Ewilhelm writes – “This add-on to a Soleil Sun alarm lets the clock control the brightness of a bank of LEDs. A microcontroller adjusts the power of the LEDs so they appear to dim at the same rate as any incandescent lights you may have attached to the alarm.” – Link.
4 thoughts on “Make a blue LED dawn simulator for Soleil Sun alarm”
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A “blue LED dawn simulator” is useless. The purpose of a dawn simulator is just that…to simulate sunrise. You do this using full-spectrum bulbs that provide the closest possible approximation of sunlight. Ideally, you use track lights or similar fixtures that get the light to you without filtering it through a shade.
Blue LEDs are used for compact, intensive-therapy boxes. They’re designed to be used when you’re sitting in front of them wit your eyes wide open (like when you’re reading the newspaper. Ergo, having them warm up when your eyes are closed ison’t going to help much.
None of which stops this from being a nice hack, but it’s probably not going to be of any therapeutic value.
Gah! Sorry about the assorted spelling errors. No coffee yet.