Rancang Bangun Sistem Smart Dumbbell Berbasis IOT untuk Menghitung Repetisi Latihan Bicep Curl
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Abstract
The rapid development of Internet of Things (IoT) technology has opened opportunities for innovation in various fields, including fitness. This research designs and develops an IoT-based Smart Dumbbell system that automatically counts bicep curl repetitions and displays the data in real-time through a web-based monitoring platform. The system uses an ESP32 microcontroller as the main data processor, an MPU6050 sensor to detect acceleration and rotation movements, and a buzzer as an audio indicator to provide immediate feedback to users. The calculated data is sent to the Firebase Realtime Database and accessed via a website with a simple and informative interface. Testing results show that this Smart Dumbbell prototype can count exercise repetitions with an average accuracy of 87% and a minimal error compared to manual counting. The Wi-Fi connectivity runs stably, enabling real-time data transmission, and the device has a power endurance of up to ±5 hours using a 5000 mAh power bank. This system has proven effective in supporting independent workouts that are more measurable and data-driven, making it a practical and innovative solution for IoT applications in the fitness field.
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