Abstract:
Efficient water management is the only way to avoid frazzle of freshwater. Agriculture utilizes most of the fresh water; since the atmospheric parameters vary from place to place in large farm field, it makes very difficult to maintain the uniformity in all the places of farm field manually. So a combined function of wireless sensor network (WSN) and embedded system is used to control the irrigation.The soil moisture and temperature sensors are incorporated in root zones of the plants. ZIGBEE radio modem transmits the information to master microcontroller for processing. The microcontroller is programmed with threshold values of soil moisture and temperature sensors. Automatic irrigation starts when the processed data of the microcontroller drops below the threshold value. The strain sensor is used to indicate the motor theft. A GSM module is embedded to provide the remote control of data inspection and irrigation scheduling.

Keywords: wireless sensor networks (WSNs), Zigbee, GSM, Load Cell, PIR sensor, water resources