Thanks for posting about my project! I've actually been working on moving everything to surface mount (board is now called Arduarium Ultimate and available in the store) and am actually going to be releasing a version for the Raspberry Pi because it's got more horsepower to do some of the things I've been wanting to do.
right now I don't have anything automated but the lights with simple timers. I have a tendency to do simpler, less tempermental aquariums so I don't need to constantly monitor things like ph, salinity, etc.
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