SISTEM OTOMASI PADA TANAMAN HIDROPONIK NFT UNTUK OPTIMALISASI NUTRISI
Automation system is designed to provide the nutrients in hydroponic plant model NFT (Nutrient Film Technique). Administering nutrients hydroponic plants adapted to the type and age of the plant. Setting the nutritional needs of plants is very important in order to improve the quality and yields. This system consists of a Gravity sensor TDS Meter, controller, keypad, mini pump, and the indicator lamp. The system works when the sensor detects the change in the value of TDS on dilute nutrient container. TDS value set via the keypad controller then processing information from the sensor to determine the time allotment at once the magnitude of the nutrients will be streamed by mini pump from container to container concentrated nutrients nutrients are diluted. The system is calibrated using a TDS Meter standard, and the system is able to work on a range of 0 to 2000 ppm with 99% accuracy.