A servo motor controller is an electronic device that manages the operation of a servo motor. It receives input signals, typically from a microcontroller or a computer, and adjusts the motor's position, speed, and torque accordingly. This precise control makes servo motor controllers essential in applications like robotics, automation, and CNC machines. These controllers work by interpreting commands and sending the appropriate signals to the servo motor. They often include feedback mechanisms, such as encoders, to ensure accurate positioning. This feedback loop allows for real-time adjustments, enhancing the performance and reliability of systems that rely on precise motor control.