RANCANG BANGUN SISTEM PENDETEKSI KEASAMAN DAN BAKTERI AIR PADA DEPOT AIR MINUM MENGGUNAKAN SENSOR pH DAN SENSOR SERAT OPTIK BERBASIS ARDUINO

Abstract

Physical quantities can affect both directly and indirectly the survival of living things both on land and in water, including in catfish farming. If the water quality is always changing or unstable, it can adversely affect the condition of the fish such as stress, illness or death if it cannot adapt to the changes that occur. Water temperature and pH are basic in addition to several other parameters used to maintain healthy pond water quality. Thermometers and pH meters in their use must take direct measurements to the location to determine the pH and temperature values of pond water. So that a pH and temperature monitoring tool is needed with the use of IoT which can provide time efficiency in monitoring the quality of pool water in real time without having to come directly to the location to save time. The sensors used are pH sensors and DS18B20 sensors. And using NodeMCU ESP8266 which is a microcontroller that has been equipped with an ESP8266 WiFi module in it. The test results of the pH sensor with a large R square value = 0.909, while the temperature sensor produces an R square value = 0.911. This shows that both sensors have a level of validity of the tool is very valid.