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by capt_hotpants
2068 days ago
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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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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.