Got the Time? Ben Leikin Does, Thanks to a Stratum-1 Timeserver Built From a Raspberry Pi
Developer Ben Leikin has released everything you need to turn a Raspberry Pi and a low-cost Global Navigation Satellite System (GNSS)receiver into a Stratum-1 time server for your network — delivering a claimed sub-microsecond accuracy.
"[I] spent the last few weekends building out a hardware time reference using a [Raspberry] Pi 4 (could use any [Raspberry] Pi really as it uses almost no CPU power and memory) and it's been a fun rabbit hole," Leikin writes of the project. "The main lesson though: antenna placement matters way more than the GPS module quality. Spent more time moving the antenna around than doing anything else. Got from 1–2 satellites in a fix to consistently 8–11 just by finding a window with a clearer southern view."
A $15 GPS receiver and any Raspberry Pi can deliver high-precision time across your whole network. (📷: Ben Leikin)
The Global Navigation Satellite System (GNSS), of...
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