Scene that will set a light level dependent on Time of Day

[Ap15e]

The script works for me. I'm clueless ... You should check the LuaUPnP logfile for errors.

[big517]

Ok, so It must have been some copy past issues (i was doing it from an ipad  )
So i'm testing right now, it's 6:50am.  Definately "night".  And running this code sets my dimmer to 0.  I was hoping since it's night it would set it to "15%" so I changed the code to dim_level = 15 after your if/else statement.

I'm trying to wrap my head around what numbers are being created for the sunset_timestamp and os.time, i'm assuming something like 1934 for sunset (7:34pm).  is that a correct assumption?

Thanks!

[futzle]

I'm trying to wrap my head around what numbers are being created for the sunset_timestamp and os.time, i'm assuming something like 1934 for sunset (7:34pm).  is that a correct assumption?

The numbers that are in the region of 1.3 billion are Unix epoch time.  That Wikipedia page links to a ton of online converters.

[big517]

Perhaps I just need to test this in the evening, but I was hoping this would also work in the morning so if it's just after sunset the level is set to 30%, and 30 minutes after sunset its set to 40% or something relative like that...  Thats why I was asking about the math involved.
Heading to work, thanks all!

[Ap15e]

Please find attached a visualization of the dimming level for sunrise at 9:00 and sunset at 16:00. It should match your requirements outlined at http://forum.micasaverde.com/index.php?topic=7860.msg50295#msg50295.

[big517]

Please find attached a visualization of the dimming level for sunrise at 9:00 and sunset at 16:00. It should match your requirements outlined at http://forum.micasaverde.com/index.php?topic=7860.msg50295#msg50295.

@Ap15e,
You are an asset to this board, thank you.  Does this use sunset as a dynamic time pulled from DAD so it's always using the true "sunset" time?

Can this be reversed to ramp up during sunrise?

[futzle]

[...] if it's just after sunset the level is set to 30%, and 30 minutes after sunset its set to 40% or something relative like that...

Unix epoch times are essentially a count of seconds, so if you take two of them (now and sunset, say), and difference them, you can divide it by 60 to get a number of minutes.

[Ap15e]

Does this use sunset as a dynamic time pulled from DAD so it's always using the true "sunset" time?

Exactly.

Can this be reversed to ramp up during sunrise?

Anything that can be expressed in Lua code is possible.