A stepper driver is an electronic device that manages the precise movement of stepper motors by sending electrical pulses to control their rotation and position. Commonly used in applications requiring accurate motion control, such as 3D printers, CNC machines, and robotics, stepper drivers interpret control signals from a microcontroller or computer and translate them into the correct sequence of voltage changes. This allows the stepper motor to move in discrete steps, providing high positioning accuracy. Stepper drivers often include features like current regulation, microstepping, and protection circuits to enhance performance and reliability. In cybersecurity contexts, securing the communication and firmware of stepper drivers is important to prevent unauthorized access or tampering, especially in industrial or critical infrastructure environments.