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Electronics => Projects, Designs, and Technical Stuff => Topic started by: MarginallyStable on November 07, 2022, 09:34:53 pm

Title: My WWV simulator project
Post by: MarginallyStable on November 07, 2022, 09:34:53 pm

A little toy project I started a while ago. Simulating the WWV audio broadcast on a esp32 based M5stack. Automatically sets UTC time via gps, as well as has local database lookup for local time display. It is by no means "time nuts" quality, but does discipline the audio dma buffer to the gps PPS for "ticks" within a single audio sample of accuracy. Added automatic leap second support via gps information for added fun.

Oh yeah, wait till the end (also includes the voice announcement)

https://youtu.be/IL36d7pj_qc (https://youtu.be/IL36d7pj_qc)

Title: Re: My WWV simulator project
Post by: KK6IL on November 13, 2022, 06:10:02 am

But I'm used to also hearing WWVH in the background.

Title: Re: My WWV simulator project
Post by: MarginallyStable on November 14, 2022, 03:39:20 am

Quote from: KK6IL on November 13, 2022, 06:10:02 am

But I'm used to also hearing WWVH in the background.

Ha,

I didn't mention I can switch to WWVH tones.... I'll have to get another M5stack and have them play simultaneously.     :-DD