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A comment on Show HN: Turing Pi 2 – a compact ARM cluster with 32 GB RAM.

Re:Show HN: Turing Pi 2 – a compact ARM cluster with 32 GB RAM by capt_hotpants on Tuesday October 20, 2020 @07:13AM (#24836061)
Any thoughts on keeping accurate RTC time on these things at sites with poor internet connectivity, weird latency or restrictions on outbound NTP?

I'm thinking a nice addition would be a small module to plug on top of the 40-pin GPIO connector with a GPS receiver in it and an antenna attached. The attached node could run NTP and pull accurate time from satellites. Throw in 3 of the modules, and NTP can use quorum to keep the time accurate even if one GPS module fails.

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Re:Show HN: Turing Pi 2 – a compact ARM cluster with 32 GB RAM by jmnicolas on Tuesday October 20, 2020 @08:20AM (#24836443)
I can't think of anything better than a GPS receiver.

About 10 years ago we had a legacy system that was using a weird shaped (think UFO spaceship) FM radio receiver to get time. I never understood why our provider chose that over a simple USB GPS receiver.

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