Author Options:

Sunrise lamp adaptor alarm Answered

Hi guys and compliments for the comprehensive forum!
I would love to have one of those sunrise simulator alarm clock out in the market but since I have no bedside table, and the wall cover with wood on one side, I am looking for a way to make an adaptor to start dimming my existing lamp at a precise time, like 7 am.
I found out this product:
but the producer told me it does not work outside US (I'm from Italy) since we have 220V main and the gig would fry out. Also he told me it cannot be modified and power adapters don't work.
Any idea on how to build one?

Thanks a lot!




5 years ago

Or you could go to a local lamp shop (possibly even warehouses/supermarkets) and buy one made for your local market - light timers have been available cheaply for many years

Unless ofcourse you like the idea of modifying it, in that case ignore me :-)

Just noticed the dimming... that may limit your options. sorry for jumping the gun. but its not unlikely some models come with dimming too - I would still suggest to check local stores though

There are tons of such devices, very cheap too. The point is that I need a clock with alarm capabilities (to set the starting of the light) and a dimmer (to start the light dimming, hopefully in a 30-min time).
The basic light timer wouldn't do the sunrise sim, just on/off.

Also I have an old android mobile lying around, is there a way to use its hardware as a controller for my goal?

That model does have a PU chip along with a circuit to sense dark/light and a dimmer circuit (use with incandescents only, CCFL bulbs (most of them) do not care for large voltage fluctuations).

I forgot to mention that the Arduino could substitute for the processor unit chip.

Thank you for your quick replies!
Actually I'm kinda noob about programming and don't have a clue on Arduino and the like.
The only option is to buy one like the Philips or similar but I thought that using a lamp the sunrise simulation and its effects would be more powerful and realistic!

Well, IF you wanted it to react to the light only, at the moment the ambient light changed, you could do so with a simple circuit that used a photosensor, relay, and capacitor arrangement, but you'd have no way to set "when" it goes off, it would be at whatever point the photoresister or photodiode was set to. Precise times would be nearly impossible. .