Wireless Sensor Network Based Greenhouse Monitoring and Control System

To obtain the best results from green house system, continuous monitoring and control system is required. This paper proposes a WSN based design to monitor and control the essential greenhouse parameters, such as, temperature (LM 35), humidity (HSY230) and light intensity. Here a main node is connected to the computer to analyse the input in visual basics and then produce the required output. All the parametric data is been sensed by the respective nodes and send to the main node via RF ZIGBEE (CC2520). The main controller ARM7 (LPC2138) will then send the data to the computer. Here the analysed input will get compared to the required output (pre-determined) in visual basics. the necessary changes will be send to the main node which will then transmit the signal to the respective nodes PIC CONTROLLER (16F877A) via ZIGBEE. The nodes will then initiate suitable commands to the specific devices to overcome the drifts in environmental parameters inside greenhouse. Making the system wireless will help in reducing the hardware cos and also increases the area for crop production.