1. Based on for Raspberry Pi 40pin GPIO interface, suitable for Raspberry Pi series motherboards2. I2C interface control, up to 32 modules can be connected at the same time by changing 5 address jumpers3. The onboard PCA9685 chip can output 12-bit hardware PWM to control the motor speed4. On-board TB6612FNG dual H-bridge motor driver chip, efficient work and not easy to heat5. The onboard 5V voltage regulator chip can output up to 3A current, which can be connected to the battery through the VIN terminalReserve I2C control interface for easy access to other main control boardsSupply voltage: 6V-12V (VIN terminal)Logic voltage: 3.3VPWM driver chip: PCA9685Control interface: I2CMotor driver chip: TB6612FNGProduct size: 65x30mmVia diameter: 3.0mmColour:blueMaterial:PCB+MetalPackage Contents:1 x motor driver boardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.