Abstract
This study aims to produce a digital simple pendulum prototype. ADDIE model has been used in this study. This research was carried out up to the develop stage. The developed digital simple pendulum consists of mechanical and electronic devices. The processor used is the Arduino Uno microcontroller. The resulting prototype is declared to be functional if it meets the period and frequency equations on the pendulum. The results obtained show that: (1) the frequency and period are affected by the length of the string, (2) the period and frequency are not affected by the mass of the object. The prototype that has been produced can be an alternative learning media that leads to STEM.
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