January 2008 Archives

NTP reference clocks

I've finally finished putting together the parts to connect multiple NTP reference clocks to the same serial port...

[Inside of box]

It uses three reference clocks - one GPS receiver and two radio clocks (DCF77 and MSF).

[MSF receiver]

[DCF77 receiver]

[GPS receiver]

USB powered doorbell

I have a second doorbell because the one in the living room is too far away to hear from the computer - especially with music playing - but it uses up AA batteries far too quickly and I don't easily notice that it's no longer ringing with the main one. So I connected it up to a USB port instead...

[USB powered doorbell]

About this Archive

This page is an archive of entries from January 2008 listed from newest to oldest.

February 2007 is the previous archive.

March 2008 is the next archive.

Find recent content on the main index or look in the archives to find all content.

Content authored by myself is just my honest opinion.


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