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Subscribed. Dataq has cheap serial and usb-based ADC boxes, perfect for running small numbers of sensors. They have ActiveX interfaces for them, and for the serial port models, they also have C++ code on their website, which would allow you to use them under linux. I love this thread, and am...

There are a couple of great threads on growroom automation on this forum, but most of them seem to me to be high cost and/or require vast technical skill to pull off. This thread is to present ideas on how to do monitoring/control as cheaply as possible. One good way to achieve this is to use...

This is a great thread, but it seems costly, and I'd have to learn multiple new skills to apply it. I'm considering starting a thread of my own, on how to do monitoring/control as cheaply as possible. I don't know anything about PLCs, but i'm fairly comfortable with PCs. Using a PC to gather...

The board works ok, but go for the thicker stuff if you can, HD also carries 1 inch and 2 inch, at least where i live. As for your scheme to get cold from the ground, half inch pipe doesn't sound like a good solution to me. Texas A&M University, Kingsville, did experiments where they used 2...

There is not a DAMN THING wrong with smoking leaves. Though, if you've over-fertilized, the smoke may be harsh.

Tower of Flower I want to develop a modular lighting system using CFLs. I.E., expandable, so lights can be added or removed as needed. My Criteria are: 1) should be made as much as possible from commonly available materials 2) should require minimal skill to construct and maintain 3) should be...

One warning about the clamp lamps, the clamps SEEM very strong, but they're not necessarily strong enough to hold up a 42w CFL, or even a 23w. i built a rack for mine with two crossbars, the clamps are set on the lower bar, and i've got a wire running from the neck of the clamp to the upper bar...

Clamp lamps at wally world here run $6-$7 for the least expensive ones, up to 20. they're in the hardware section, not the lighting section.