As you can see here, it takes the combined efforts of 3 small, low-cost Linux running computers for me to tell time 🙂 The Pi in the blue Pi shell has an ultimate GPS soldered onto a custom stripboard PCB that exports its time via NTP. The only things here I didn’t purchase from Adafruit are the Ethernet cables and the Linksys router, turned wireless bridge that connects it all to my network.
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Each Friday is PiDay here at Adafruit, be sure to check out our posts, tutorials and new Raspberry Pi related products. Have you tried the new “Adafruit Raspberry Pi Educational Linux Distro”? It’s our tweaked distribution for teaching electronics using the Raspberry Pi. But wait, there’s more! Try our new Raspberry Pi WebIDE! The easiest way to learn programming on a Raspberry Pi.
Here are the instructions/code I used for the two different projects I’ve combined here:
http://www.adafruit.com/blog/2012/11/16/raspberry-flavored-time-a-ntp-server-on-your-pi-tethered-to-a-gps-unit-piday-raspberrypi-raspberry_pi/
http://www.adafruit.com/blog/2013/02/22/raspberry-pi-lcd-menu-piday-raspberrypi-raspberry_pi/