I am using a modified brain box as the computer for my system. Here are some pics.
I connected two AC outlets ( each is controlled individually) and 10 12v DC outlets (orange) all controlled by 12 relays and connected to the pi. I am using an Arduino to connect the sensors to the pi too. The sensors come out through the white brush plate in the last pic. The atlas sensor connectors are on the right of the plate. The smaller gray box in the pics it’s a modified ATX 12v power supply.
The idea is to write a program where you can choose how to control any of the AC and DC outlets, either by time or through sensor readings. The computer could potentially automate any hydroponic system but is intended to work with the FC. It has 10 DC outlets, 5 for the peristaltic pump, 1 water pump, 1 axial fan, 1 ptc heating element, and 1chiller system (ion pump and fan connected to same power source). The AC power supply can be used for the lighting system. Because it requires more power than what the atx provides.
What do you think about the system? We may start pcb prototyping soon, do you have any recommendations on the computer before we cannot change the design? I am hoping that the 10 DC outlets would be enough.