This is a motor driver board specially designed. Using I2C interface control, this module can drive 2 way DC motors at the same time. A good choice for DIY smart car. Features: 1.Based on interface design, suitable Zero/Zero W/Zero WH/2B/3B/3B+. 2.Using I2C interface control, this driver can connect up to 32 modules by changing 5 address jumpers. 3.Onboard PCA9685 chip, can output 12-bit hardware to PWM control motor speed. 4.Onboard TB6612FNG double H-bridge motor drive chip, work efficiently, not easy to heat. 5.Reserve the I2C control interface to facilitate the connection with other main control boards. 6.Onboard 5V voltage regulator chip, output up to 3A current. 7.This driver can be powered by connecting the VIN terminal to the battery. Specification: Supply voltage: 6V-12V (VIN terminal) Logic voltage: 3.3V Max output current: 3A PWM drive chip: PCA9685 Control interface: I2C Motor drive chip: TB6612FNG Weight: Approx. 26g Package list: 1 * Motor Driver Board 1 * Set of Screws