In this application we have created control algorithms that enable a GP2 Logger and Controller to simultaneously deliver precise irrigation control for a flood tray and control the soil temperatures for two propagators. The GP2 controlled flood tray irrigation events use feedback from an SM300 Soil Moisture Sensor to activate a pump to transfer water from a reservoir to a flood tray. Feedback from ST4 sensors enabled the GP2 to maintain soil temperature control in 2 propagators during the seed germination phase for a variety of vegetables.
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