Pengembangan Timbangan Digital 10 kg Setara Timbangan Digital Komersil 10 kg

Abstract

This research aims to develop a 10 kg digital scale equivalent to a commercial digital scale, to facilitate sales activities, particularly in displaying weight and price directly on the LCD screen. The device is designed using a load cell sensor, HX711 module, Arduino Nano, and a 16x2 LCD as the output display. The method used is a quantitative approach through experimentation, measurement, and numerical data analysis. The research focuses on system design, calibration, and performance testing. The main objectives are: (1) to test the performance and accuracy of the digital scale using a load cell sensor and display the measurements digitally on an LCD; (2) to calibrate and test the digital scale to ensure that the measurement results are in accordance with the applied load capacity; and (3) to compare the test results with standard measurement outcomes. The test results showed that using sugar alone produced a total error of 1.75 kg with a correction of -1.75 kg. Meanwhile, the combination of sugar and a 200- gram standard weight produced stable readings and accurately reflected the actual weight of the sugar, with a total error of 0.42 kg and a correction of -0.42 kg. In conclusion, this digital scale is feasible to be used as a simple alternative measuring device with fairly good accuracy, and it can support both trade and educational needs.