A Pressure Sensor Based Wearable Foot Interaction System and Its Applications

Individuals with upper-body motor impairments, but having full lower-body functionality, can use their feet to interact with mobile devices, such as smartphones and tablets. However, they face significant challenges controlling mobile devices and entering text via touchscreen with their feet. Moreover, such interactions are typically limited to specific scenarios, such as sitting on a bed. To address this, we developed a wearable, pressure-sensor-based foot interaction system featuring a novel two-key text entry method. Two use case studies, with a total of 18 participants, demonstrated that our system enables these individuals to control devices and achieve acceptable text entry speeds in diverse scenarios.