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.
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