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Joined 2 years ago
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Cake day: June 14th, 2023

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  • I’m usually on the documenting side of things. If something like this starts unfolding, I produce text or HTML files anyway, they go on github/lab/whatever, and I wash my hands of what happens next.

    In the end I write documentation mostly for myself. When the company can’t figure things out over Discord or whatever ephemeral chat interface they use, I get called anyway.




  • Hm, I wonder if I could make these students more miserable by introducing a CPU that permits static operation, then clocking that with a true random number generator?

    So now it has output that is deterministic from the standpoint of the CPU but nondeterministic to an outside observer. Probably wouldn’t affect the O(n) notation though, come to think of it. It would be funny though.


  • To be honest, it’s an accidental lamp. I didn’t have many free GPIO pins on that ESP32 development board, so I needed to push some of the entropy bits though pins that were also assigned to an RGB LED.

    The flashing light was giving me a headache, so I put a diffuser over it.

    It flashes different colors wildly. Because of the nature of the underlying signal and it’s varying frequency, this looks pretty cool if you put a rolling-shutter camera (like on a smartphone) really close to it.