I thought I was the only one working on something like this! Very cool. I'm designing a coco coir grow using General Organics line of nutrients. Due to time constraints from the many jobs I have, I needed something that would automate a great deal of growing. I'm still in the code development, but its coming along at a very fast pace. Once you get an RTC added, its very easy to use to trigger readings, count days, and to know exactly what area of the cycle you are at. I checked out your yieldbuddy site and I am envious of the web integration. I have a Raspberry Pi was well, but I think its going to take me a while to work on that. For the time being I'm just going to keep the Garduino plugged into a windows machine via USB and remote desktop into it. With the way this is going, unless there is an issue, which I should be able to see via the data from the serial port, or via a webcam, I should only have to go up once every two weeks to fill up the water in the barrels. Wish me luck!