Design and Implementation of IOT-Based Monitoring System on Nanobubble-Based Hydroponics Farming

Maintaining Dissolved Oxygen (DO) levels in the hydroponic plant nutrient solutions can be done using nanobubble technology. Manual monitoring time-consuming and measurement results are less accurate. Therefore, a system is needed to monitor air temperature, humidity, water pH, concentrations, DO levels. Several stages this research preparation, design, sensor calibration, implementation. Air temperature humidity conditions measured with DHT22 sensor, DS18B20 pH Analog Meter Pro, density TDS Sensor. Based on monitored by system, parameters that affect ignition of generator values temperature. The also visualize data monitors online, store locally IoT so has potential hydroponics, especially nanobubble-based hydroponics. Keywords: Sensor, Oxygen, Arduino Uno, ESP32-E, NodeMCU ESP8266