This week, I worked almost entirely on the hydroponics project. Two out of the three sensors (EC and temperature) are connected to the Arduino, and the third (pH) has been ordered and will arrive next week. The system must still be connected to the EMCc system, when that becomes a possibility, so that it can log data in a central place. If that is impossible, however, it would not be difficult to set the Pi up with its own database to log temperature, EC, and pH of the tank over time. Next week (or whenever the last sensor arrives), I would like to set the system up outside to monitor one of the tanks - probably the running-water vertical system, so that the electronics can remain in relative safety inside the cabinets. Additionally, I will need to run tests on how frequently I can poll the sensors without polarizing the water to such an extent that it throws off the reading. I was unable to find data on this online, so I will need to conduct my own research.
grayson_o
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