I'm working on an automated, programmable hydroponics system (legal guys, c'mon now
). I've been scouring the web for suppliers of small, cheap, rugged, virtually maintenance-free equipment, but all I've found has been lab-grade products ranging from $200-$1000, and for these purposes that just won't work. Although I'd like these to be digitally activated (i.e. through LabVIEW w/TTL logic), they don't have to have many bells/whistles. I'll go through the range of items I'm looking for, and if anyone has any suggestions I'd be forever indebted.
Peristaltic pumps (digital on/off)
Air pumps (digital on/off)
pH probes (without digital display, just simply an analog or digital output that can be read by a computer)
TDS probes (same ^)
Temperature probes (same ^)
CO2 probes (same ^)
Fluid control valves (digitally opened/closed)
I've already got a control scheme worked out (theoretically, that is), but I'm always open to other programming suggestions as I am definitely not a programmer. Thank you much!