Design and Implementation of a Smart Wearable Metal Detection and GPS Tracking System Using Arduino UNO

This paper presents the design and development of an innovative wearable metal detection system integrated into a shoe platform with real-time GPS tracking using the Arduino UNO microcontroller. The proposed system is designed for hands-free operation, enabling users to detect buried or concealed metallic objects while automatically logging their geographical coordinates. The core components include a metal detection sensor coil, a NEO-6M GPS module, a buzzerbased alert mechanism, and a 16×2 LCD display, all interfaced through the Arduino UNO and embedded within the sole of a standard shoe. When a metallic object is detected, the Arduino processes the sensor’s output and triggers both an audible alert and a GPS-based location capture, which can later be used for mapping and analysis of detection points. The system further integrates piezoelectric energy harvesting within the shoe sole, providing a supplementary power source that enhances portability and sustainability. This smart, compact, and low-cost solution offers significant advantages in applications such as security patrolling, minefield and explosive detection, archaeological exploration, and field reconnaissance. By combining wearable technology, embedded electronics, and geospatial data acquisition, the proposed design represents a novel step forward in intelligent sensing systems for real-world safety and exploration operations.