and the built-in independent MCU of the bus servo will not occupy the computing resources of the upper computer, greatly reducing project development time and cost and reducing development difficulty. Adaptateur Servomoteur Bus Série Waveshare Metal Flat Key Shaft Flange Plate, Suitable For Accessoire Transmission Servo Moteur [Used with bus steering gear]The bus servo is equipped with an absolute angle encoder and an independent MCU computing unit, which can accurately control the rotation angle, speed, and acceleration. [Applicable Servo Model]ST3215-HS Servo Motor; ST3215 Servo; ST3025 Servo; ST3020 Servo; SC15 Servo Serial Bus Servo Driver HAT (A) can drive up to 253 servos [It is easier to develop with bus steering gear]Using a bus servo to drive wheels or synchronous wheels, the position and speed control of the wheels can be achieved with just a few lines of code.