First of all I would like to say thank you for anyone here that may be able to shed some light on my project. I am very thankful for finding this forum. I have worked on several projects involving controlling and dimming led arrays.
My newest project requires an array of LEDs to be dimmed over a period of 29-30 days. What I have put together so far was a photocell light dependent switch that would either turn on or off my LED circuit depending on a presettable light intensity. In addition to this circuit it has a built in constant dimming function. Essentially if the ambient light source was low enough my dimmable LED circuit would be activated and remains on until the ambient was above a certain threshold. It is basically a light/dark switch.
What I would like to do now is to have a circuit that would integrate the same photocell light switch with a dimmer or controller that would increase the brightness of my LED circuit over a cycle of 29-30 days, with max intensity occurring half way through the cycle.
I have read over some potential designs online and most point to a "Schmitt Trigger'? I am not familiar at all with this circuit design and am hoping someone here has some idea on how to proceed with my design. The basis of the circuit would be to copy the lunar cycle, going through the phases of the moon. The integration of the photocell circuit is not essential but I would like to have zero LED intensity while there is ambient light present. Does anyone know of a controller circuit that would allow me to run through this cycle?
The product I am trying to replicate is located at the following link.
**broken link removed**
My newest project requires an array of LEDs to be dimmed over a period of 29-30 days. What I have put together so far was a photocell light dependent switch that would either turn on or off my LED circuit depending on a presettable light intensity. In addition to this circuit it has a built in constant dimming function. Essentially if the ambient light source was low enough my dimmable LED circuit would be activated and remains on until the ambient was above a certain threshold. It is basically a light/dark switch.
What I would like to do now is to have a circuit that would integrate the same photocell light switch with a dimmer or controller that would increase the brightness of my LED circuit over a cycle of 29-30 days, with max intensity occurring half way through the cycle.
I have read over some potential designs online and most point to a "Schmitt Trigger'? I am not familiar at all with this circuit design and am hoping someone here has some idea on how to proceed with my design. The basis of the circuit would be to copy the lunar cycle, going through the phases of the moon. The integration of the photocell circuit is not essential but I would like to have zero LED intensity while there is ambient light present. Does anyone know of a controller circuit that would allow me to run through this cycle?
The product I am trying to replicate is located at the following link.
**broken link removed**