[peatmoss]

I'll be trying my hand at some LED strip / arduino programming to build a dawn alarm that goes from dim red to bright white progressively. I have a Philips halogen dawn alarm which naturally goes from orange -> red as it ramps up, but unfortunately doesn't get quite as bright as I would like for that "wake up at the cabin" experience.

I'd love to see more applications of LEDs providing the right color temperature and intensity for the time of day, as well as more applications that avoid the bulb form factor. I'd love for my ceiling to emit light like the sky...

[RoboTeddy]

The best thing I've found so far are these lights meant for growing coral:

http://www.maxspect.com/index.php?option=com_content&view=ar...

One of the models puts out UV, so be careful.

Message me (email in profile) if you want to chat!

[peatmoss]

Those look like a very polished product! In my case, I'm looking to take advantage of the availability of $15 for a 300 RGB LED strip, as well as for the challenge writing my own control logic with an arduino. The SAD wake-up alarm is more of a side-benefit.

[RoboTeddy]

I don't have any SAD issues, but I find that getting proper light in the morning helps stop me from going to bed too late.

I like your project! How many watts is the LED strip?

[peatmoss]

At full intensity, it draws 6a @ 12v, so 72 watts if my mental arithmetic is correct. With luck that will throw enough light to be useful.

[pc2g4d]

I'd been considering a project like this recently. I'd like some way of bringing the amount/timing/frequency of light I experience indoors closer to what I would experience were I in the outdoors, under the assumption that it would be better for my sleep/wake cycle and possibly other things.