there are two more interesting projects which came to our attention. As these systems have some attributes in common with the data acquisition system of Hiveeyes, you might also be interested reading about it.
[It is] a data analytics platform for hydroponic setups. It visualizes and allows analysis of data covering the growth aspects of hydroponics. In combination with the HAPI project, it creates a system that covers the data collection and automation to data storage and analysis.
HAPI, the Hydroponic Automation Platform Initiative, is about zero-footprint autonomous food production in general. You might want to have a look at its documentation and at further resources about it: