Over on GitHub, Jake Rye recently added a new repo: OpenAgInitiative/openag_brain_box.
Quotes from the description and main readme:
The brain box is a more portable unit that provides sensing and actuation to any farming style, anywhere.
The Brain Box Prototype's hardware features a raspberry pi with a 7" multipoint touch screen, high resolution camera, relay board for connecting multi-spectral leds, sensors for air temperature, humidity, co2, o2, water temperature, ph, and ec - all packed into a rugged encolsure.
[edit: the links changed on github, so I updated them here]