WiFi Time

(mitxela.com)

125 points | by surprisetalk 3 days ago

8 comments

  • ragebol 22 hours ago
    I see `mitxela`, I click. This guy has been making such absolutely beautiful, skillfull, stunning, technical stuff.

    I'd argue that is this post does not go into the 'beautiful' category, but nice technical read nonetheless.

  • schobi 21 hours ago
    Good writeup and solid presentation of wifi timing experiments.

    With his typical product-ready development and polished descriptions, I'm glad there are also some unfinished ideas in his drawer. (my imposter syndrome)

  • swaits 14 hours ago
    Article fails to mention things like hardware time stamping, interleaved NTP, and PTP.
  • mouhamad215 11 hours ago
    This is a good writeup for wifi timing, first time I see this site.
  • Modified3019 22 hours ago
    Wow, first time I’ve seen this site, what a great thing to find.
  • junon 21 hours ago
    > This 8 channel, 24MHz USB logic analyser cost about £5, and they had the audacity to write "Saleae" on it, along with some delightful Comic Sans.

    Devious, lol. My first thought was that it looked like Salae ca. 1990, but didn't think the company was that old.

  • kotaKat 13 hours ago
    I'd kill if we could just put an esp32 in a cheap alarm clock already to do autosetting. It's absurd I walked into my local big box retailers and nobody offers 'self-setting' anymore in person, and the closest thing you can get is a 'we set it in the factory and hope the battery we put in it stays good for a few years' now.
  • moffkalast 17 hours ago
    > But more importantly, what I really should have done was just stick a TCXO on the board. Even without disciplining it, a TCXO will be within a few ppm out of the box. With that we could have simply polled, say, every five minutes and not bothered with anything else.

    For the record, an entry level compensated rubidium oscilator is $5 from Aliexpress.

    • geerlingguy 15 hours ago
      You mean a standard TCXO, but not rubidium—those start in the low thousands new, or $300+ used.
      • moffkalast 12 hours ago
        Hmm TIL those do not contain any rubidium, I thought the price difference was mostly calibration related.