It's about time...
Jeff Geerling
Mar 28, 2025 14:00
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Chapters
I control time now! At least, in the studio.
PTP, NTP, GPS, PPS, what's it all about? In this first part to a new time series, I'll show you how I built a Raspberry Pi grandmaster time server for my network. Then I'll see how it compares to a commercial grandmaster clock from MasterClock!
Mentioned in this video:
- My Time Pi project: https://github.com/geerlingguy/time-pi
- Time HAT V4: https://www.tindie.com/products/timeappliances/timehat-i226-nic-with-pps-inout-for-rpi5/
- GPS Module: https://www.tindie.com/products/timeappliances/ocp-m2-neo-m9n-gnss/
- Masterclock CLDNTD12 Analog/Digital NTP Clock: https://www.masterclock.com/digital-analog-clock-cldntd12.html
- Masterclock NTDS112 Rackmount NTP Clock: https://www.masterclock.com/ntds112-ntp-display.html
- The Atlantic - Where Time Comes From: https://www.youtube.com/watch?v=MfV_vV0sGlo
- US Naval Observatory Tour: https://www.youtube.com/watch?v=SnGpdv5J4Ao
Support me on Patreon: https://www.patreon.com/geerlingguy
Sponsor me on GitHub: https://github.com/sponsors/geerlingguy
Merch: https://www.redshirtjeff.com
2nd Channel: https://www.youtube.com/@GeerlingEngineering
3rd Channel: https://www.youtube.com/@Level2Jeff
Contents:
Science & Technology
#time
#timing
#masterclock
#grandmaster
#ptp
#ntp
#ocp
#tap
#appliance
#appliances
#network
#protocol
#precision
#precise
#signal
#sma
#gps
#pps
#pulse
#per
#second
#global
#positioning
#system
#navigation
#homelab
#datacenter
#robotics
#iot
#server
#software
#automation
#oscillator
#oxco
#rubidium
#atomic
#clock
#clocking
#nist
#us
#naval
#observatory
#demetrios
#matsakis
#john clark
#saint louis
#stl
#st charles
#missouri
#mo
#timehat
#ublox
#pi
#module
#hat