A Multidirectional Textile Interface for Remote Control Using Dynamic Area‐Based Capacitance Modulation

Abstract

Wearable electronics are transforming human–computer interaction by offering greater flexibility and intuitive control. This study introduces a dynamic area‐based capacitive textile sensor that functions as a wearable interface for remote device control. Instead of relying on discrete button presses, the system uses dynamic capacitance modulation, enabling users to adjust both the overlapping area and the distance between electrodes. This allows for continuous input without requiring direct finger contact with conductive surfaces. Conductive components are protected with a layered structure to reduce friction wear. It supports inputs from fingers, wrists, or elbows, making it useful for limited hand mobility or when hands are busy, while a non‐contact resting state helps prevent accidental inputs. The device incorporates an electrode array and wireless communication system, maintaining stable performance with less than 0.79% variation over 500 cycles. It demonstrates high responsivity with a response time of 12–15 ms, a position sensitivity of 0.26 mm −1 (≈26% capacitance increase per mm), and a pressure sensitivity of 0.77 kPa −1 . It remains functional in high humidity (90%) and after washing, offering a reliable and flexible solution. The system is well‐suited for teleoperation and IoT applications where responsive, wearable control interfaces are essential.