Microelectromechanical (MEMS) sensors and control interfaces, control, interface components, protocols, systems, and methods are described. An exemplary control interface can comprise one or more predefined symbols that facilitate control of a MEMS sensor over an existing pin of a package comprising one or more MEMS sensors. Provided implementations described read/write protocols that enable reading and/or writing internal registers associated with MEMS sensors and/or other electronic components or portions thereof. Embodiments of the subject disclosure can provide flexible and reusable control interfaces for MEMS sensors and associated protocols.