SISTEM MONITORING TANAMAN PAKCOY HIDROPONIK NUTRIENT FILM TECHNIQUE (NFT) BERBASIS INTERNET oF THINGS

Vegetables are food ingredients that come from plants such as stems, flowers, and leaves for nutrient intake in the body. So that the fulfillment of vegetables needs to be increased by applying new methods of growing vegetables. One method that is successful in meeting the needs of vegetables is to apply a hydroponic system. The hydroponic system is a vegetable growing medium using water as a nutrient intake. Here apply the Nutrient Film Technique (NFT) hydroponic system, which is a hydroponic cultivation system with roots growing on a layer of nutrients continuously. The important thing in hydroponics is the fulfillment of nutrients in plants correctly. In this study, controlling pakcoy vegetables using fuzzy logic which can be monitored online using the Internet of things on a smartphone. The sensors used are TDS and ultrasonic sensors which are used as inputs, while the output given by the control of this system is the length of the pump opening. The pump is divided into three, the first is a pump for water, the second is a pump for nutrition A, and the last is a pump for nutrition B. In this system, nutrition control has been carried out on vegetable pakcoy using fuzzy logic control and can be monitored remotely using Blynk app on smartphones. This system can work well, which is able to maintain hydroponic vegetable nutrition in yanama pakcoy in the range of 900-1400 ppm.