I built this breakout box last night. I already had one that allows me to connect 6 dry contact switches to my apex (float switchs, water on the floor, magnetic sensors etc) but I've quickly filled it up and wanted more room.
Untitled by
kentlighting, on Flickr
The two buttons on the bottom are pretty cool I think. One I have programed to run the super feeder if I want to add a bit of extra food. the other is used to start the refill sequence of my ATO resivor which stops when the Resivor is filled. Explained better: I bring 5 gallon jug of RO/DI water in put a hose in connected to an aqualifter pump, I press the button, It starts pumping continues untill the High float switch in the ATO resivor is triggered by the water level rising and shuts off the pump. this sequence wont happen again till I press the button.
Right now the Dry Contact Switches connected to the apex are as follows
1) Sump LOW - Float (will shut off heater and return if water level falls drasticly low in the pump section of the sump, prevents equipment operating dry)
2) Sump HIGH - Float (triggers Automatic Top OFF of fresh water to tank)
3) ATO Resivor LOW - Float (Triggers a text message notification to me to refill ATO resivor with fresh water)
4) ATO Resivor HIGH - Float (stops refill squence of Resivor)
5) Cabinet Doors Sensor - Magnetic Sensor (Triggers the work lights in the Cabinet to turn on or off when doors are open or closed)
6) Feed Mode Activate - Momentary Push Button (triggers extra feed cycle outside of normal timed routine)
7) ATO Resivor Refill sequence activate - momentary push button (Starts the refill sequence of the ATO resivor)
Future:
8) Frag Tank HIGH - float (will turn off the return pump if an spill is about to occur from the frag tank/ send text notification and Audible alarm)
9) Display tank HIGH - Float or Pressure (same as above)
10) Water on the floor sensor (same as above will have multiple 1-2 in the stand and 1-2 outside of the stand