A keyboard system comprises a housing and a key structure having a key body and key cap. The key body includes a transceiver circuit. The key cap includes a key cap transceiver and a memory structure storing a key cap ID data and/or a key function data corresponding to a key function. The transceiver circuit can poll the key cap memory via the key cap transceiver and retrieve the key cap ID data and/or the key function data. The keyboard system can determine a mapping of a location of the key cap on the keyboard by polling it and can generate and transmit a control signal to a host computing device communicatively coupled to the keyboard system based to the key cap ID and/or the key function data.

A key structure comprising a housing, a plunger extending from a top side of the housing and configured to be depressed and travel along a range of motion, a motion sensor system, and driving electronics, all contained within the housing, the sensor system configured to detect movement of the depressible plunger along the range of motion and generate corresponding travel data. One or more processors can be configured to determine a position of the plunger along the range of motion based on the travel data.

A key structure comprising a housing, a plunger extending from a top side of the housing and configured to be depressed and travel along a range of motion, a motion sensor system, and driving electronics, all contained within the housing, the sensor system configured to detect movement of the depressible plunger along the range of motion and generate corresponding travel data. One or more processors can be configured to determine a position of the plunger along the range of motion based on the travel data.