Welcome to our store! Onboard for Micro:bit interface, which can be connected directly and used, very practical I2C interface control, only 2 signal wires are needed to realize servo drive Supports up to 16 steering gears or PWM outputs, each way with 12-bit resolution (4096 levels) Built-in 5V voltage regulator chip, up to 3A current output, can be connected to battery power supply via VIN terminal Built-in standard steering gear interface, which can be connected to common steering gears such as for SG90, for MG996R, etc. Reserved I2C control interface for easy access to other master control boards Item Type: 16 Servo Driver Board Material: PCB Purpose: Suitable for driving robot servos such as robot arms or hexapod robots. Supply Voltage: 5V (power interface) or 6V~12V (VIN terminal) Servo Voltage: 5V Logic Voltage: 3.3V Driver Chip: For PCA9685 Control Interface: I2C Product Size: Approx. 65 x 36 mm / 2.6 x 1.4 in Diameter through hole: Approx. 3 mm / 0.1 in 1 x 16 Servo Driver Customers are our top priority. If you find any issues with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.