For a change of pace from the discussions of software and kit building, you might like these links about what’s been happening recently at the Controlled-Environment Lighting Laboratory (CELL) at Michigan State University.
According to the HortiDaily article, Dr. Erik Runkle got the inspiration for starting CELL from talking with Caleb about possible indoor farming projects in Detroit.
I think this research is significant because it demonstrates an application of climate recipes with an emphasis on controlling the spectrum and intensity of LED lighting in many individually adjustable zones. From what I see of the alpha hardware designs that Jake and Dan are working on in the openag_eagle repo on github, the upcoming pfc-edu hardware will have lots of potential for similarly adjustable lighting with multiple channels of PWM dimmable LEDs. That’s exciting.
https://www.canr.msu.edu/profiles/dr_erik_runkle/cell (overview with good videos)
There is no ‘one size fits all’ to growing plants indoors, HortiDaily, Jan. 2018
Growing food in the future, Futures (AgBioResearch, MSU), Jan. 2018