Nanosecond clock sync with a Raspberry Pi

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What is a second? And what does that have to do with the Raspberry Pi CM4 and IEEE1588-2008? And why should you care?

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Mentioned in this video:

- My original Time Card video:
- Why is this PCIe Card RADIOACTIVE? (LTT):
- Time Card (a bit pricey, but if you want it preassembled...):
- Time4Pi module (not yet for sale):
- New US Time Standard - NIST-F2 (NIST):
- How the Tweezer Clock Works (NIST):
- GPS III - Focused on the Future (Lockheed Martin):
- How does Britain know what time it is? (Tom Scott):
- WWV Video Tour (ShutterMafia):
- Meinberg IMS Series clocks:

#RaspberryPi #PTP #TimeCard

Contents:

00:00 - What is a second?
00:32 - Time is too expensive
01:29 - PPS and WWV
02:56 - PPS on the Pi CM4
04:19 - Precision Time Protocol
06:09 - PTP Demo
08:16 - A radioactive PCIe card
10:35 - CM4's time has come
12:21 - How important is time?
13:27 - A Time Server for your Homelab?