Design and Development of a DC Motor Speed Control System Prototype for a Solar-Powered Speedboat
DOI:
https://doi.org/10.58466/jvdfej86Keywords:
DC motor, PWM, Arduino Uno, speed controlAbstract
This study aims to design and test a 12 V DC motor speed control system for a solar-powered speedboat prototype using the Pulse Width Modulation (PWM) method. The system is controlled by an Arduino Uno with a full-bridge motor driver. Speed regulation is performed by varying the PWM duty cycle using two control methods: analog control with a potentiometer and digital control via Bluetooth communication. The system is also equipped with an ACS712 current sensor and a voltage divider circuit for overcurrent and overvoltage protection. Experimental results show that increasing the PWM duty cycle from 10% to 80% raises the motor voltage from 1.2 V to 10.2 V and the speed from 761.6 RPM to 7,664.4 RPM. The protection system is activated when the current exceeds 10 A
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