Multi-control function: Servo driver allows controlling up to 253 ST/RSBL series serial bus servos at the same time 9~25V wide voltage:9~25V wide voltage input (the input voltage and the servo voltage must be matched) Wired and wireless: Servo motor driver based on the ESP32-WROOM-32 module, supports wired and wireless communication USB Type-C port: Servo driver hat for Raspberry Pi supports controlling the serial bus servos directly via onboard USB Type-C port, provides multiple control demos for different host controllers Connecting to Pi: Supports connecting to Raspberry Pi, powering the Pi via integrated 5V buck regulator circuit and communicating through GPIO UART interface, neat cable management