I have several temp probes and ultra-sonic PCBs, just ordered a I2C expansion card and a servo motor driver (louvers). Also have several 8x relay boards, but ordered some 2x boards for pump control. Sump pump w/float works well in the sump but doesn’t do anything for make-up water.
My ‘real job’ is keeping me busy traveling lately, hope it slacks off when the parts come in.
The water-proof temp. sensors can be used anywhere in the greenhouse, the current one is oxidizing (so much for stainless steel sleeves. Need to get higher grade ones, 316, for a permanent installation) and the ultra-sonics are OK but don’t have a high resolution (don’t think I need them for this).
The tilapia and Koi are enjoying the 275 gal. tanks but stress when the sump pump sends water splashing into the tank, need to modify it to inject air/water into the water. Maybe I can get an Oxygen sensor monitor and eventually keep Trout/Salmon (at a lower temp. of course). Just use a water/water heat pump to move the heat from the trout to the tilapia tank.
I’ll have to take some pictures when the plants start taking off this year!