[wpietri]

Excellent. I've been trying a related experiment for the last couple of years. I put a bunch of Philips HUE bulbs in and wrote some software to control them:

https://github.com/wpietri/sunrise

For anybody who uses use Flux, this is basically like that but for my home. Since I'm prone to SAD-like symptoms, I keep it set on summer time: the lights come on dim and red at 6 in the morning, gradually brighten to a high color temperature white during the day, and fade during the evening, going completely out at 10.

I thought the main benefit would be waking gently in the morning, and that's fine. But really, the best part is the dimming light in the evening. I gradually get tired and go to bed easily; I sleep a solid 7-8 hours every night. Like you, I'm generally well-rested and productive. My mood is also more even, and I've had little or no seasonal melancholy. I've also kicked caffeine and don't miss it.

I recommend it highly.

[edejong]

Using openhab 2, some scripts and a couple of zwave lightbulbs with adjustable color temperature, I've created something very similar. The lights turn on automatic using presence detection and change temperature using a simulated sunset. I'm working on a ray-tracer, simulating a true sunset, which would allow different lights to produce various parts of the spectrum. The problem lies with the bulbs, which do not allow enough fidelity over RGBW (either color or warm light, not both).

[wpietri]

Ooh, that sounds cool. Could you tell me about how you did presence detection?

[edejong]

Wifi and owntracks in combination with calendar events.

[rorykoehler]

Great to see this.. I contemplated doing a similar project last year but never got around to it. Looking forward to trying Sunrise out.

[najra]

Awesome, been looking for something like this for a while! Guess I'm going to need some hue lights :)