Category Archives: Technology

Simulating Full IPv4 Tables in the Lab

Posted on 2023-05-19 by Nigel VH

I’ve been doing some testing recently with different software based routers, and wanted to give them a test under real world conditions. The current full IPv4 table is larger than 900,000 routes and to get an idea of how well … Continue reading →

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GPS Timing Over USB

Posted on 2023-04-24 by Nigel VH

I recently posted about building this GPS receiver for use in making Stratum 1 NTP servers, and through conversation with some friends, I was interested understanding the performance difference in timing the Pulse-Per-Second (PPS) signal via the hardware serial port, … Continue reading →

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GPS Device for NTP Servers

Posted on 2023-01-21 by Nigel VH

I’ve made a few posts over the years about using GPS devices for precision timekeeping for NTP Stratum 1 servers, and recently the topic came up again with some colleagues to potentially build another one. My previous builds have been … Continue reading →

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Programmable Holiday Lights

Posted on 2022-10-30 by Nigel VH

I’m far from the only person to use addressable LED strips as holiday lights, so I won’t delve too deeply into the details. The project has been on my mind for a few years, as the annual endeavor to fix/install … Continue reading →

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Inkplate Weather Display

Posted on 2022-10-19 by Nigel VH

A little while ago I ordered an Inkplate 10, which is a project pairing old Kindle E-Paper displays with ESP32 microcontrollers. Mine arrived a bit ago, and I’ve been looking for a good project to use it on. Recently we’ve … Continue reading →

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