete. But the "insulin pump hacking" from DEFCON has definitely done its job of starting an industry wide dialog about device security.

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I love Flylogic Engineering. This. Much.

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The Wyss Institute is growing! We're looking to hire a Staff Electrical Engineer and Staff Mechanical Engineer in the Anticipatory Medical Devices Platform. So, in the event that you ever thought you'd like to both have my job AND work with me, too, then click through for the posting and apply.

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HANDYPANTS - Happiness is understanding conversion of competing datasheet metrics. And, by the way, if you've never gone through the process of reverse-engineering a transistor datasheet to find all the fundamental properties of the junctions... you should. It will teach you a very important lesson on specsmanship.

http://www.coe.montana.edu/ee/jshaw/classes/EOSystems/F10/ClassResources/EE482_F10_LEDPhotoRadioConversions.pdf

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Repost from the 'fruit: I love it when people work out the math to make generalized tools to solve useful problems. It takes the requirement for intuition and "feel" out of construction and helps put design in the hands of novices. WHICH IS FANTASTIC.

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The ghost of Grace Hopper will come back from beyond the grave to torment anyone who says "women can't program." Zach Weiner... I.... I think I love you. Also, if you (yes, you!) don't know who Grace Hopper is - we can't be friends anymore. But you can possibly begin to make up for it by watching some of her interviews (which abound in plenty on the YouTubes) to see how amazing she really was.

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I encourage you to sign Bunnie's letter to the Library of Congress - or send your own.
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