Need help for controlling a light sensor and a programmable probe for my Aquaponic system

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C#

ASP.NET

Dear all,

I'm not asking for the entire solution, I'm just asking the idea, programmable hardware brands, models etc.

I have searched many websites about the programmable light sensor, many of them came up with information about some cheap gears which has no programmable functionality.

I need to control a light sensor so when strength of illumination reaches a certain level, it will automatically open a sunroof.

But I have no idea about both where to start this project and where to ask the question other than here.

So I am grateful if someone could come up with details of these two hardware (where to buy, types, brands).