SISTEM ALAT MONITORING UNTUK PENGENDALI SUHU DAN KELEMBABAN GREENHOUSE BERBASIS INTERNET OF THINGS

Abstract

Greenhouse is an agricultural technology to protect plants from uncertain weather, with the
Greenhouse will be able to maintain and distribute temperature, soil moisture, sunlight, and
air humidity evenly with an optimal level. Even so the environmental conditions inside the
Greenhouse will always change due to the influence of the weather environment outside the
Greenhouse which is uncertain, so there is a need for monitoring so that plants inside the
Greenhouse can grow optimally. With IoT (Internet of Things) technology, Greenhouse
farmers do not need to visit the Greenhouse to monitor and control the environment inside
the Greenhouse. This is because with the IoT technology Greenhouse farmers can monitor
and control v1ia an Android smart phone. The things that can be monitored are
temperature, humidity of the room, soil moisture, sunlight, water discharge, and soil
moisture, besides that farmers can also control the temperature and humidity of the
Greenhouse environment, as well as the provision of water to plants in the Greenhouse.
The system used in this study uses ESP32 as a control center and uses DHT11, Soil
Moisture, as a sensor to measure IoT temperaturei, humidityi and soil moisture in the
greenhousei. As a control in the greenhouse there are two control outputs, namely water
pump 1 and water pump 2. ESP32 will read the temperature, humidity and soil moisture
sent from the DHT11 sensor which will determine whether the water pump will turn on or
not. To read the soil moisturei sensor used is capacitivei soil moisturei, if the soil moisture
reaches a predetermined threshold, the water pump 2 will turn on and drain the water into a
poly bag through drip drops.