Web-based Crop System.

Traditional farming is often affected by unpredictable environmental hazards, such as cold or hot weather, typhoons, flood, and drought, and requires considerable labor. To overcome such difficulties, we developed a web-based crop system to monitor and control environmental parameters such as air temperature, air humidity, sunlight intensity, and soil moisture. The system also operates sunlight-blocking curtains, ventilation/cooling fans, water sprayers, and an alarm on the basis of preset values of the parameters or manually online. The monitored parameters are shown on a mobile device through a low-cost open-source IoT platform (NodeMcu). The programs for operations are created in C# and JavaScript. The proposed system helps users grow crops in greenhouses efficiently by controlling the environmental parameters and necessary facilities remotely. [ABSTRACT FROM AUTHOR]