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Built a custom PLC-based control box for my home system. User interface provided by open-source EPICS control system software.

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Comment by Lloyd Booth on March 26, 2013 at 8:08am

>.. Very Impressive, Claude! Does your pump stop after the siphon sequences? 

>.. Dick Meyers and I have been thinking about doing sequentially automated fills for our various growbeds. One problem has stumped us, how to trigger the next growbed after the current one cycles. I have not found a reliable method to know when the siphon has triggered. My concern is the variability of the pump. If I use a timed sequencer, the likelihood of a filled, but not emptied growbed seems very real. If I use a volumetric sequencer, I am concerned that they are only grossly calibrated.

>.. It may be that I am too tight in my personal tolerances [internal organic system].

Comment by Vlad Jovanovic on March 18, 2012 at 4:55pm

Very cool Claude. 

Comment by Brant Moore on March 18, 2012 at 3:22pm

Cool video. Thanks for posting. I've just started looking around to see what control systems are being used. Do you plan to automate pH management in this system?

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