The Greenhouse controller is a Maximite driven project controlling a hydroponic watering system. A mixture of watering methods are used (flood and drain, autopots) all supplied by a low voltage pressure pump which is controlled by the Maximite computer. Ventilation is assisted by a low voltage fan once the set greenhouse temperature is exceeded. Humidity and cooling is also controlled by the computer via misting jets. Temperature and Humidity data is collected via a wireless link to uMSNS.