[time-nuts] time sync from cellphone TO microcomputer

Hal Murray hmurray at megapathdsl.net
Fri Nov 20 21:32:36 EST 2015


jimlux at earthlink.net said:
> Say you wanted to "set the clock" on an Arduino or embedded processor.
> Could you do it via a wireless (or, I guess, a wired connection). 

I don't have a cell phone to experiment with, but I do have a Raspberry Pi 
connected via WiFi.  Ping times are a bit over 3 ms.  That's after filtering 
out all the way-too-long ones that I assume are due to driver bugs/quirks.

Ping times to my laptop are mostly under 1 ms.

I guess it's time for me to get an Arduino so I can do this sort of 
experiment.  Anybody have a favorite package?  I need Ethernet and/or WiFi.


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