The Raspberry Pi as a Stratum-1 NTP Server

• beaglebone-gps-clock

  3 27 0.0 Go

I made one as well (with a Beaglebone) and also have notes:

https://github.com/jrockway/beaglebone-gps-clock

My guide is also quite out of date, but I did rebuild it from scratch a couple years ago by following my own instructions and they worked ;)

Some discussion on HN this morning: https://news.ycombinator.com/item?id=28141493

• txtempus

  7 397 0.0 C++

  A DCF77, WWVB, JJY and MSF clock LF-band signal transmitter using the Raspberry Pi

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• moonfire-nvr

  31 1,114 8.6 Rust

  Moonfire NVR, a security camera network video recorder

I don't know who needs this kind of precision, especially on a Pi. But there's often a need to improve on the Pi's sucky out-of-the-box time experience. It doesn't have a battery-backed real-time clock. After a power outage, it will boot with time that's hours behind and then step it after the network becomes available.

So a nice middle ground is to buy a separate RTC and attach it via the I2C GPIO pins. The modules are ~$10 including shipping. I wrote up the software setup recently here: https://github.com/scottlamb/moonfire-nvr/wiki/System-setup#...

Suggest a related project