情報処理学会 インタラクション2024

This study presents the development of a portable wristband-shaped touch sensor utilizing bioimpedance technology. The system integrates a microcontroller (STM32F4), an impedance measurement chip circuit (MAX30009), and a virtual keyboard interface implemented in PyQt. The impedance circuit generates a sinusoidal current at 66.944 kHz, measuring voltage responses for impedance calculations. The system detects impedance changes during hand contact, enabling flexible touch interaction on the hands.