Telemetri Pengukuran Derajat Keasaman Secara Real Time Menggunakan Raspberry Pi

• Published in: Jurnal Jartel: Jurnal Jaringan Telekomunikasi
• Main Author: Harvyandha, Avryan
• Format: Article in Journal/Newspaper
• Language: English
• Published: Politeknik Negeri Malang 2019
• Subjects: Sensor pH; Sensor CO2; Arduino UNO; Raspberry Pi; Real time; pH Sensor; CO2 Sensor; Carbonic acid
• Online Access: https://jartel.polinema.ac.id/index.php/jartel/article/view/158; https://doi.org/10.33795/jartel.v9i4.158

PH is the standard value of degree of acidity expressed on a scale 0-14. PH can be influenced by several factors such as temperature and CO2. Acidification occurs because CO2 enters the liquid in the form of dissolved gas then reacts with water to form a salt in the form of carbonic acid. The acidity can be determined by measuring the pH. PH measurement is an activity to determine the value of degree of acidity. PH measurement is needed to reduce the impact on the environment because pH is closely related to pollution. However, the existing measurement tools are still manual, while real time measurement is needed so the impacts on the environment can be prevented. In this study, a system that can measure pH which is influenced by CO2 concentrations in real time was created. This system consists of CO2 sensor, pH sensor, Arduino UNO R3 and Raspberry Pi. Apart from real time, the advantage is its ability to perform data acquisition using programs written in the Python 3.x programming language, so that data can be presented in tables and heatmaps. The results of sensor readings from the microcontroller to the raspberry pi can operate properly with delivery times via USB. Overall testing the system at reading the pH value is as expected, able to read the change in pH value significantly in pH of a neutral solution (7.3) and read the change of pH value that is relatively the same after the solution is injected with CO2. PH merupakan standar nilai derajat keasaman yang dinyatakan dalam skala 0-14. PH dapat dipengaruhi oleh beberapa faktor seperti suhu maupun gas CO2. Asidifikasi terjadi karena CO2 masuk ke dalam zat cair dalam bentuk gas terlarut yang kemudian akan bereaksi dengan air sehingga membentuk garam berupa asam karbonat. Keasaman dari adanya asidifikasi dapat diketahui dengan melakukan pengukuran pH. Pengukuran pH merupakan kegiatan untuk mengetahui nilai derajat keasaman pada suatu zat maupun larutan. Pengukuran pH seringkali digunakan pada bidang industri maupun lingkungan. Pengukuran pH diperlukan untuk ...