This is my first post here. I am building an external fogponic system. The system takes water and nutrients from a nearby reservoir, creates the fog with an ultrasonic fogger (orange bucket) , and expels it into a nearby growing chamber through the hose. The water that is condensed in the growing chamber can be returned to the reservoir.
To connect the system to openag I used the openag brain_box system by Jake Rye. Even though the box can connect to most sensors used in the Food Computer 2.0, I dont think I will connect all of them. Am not sure how reliable sensors can be in an external system, were they are not located in the growing chamber.
The fan is a Bucket Head dry/wet vacuum. The fan was too strong to work with a single head fogger. I tried lowering the speed down with a fan controller but it is still really strong. I am going to try to use a 12 head fogger. If the fan is still too strong, (which it will probably be) I will need to redesign the system.
I am planning on adding a chiller system to keep the water temperature down. There has been some research that the heat from the ultrasonic fogger increases the water temperature This leads to the droplets taking in fewer nutrients and weakening the roots.
Here is a sketch of the end product, let me know what you guys think! I will keep you posted with any new changes.