Monitoring System and Control of Air Quality and Light Intensity at ITTelkom Surabaya Greenhouse with Fuzzy Logic

The intensity of light, temperature, and humidity are some of the factors that can affect the growth of plants. The air quality and light intensity inside the greenhouse building will be very different from outside the greenhouse building because it has a roof and walls that block air and light from entering and hitting the plants inside. Excessive light intensity will increase the room temperature and cause the plants in it to wither. Air quality and light intensity are difficult if controlled directly by humans if it is done regularly and continuously. Greenhouse buildings must require special and consistent maintenance or care to maintain conditions according to desired so that the plants inside are maintained in good condition and grow well. For this reason, a monitoring system and control system for air quality and light intensity were built using the Node MCU ESP8266 microcontroller board by integrating the DHT-11 sensor to detect temperature and humidity and BH-1750 to detect light intensity. In this study, the design of the system and tools can run well. Temperature and humidity parameters can be monitored properly, and implementing the fuzzy logic method on temperature and humidity parameters can also drive a fan/blower with a predetermined fuzzy set. The error difference in simulation and testing on Arduino is 0.18%, indicating the system's accuracy and the tool is running well.