I have started to experiment with automation systems. I have decided on openHAB as it is readily available for open source use. openhab runs on an Raspberry Pi 3 format with wifi, bluetooth, and ethernet access. I have an example sitemap with items and rules I have developed into a basic system. I have a second system I need to merge with the lighting cvontrols to handle the water pumps and fans with relays, as well. this system is using a Raspebbery Pi 3 B+, a 1TB hard drive, running headless, meaning no monitor just web access. The final system will have security controls and remote access with a smartphone to get updates on lighting, water, air, temperature, humidity. I will be looking at possible CO2 operation, as well. So here is a short video of the basic system I have going right now with some screen shots.