My understanding is that Arduino is more open ended than raspberry pie. I wonder if the raspberry pie thread here has something I can pilfer... It's supposed to be an open-source reef control software. program a clock, on/off for the light, maybe randomize intensity for the return pump. maybe I'll just run it through a potentiometer.Definitely worth it to learn raspberry pie! I have not worked with that yet, but I worked with a relative, Arduino. I have plans to make my own lights for my main tank, especially color-effect lights for the back of the tank to simulate morning/noon/evening/moonlight as desired. Raspberry pie will likely be my go-to controller after discussions with my brother than is an electrical engineer.
Since I am a design engineer, I'm very familiar with CAD, primarily SolidWorks. Almost all my plans start in CAD, sometimes to the point of complete fabrication drawings, bills-of-materials, and lists for cutting material and planning stock material needed.
Add on an ATO if the setup has longevity.
I'm fumbling through fusion. I want to get better as I have other house projects that could benefit from the bills of materials and cut lists etc. Right now that is easier done in my head and 3 trips to the hardware store.