Force-sensitive resistor

An electronic sensor whose electrical resistance changes in response to applied physical pressure, enabling detection of both the presence and intensity of touch or force. In accessibility applications, force-sensitive resistors offer advantages over capacitive touchscreens because they can be operated through gloves, foam padding, or with non-standard body parts such as elbows or fists, and they do not require direct skin contact. Grids of FSRs can create pressure-sensitive input surfaces that support gestures like pressing, swiping, and squeezing while accommodating users with motor impairments, sensory deficits, or prosthetics.