Jeff Geerling
I wanted the most accurate clock possible in my mini rack. Nobody made one, so I made my own, using a Raspberry Pi Pico and a Waveshare Pico GPS HAT: https://www.youtube.com/watch?v=E5qA4fgdS28
The most accurate clock in a mini rack

YouTube
Jan 12 at 3:02pmWeb
Show threadyetztJan 12
@geerlingguy jeff, you have so many clocks, you are basically an overclocker.
Show threadgaryJan 12
@geerlingguy you could have done this w/o the gps hat
Show threadBastian 🦊Jan 12
@geerlingguy love the writeup - instant "i want this too" situation here :))
Show threadSheogorathJan 12
@geerlingguy I just noticed you have a rack with mini-racks :D
Show threaddanielkrahJan 12
@sheogorath @geerlingguy The problem which i have with the title is that the display has no digits for the seconds. So technical "in the backend" the time ist precise, but in the frontend -> Die display the time gets "rounded"
Show threadJeff GeerlingJan 12
@sheogorath haha didn't think of it that way. I also have a mini rack in my 42U rack in the back!
Show threadpoleguy looking for lost toolsJan 12

@geerlingguy I have bookmarked this. I am going to need usec level synchronization across multiple devices for my "#protonpack" telemetry work.

But I first need to get the first device working reliably.

Show threadLogan LandJan 12
@geerlingguy that looks like a fun project! Nice job getting it off the todo list. 😅
Show threadJeff GeerlingJan 12

@logan I was like... I need the space on my desk again.

And then I put two other projects there, one of which will probably sit another 6 months lol

Show threadLogan LandJan 12
@geerlingguy Hey, you’ve got a Queue based system set up at least. What was that movie where he like clones himself? Some days that’d be nice. I also need a couple of background workers, IRL.
Show threadRegionales Retro-RechenzentrumJan 12

@geerlingguy Thanks for sharing, Jeff – I checked your description and stumpled upon “3D fix”. I bet this should be “GPS reception” or similar?

Albeit, “If the 3D fix is lost, the colon goes solid”, is poetic!

https://github.com/geerlingguy/time-pi/tree/master/pico-clock-mini-rack

time-pi/pico-clock-mini-rack at master ¡ geerlingguy/time-pi

Raspberry Pi stratum 1 PTP and NTP timeserver configuration. - geerlingguy/time-pi

GitHub