Nicely done! Three comments/questions:
The main benefit of the ChronoDot is to be able to "set and forget" time, correct? In other words, the benefit of high-precision time is not that applicable to this application, correct? Meaning, the micro's crystal would normally keep track of time well enough, I think..
As you mentioned, it does not really eclipse the moon, but that raises the issue of reproducing the same angles and directions of the occlusion (and how to do it all in a small-ish box). Still, it would be awesome to -simulate- an eclipse. :)
Third, another idea would be to be able to "set your location" in longitude and latitude, and see the eclipse occur from that angle (including/extending second paragraph idea, above). THAT would make an awesome kit!
(While I'm motivated to make exactly this type of project from scratch, I'm really just getting started with the Uno, and solving problems like how to cast different shape shadows inside that box would be a big problem for me at this stage. But now I have an extended idea for an eventual project! :-D )
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