Electronic and GUI Developtmen of Roller Brake Tester

Abstract This paper discusses the development of electronic system and Graphical User Interface (GUI) for axle load and brake tester platform own by UPTD PKB DinasPerhubunganKabupaten Banjar Kalimantan Selatan which has not been operated for about 10 years due to failure on its electronic system. The new electronic system is developed consisting of HX711 load cell ampilfiers for A/D converter from axle and brake force load cells, ATMega328 microcontroller, relay driver and contactor. The GUI program is implemented using Delphi 7 for process monitoring, roller brake tester controller, printing the test results and saving the test results into the data base system. Based on the calibration tests, it was found that the results are very good with maximum percentage error of 2.22% for axle load meter, 1.47% for right brake force and 1.1% for left brake force.