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Software is like sex: It’s better when it’s free.— Linus Torvalds
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Category Archives: Electronics
I’ve been playing with chorded input devices for years, and got the itch again recently.
I gave a quick primer on 3D printing as a Keeping Current (CS departmental) seminar yesterday. It’s not a great standalone deck but posted (in reduced quality, gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=/path/to/output.pdf /path/to/input.pdf is good magic). It … Continue reading
Some years ago the KAOS lab bought a number of Netgear WNR3500L routers to use as network glue. A pair of them have been in constant service since 2011 in the lab and machine room, and both of those died … Continue reading
In another episode of fixing things for the Cameras as Computing Systems class I’m taking, I made a PKGBUILD that apparently correctly builds and installs chdk-ptp on Archlinux systems. Chdk-ptp is a tethered-control application for Canon cameras running CHDK, that … Continue reading
There was a problem with the Lab’s Makergear M2 recently that is worth writing up. Last weekend, we had it off site for a demo event for a group of highschoolers interested in engineering and medicine, which included assembling samples … Continue reading
As a quick “look at me being a good citizen,” a “class projects sometimes do have positive externalities,” and so that I have a convenient pointer/local copy, I just touched up the script for building a GCC 4.5 toolchain suitable … Continue reading
Since I’ve been documenting failure modes in electronics, another tale of electronic woe regarding N109 type knockoff Lenovo 90W AC adapters. I have a couple T series ThinkPads, which conveniently all use the same 20V 90W supplies with the same … Continue reading
The Thrunite T10 light I’ve been carrying failed to come on when I reached for it the other day. It wasn’t a dead battery, and, yesterday, I determined that the 24mo warranty offers free repair contingent on you paying for … Continue reading
I’ve been working on my Shapeoko in little fits and spurts that individually haven’t been terribly documentation worthy, but in aggregate are pretty interesting. Continuing from where I left off in Shapeoko: Part 5, I’ve iterated a bit on belt … Continue reading