Re: Arduino LED "Roto" Clock and other Arduino Projects
Posted: Thu Jan 30, 2020 3:38 pm
I've been running the clock for 8 days now and the drift, -1 second, is about a -1.45 ppm time base error.
Very good if it was at room temperature but this one has been running in an unheated garage mounted on an uninsulated outside wall. That's excellent.
I have one WWVB synchronized clock that runs with a constant one second offset when it's locked. Bad code.
Very good if it was at room temperature but this one has been running in an unheated garage mounted on an uninsulated outside wall. That's excellent.
I have one WWVB synchronized clock that runs with a constant one second offset when it's locked. Bad code.