Rancang Bangun Alat Ukur Konduktivitas dan Deteksi Zat Warna (Metilen Biru) pada Air Berbasis Arduino Nano

Abstract

This research has succeeded in designing a conductivity measuring device and dye detection (Methylene Blue) that uses a TDS (Total Dissolved Solid) sensor and a TCS34725 sensor which functions to measure the conductivity and dyestuff of a solution. The purpose of making this conductivity measuring device and dye detection is to determine the conductivity and detect dye automatically so that it can save time in measurement. The sensors used in the manufacture of this conductivity measuring device and dye detection are the TDS (Total Dissolved Solid) Sensor and the TCS34725 Sensor which are controlled by the Arduino Nano Microcontroller and are equipped with a 16x2 LCD in the appearance of the measurement data. The method used in testing the conductivity measuring instrument and the detection of dyes is a method of collecting data on three samples. The results of testing and application of this tool obtained an average error of 0.60% when compared to standard measuring instruments with a difference of 0.45%.