Soil humidity (tension) is measured in a pot with plants (Tradescantia fluminensis). The tensiometer is made with parts from Blumat, Austria and an Arduino connected to PC. See the 'More Information' tab to the right.
An Arduino based circuit using a DHT22 temperature and humidity sensor. This is connected to a Windows PC inside my home and loops the information on the serial port which is read by a processing sketch and then passed to the web as a get request. The pro