Uploaded July 2026 | Updated September 2026, 2 weeks ago

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I made Sean Hodgins' PPS Watch. Then I made another. And another.

Now I can tell what time it is. Sorta.

See how to make your own GNSS PPS Watch on Instructables: instructables.com/PPS-Watch-the-Most-Accurate-Watch-That-Doesnt-Tell

Support me on Patreon: patreon.com/geerlingguy
Sponsor me on GitHub: github.com/sponsors/geerlingguy
Merch: redshirtjeff.com
Main Channel: youtube.com/@JeffGeerling
2nd Channel: youtube.com/@GeerlingEngineering