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RaspiWWV #piday #raspberrypi @Raspberry_Pi

From Russell Grokett on Hackster.io:

Remember the days when you would sit listening to WWV time signals on your shortwave radio (tick, tick, tick… At the tone, the time will be…)?

(Hear it on YouTube above)

Oh! You missed out on that? Now you can (re-)experience those moments and have your own WWV clock, no shortwave radio and no Internet connection required. Isn’t that what you always wanted?

Actually, this is a project to help show you how to connect a tiny OLED screen, a real-time clock (RTC) and an audio amplifier all to a single Raspberry Pi Zero! All with the bonus of being able to listen to WWV time “signals” anytime you wish.

Unlike the real WWV, the audio time signals as well as the admittedly tiny clock display will be only accurate to about one second of drift per day using the typical low-cost RTC module. You can improve this by using a higher quality (more expensive) RTC, or by just leaving the Raspberry Pi connected to the Internet, but this would never replace the atomic clocks of the real WWV. (See precision time keeping with Raspberry Pi articles, such as https://www.satsignal.eu/ntp/Raspberry-Pi-NTP.htm… )

Read more and see more on YouTube



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1 Comment

  1. Wow! Does this bring back memories. My first watch was a Hawaiian Punch watch. I would set it every morning using the Hallicrafters shortwave radio I had in my bedroom to either WWV or CHU Canada. It drove my mom crazy having to listen to that every morning.

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