1. L9110S-chip motor drive 2. Module supply voltage: 2.5-12V 3. Suitable motor range: operating voltage between 2.5V and 12V, maximum operating current of 0.8A; compatible with most smart car motors on the market within this range 4. Drives two DC motors or a 4-wire 2-phase stepper motor 5. PCB board size: 2.8cm x 2.1cm, compact design for easy assembly Includes fixed mounting holes with a diameter of 3mm Module interface: 6P black pin header: VCC Connect to external 2.5V-12V power source GND Connect to external ground IA1 Connect to microcontroller IO pin IB1 Connect to microcontroller IO pin IA2 Connect to microcontroller IO pin IB2 Connect to microcontroller IO pin 4P green terminal block: OA1, OB1 Connect to two terminals of DC motor (no polarity requirement) OA2, OB2 Connect to two terminals of DC motor (no polarity requirement) Module operation: When VCC and GND are powered, the module indicator light turns on IA1 high, IB1 low [OA1 OB1] motor runs forward IA1 low, IB1 high [OA1 OB1] motor reverses IA2 high, IB2 low [OA2 OB2] motor runs forward IA2 low, IB2 high [OA2 OB2] motor reverses Note: Installation requires basic electronic knowledge and hands-on experience. Intended for users with fundamental electronics skills. Color: Blue Material: PCB Package Contents: 5 x H-bridge Dual DC Motor Driver Controller Board L9110S Package includes only the items listed above; other accessories not included Note: Due to lighting effects and monitor settings, actual product color may vary slightly from images. Measurement may vary by +/- 1-3cm.