SISTEM MONITORING PH, OTOMASI SUHU DAN PAKAN IKAN BADUT DI AKUARIUM MENGGUNAKAN METODE FUZZY LOGIC BERBASIS INTERNET OF THING

One of the marine ornamental fish that is in great demand is the clown fish, because clown fish have a unique beauty and are economical. One of the media that is often used for the maintenance of clown fish is the aquarium. However, even though clown fish are in great demand, clown fish are difficult to find on the market because the care in raising clown fish must be paid close attention, this applies to all aspects, be it the condition of the fish, fish feed, water pH, and water temperature so not many keep and sell them. clown fish in the market Therefore, to solve this problem is with a new system. pH monitoring systems, temperature automation and fish feed in aquariums can overcome these problems. Based on the Internet of Things, the implementation of this system can be controlled and monitored remotely via the website. For monitoring the pH of the water, a pH-4502C sensor is used which is connected to the NodeMCU and the DS18B20 sensor for controlling water temperature. In water temperature automation using the fuzzy logic method. When the water temperature is below 25 ℃ the heater will turn on to increase the water temperature to normal and after the temperature becomes normal the heater will then turn off, while at temperatures above 28 ℃ the fan cooler will turn on and after the temperature becomes normal the fan cooler will then turn off. Black box testing is used to test the monitoring system that has been designed and the test results show that this system has been running well, and usability testing has been carried out on 18 respondents, 87% agreed with the system that had been made.

Keywords: Monitoring Systems Water pH, Temperature, and Fish Feed, Internet of Things, Fuzzy Logic, Black Box Testing