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dnedic

HN member
Joined
Thu, Aug 25, 2022, 10:18 PM UTC
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225
Public activity
47 items

About dnedic

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Recent public activity

  1. story
  2. comment
    Comment #40342431

    How do you inspect what is happening then without having ADCs sampling every weight, taking up huge die area?

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    Comment #40125125

    Self-hosting and homeserver stuff! I started out when I got a new phone, and didn't know what to do with the old one. One of the ideas I had was a homeserver. Turns out it's not tr…

  4. comment
    Comment #40059067

    The quote saying that people from 18 to 25 need a safe environment to "explore the world" and "find their purpose" seems very infantile and backward. First off, it's not realistic …

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    Comment #39922944

    It really depends on what you classify under embedded. Everything more expensive than a Padauk or newer than PIC will have hardware support for the stack, and also most likely have…

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    Comment #39556126

    Bipartite buffers are amazing and criminally underused. For those looking for C and C++ implementations you can check out my libraries: lfbb and lockfee: https://github.com/DNedic/…

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    Comment #39506699

    I am not sure how colleges work, but even at reputable universities this happens. Professors who have big fail rates will often be reprimanded for this, regardless of whether it's …

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    Comment #39441109

    Why do you assume electric batteries have to be used? We've had things like reservoir lakes for hydro plants for a long time. Energy can be stored in more ways than electrical.

  9. comment
    Comment #38967133

    If you're interested about practical uses of atomic operations, I wrote lockfree: https://github.com/DNedic/lockfree , a collection of lock-free data structures meant to be readabl…

  10. comment
    Comment #38848751

    GNSS satellites talk to base stations on earth to get correction data using the measurements they obtain (including measurements obtained by tracking satellites from the ground). I…

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    Comment #38599059

    Undefined behavior will bite you eventually. Updated the compiler? You have no idea what to expect. Changed lines of code related to that part of code? Again, no idea what to expec…

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    Comment #38398270

    The boot roms in ESP chips are not particularly small anyway, aside from bootup and flashing functionality, they also embed radio functions for WIFI, Bluetooth, Zigbee/Thread, prin…

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    Comment #38189440

    Still far more expensive than any electric car including the same Tesla model in China.

  14. comment
    Comment #38188005

    Just came back from Shanghai, same situation, BUT from talking to people there are three big reasons for that: 1. The government built the EV charger infrastructure so that even th…

  15. comment
    Comment #38108476

    I think the electricity savings pale compared to the value of human time saved.

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    Comment #37790800

    This won't work for: 1. Larger than word size variables 2. Out of order CPUs 3. On multicore CPUs when another core handles the signal Atomics must be used here for proper synchron…

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    Comment #37735105

    For what it's worth, my wife just finished her Master's thesis using this suite, she had very little adjustment time needed moving from Word.

  18. comment
    Comment #37661518

    Humans can't be forced to evaluate every piece of code 100000 times in an hour. LLMs can.

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  21. comment
    Comment #36765135

    I wouldn't say this is necessarily a bad thing. The S3 is the most powerful ESP chip to date in terms of raw CPU power and even has AI and DSP instructions, esoteric things like di…

  22. comment
    Comment #36490506

    If you want more than a spsc queue, I've written `lockfree`, a collection of SPSC and MPMC data structures along the same principles the author here used: https://github.com/DNedic…

  23. comment
    Comment #36346635

    This feels extremely weird to read as someone naiively approaching networking where I actually want to talk to people, not just their professional side. On the other hand it might …

  24. comment
    Comment #36119850

    The trick is to not even have strings in the binary. Take a look at trice, defmt and logging in ESP-IDF.

  25. comment
    Comment #35917245

    Except it's open source and anyone can audit the code any time.