ataary
I built a little web app to solve a problem that sounds trivial until you actually need it: turning a highway milepost into GPS coordinates. The code is open source, available on GitHub, and a demo is available at mapsdemo.johnsonfarms.us. The problem If you’ve ever had to say exactly...
Austin
Welcome to Austin’s Nerdy Things, where we spend years chasing nanoseconds that nobody asked us to chase. Five years ago, I started this blog by building a microsecond-accurate NTP server with a Raspberry Pi and PPS GPS. Then I went simpler – a $12 USB GPS for millisecond-accurate NTP because...
Austin
I’ve written before about building microsecond-accurate NTP servers with Raspberry Pi and GPS PPS, and more recently about revisiting the setup in 2025. Both posts focused on the hardware setup and basic configuration to achieve sub-microsecond time synchronization using GPS Pulse Per Second (PPS)...