• Engineering

    Un-Expected Value and a Slow Snake

    I just finished the latest course towards my Masters in Electrical Engineering at UW – Probability and Random Processes for Electrical Engineering. And yeah, I got an A (>100%). And I’m glad I took it even though I had, years and years ago, taken Stochastics at Johns Hopkins. Although core concepts like probabilities, random variables and the like haven’t changed, the options available to engineers for numerical methods seem more practical now. Our final project involved using a Naïve Bayes Classifier to classify handwritten digits from the large MNIST database ( http://yann.lecun.com/exdb/mnist/ ). First you train your classifier against 60,000 training images (handwritten digits from 0 to 9) and then…

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  • Engineering,  Leadership

    Back in the Engineering Saddle Again

    A little over two years ago, fresh off the heels of helping ready my company’s part of the Internet for the GDPR, I offered to again take up the leadership of a small team I had led before – this time to launch another SaaS offering – this time in payments. The opportunity aligned well with my personal goal of leveling up my leadership skills with what was then an eye on a director of engineering role, and it also aligned with a engineering roadmap I had set forth nearly five years ago to get hardware related work (specifically integrating our software with mobile payments and point of sale hardware)…

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  • Engineering,  Hardware

    Z Nope

    I was excited to start setting up the Z-Wave bridge. That excitement has dimmed. I’m got the device in the mail, whipped out the installation instructions, plugged it into my Pi and… The first step was to run a curl command to a http site and pipe it to sudo bash. Eeek. I mean I know people joke that the “S” in IoT is for “Security” but this wasn’t funny. I’d never ever do such a thing on a device and trust that device again. I proceeded against my better judgement to see how far the rabbit hole went. (I’ve since disconnected the Pi from the Ethernet and will reflash…

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