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.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.