Features: Usage of TB6612:TB6612 is double drive, which means it can drive two motors The following is the IO port for controlling two motors The STBY port is connecting to the IO port of the microcontroller, and all motors is reset to stop. Setting 1 controls the forward and reverse rotation through AIN1, AIN2, BIN1, and BIN2VM connecting to power supply within 12V VCC connecting to 5V power supply Drive 1wayPWMA connecting to the PWM port of the microcontroller table:AIN1 0 0 1AIN2 0 1 0Stop forward and reverse transmissionA01 AO2 is connecting to the two pin of motor 1Drive 2 channelPWMB connecting to the PWM port of the microcontrollertable:BIN1 0 0 1BIN2 0 1 0Stop forward and reverse transmissionB01Connect the two pin of BO2 to motor2 Specifications: Component:Plastic Size:Approx.21.5x19.2mm/0.85x0.76inch OptionType:1pc Motor Driver Module,3pcs Motor Driver Module; for Microcontroller Package Includes: Package A 1pc Motor Driver Module Package B 3pcs Motor Driver Module note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.