5 ms·
Sorry if this is a dumb question, but do you guys not have radio controlled clocks outside of Europe? If I got it right, the only purpose of this project is to
by ortichic 7mo ago
Sorry if this is a dumb question, but do you guys not have radio controlled clocks outside of Europe?
If I got it right, the only purpose of this project is to always display the correct time. Radio controlled clocks do exactly that. They are cheaper than the one ESP board, and run years on a single AA battery. No WiFi, tinkering, setup, or cables necessary
- qwertygnu 7mo agoGoogled "radio controlled clock" and seeing results from $20-$200, lots of inconsistency in what the product is.
- alnwlsn 7mo agoThese are usually marketed as "atomic time" or "atomic clock" here in the US.
- jcalvinowens 7mo agoIf you think this is overengineered, I built one that will really offend you: https://github.com/jcalvinowens/wallclock https://github.com/jcalvinowens/wallclock :) The point is to have fun and learn something, not really to solve a problem in a practical sense. The radio controlled clocks are extremely unreliable where I live.
- haunter 7mo agoThere are time signal stations all over the world, WWV is the most prominent US one https://en.wikipedia.org/wiki/WWV_(radio_station) https://en.wikipedia.org/wiki/WWV_(radio_station) https://en.wikipedia.org/wiki/Radio_clock#List_of_radio_time_signal_stations https://en.wikipedia.org/wiki/Radio_clock#List_of_radio_time...
- deleted 7mo ago[deleted]
- deleted 7mo ago[deleted]
- js2 7mo agoWe do, but I've never had a WWVB clock work for me in North Carolina. I've tried a few of them. The US is a big place and for whatever reason, there aren't that many clock signal transmission towers (AFAIK, the only one in the US is in Colorado).
- moduspol 7mo agoI'm in WV, but could only get my clock to set itself when put on the correct SW-facing wall. Obviously it defeats the purpose a bit if I need to move my clock to a different wall and wait 12-24 hours for it to set itself.
- KaiserPro 7mo agoThere is (https://www.nist.gov/pml/time-and-frequency-division/time-services/time-signal-broadcast-stations https://www.nist.gov/pml/time-and-frequency-division/time-se...) and in some conditions you can receive the time signal in the UK. Our office manager bought some US tuned radio wall clocks, and every now and then they would jump 8 hours forward. I assume it was down to solar weather making propagation changes (https://en.wikipedia.org/wiki/Sporadic_E_propagation https://en.wikipedia.org/wiki/Sporadic_E_propagation)
- BenjiWiebe 7mo agoCould easily be solar weather related propagation changes, but probably not Sporadic E specifically - that's much higher frequencies.
- bux93 7mo agoAn already radio controlled clock would probably be a better starting point to GPSify or NTPify too - at least the one I have already has the feature that it can move the hands to an arbitrary position (when you replace the battery and it syncs again).