See if we all get together think about what kind of controller we could build for all our tanks lol!
You mean.. you haven't attempted this already?
My first was based on an Arduino. I built a DIY Chiller using a peltier element, some titanium sheeting, derlin plastic and the plastic-side of a CPU water-block.. I started getting a little nuts with it, opto-isolators to trigger A/C Relays for wave makers, 4x16 LCD displays, "OneWire" temp probes.. the whole nine yards. Powered it all from a 300W PC power supply I ripped from one of the (many) dead PCs I had in the basement.
The wife HATED it. Wires everywhere. Looked like a data center had grafted itself onto the side of my tank, and I never actually got things out of the "breadboard" stage, had about 4 of the darn things, with single wires keeping them all tied together and into the arduino. Heehee, if you walked by the tank and brushed it, it'd fall apart and I'd spend a good 2-3 hours trying to remember what wires went into what pins on the Arduino!
I was just about to build ZigBee modules for wireless data logging, when the fans I'd installed in my BC29 hood crapped out one day, and the 150W MH I'd stuffed up in there melted the splash guard, brought the water temps up to about 110 and essentially "cooked" the entire tank. I came home after work to what looked like stalactites of acrylic hanging into the water from the hood. House smelled HORRIBLE for a good day or two after too.
Guess I should have added a temp "cut off" circuit...
I've still got the bits and pieces for that old thing in my "parts box", though I've since lost the original sketch. I think I had a build thread on the controller somewhere, and my BC29 build thread on Uberfrags covered the chiller design.
Been sort of drooling over the Raspberry Pi though and looking for an excuse... And now that I'm finally getting around (3 years later) to putting together another tank.. might be time to dig all those bits back out. I need an excuse to buy a soldering station with reflow capabilities anyway (not because I need it, but I just sorta want one!)
