The Woose Tracker

2019-08-08 10:59 by Ian

This project is a wearable child's toy for team games. I have two children that are young enough to start drawing treasure maps and playing sophisticated games of hide-and-seek. And they both watch cartoons that have characters with wearable computers. So I embarked on a quick project to build something that was meant to be used for fun.


Recent breakout boards

2019-07-28 16:46 by Ian

Last month was busy for hardware. I spent most of the month in KiCAD, and OshPark just shipped the last wave.


Room temperature CO2 reduction catalyst

2019-04-05 11:18 by Ian

I've seen lots of media outlets in Normistan touting a new liquid phase catalyst as a means of removing carbon dioxide from the atmosphere and sequestering it as coal. But my chemistry background tells me that this is never going to be useful for that purpose.

What follows is my rough analysis of the energy requirements of running this reaction with the given catalyst.


Professional advice for new engineers

2019-04-02 09:57 by Ian

What follows is a set of perspectives and principles that I have collected at what might be considered the midpoint of my life as a practicing engineer. They have served me well in professional life.


Coulomb Cranked Creature Candle

2017-12-01 11:36 by Ian

Thursday night
5-yo: "Daddy, can I get a night light?"
Dad: "Sure, buddy. I've got all sorts of glowing things. What do you want your night light to be like?"
"Say no more."


Securely wiping data with minimal tools

2016-11-21 23:27 by Ian

This was an email I wrote to some coworkers explaining how I securely wipe data. I am reproducing it here.


The state of my exposure to cryptographic libraries

2016-09-30 14:56 by Ian

This is a quick overview of the cryptographic libraries I have deep experience with.


The Wrongness: Route and Identity

2016-09-25 01:46 by Ian

Of all the species of Wrongness I commonly observe in the wild, the conflation of Route and Identity is of particular concern at layer 7 of the OSI stack.


My collection of C-related rants

2016-09-24 22:54 by Ian

The thing that needs to be made clear is this: C is a permanent fixture. It is not going anywhere in your lifetime. You can use it, or not.


Intro to DTLS

2016-09-24 21:25 by Ian

This post is aimed at technical readers who know what TLS is used for, but may know nothing about its operation. It is also an attempt to explain why DTLS was developed, and how it applies to IoT.


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