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#sntp — Public Fediverse posts

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  1. @arstechnica RE: my SNTP Clock project.
    I had a similar itch and turned it into a project to teach myself FreeRTOS, ESP-IDF (on ESP32 DevKitC), KiCAD, PCB layout and ordering, parts sourcing, hand surface mount soldering, FreeCAD, 3D printing, MQTT, and rewrote parts of SNTP and wrote a robust linear regression algorithm for tracking rate and phase error. I developed it during the CoVID-19 pandemic. I had worked with similar things in my embedded software career but never done all these things myself. And used no AI. There is no wrong way to do this. My result looks similar and uses many of the same parts (initially via Adafruit, then direct from Digikey and Mouser). It's a journey of self-reward. #sntp #clock #project #smd #embedded #hobby

  2. @ska @zwol

    Indeed. One can get away with SNTP and a simple tree rather than more complex NTP more often than not in simple SoHo setups.

    Although the Windows hourly poll interval is actually a good practical choice. I experimented with daily on a range of my systems. There were some extreme drifters.

    jdebp.info/Softwares/djbwares/

    #sntpclock #taiclock #SNTP #NTP

  3. IBM PCjr From 1984 Keeps Today’s Clocks Running in Sync - We’ve gotten used to the fact that the clocks on our internet-connected computers ... - hackaday.com/2021/11/09/ibm-pc #retrocomputing #timeserver #ibmpcjr #sntp