1. L9110S-chip motor drive 2. Module supply voltage: 2.5-12V 3 .Suitable Motor range: between motor operating voltage 2.5v-12V, the maximum operating current of 0.8A, the current smart car voltage and current market are within this range 4. Drive two DC motors, or a 4-wire 2-phase stepping motor. 5. PCB board size: 2.8cm x 2.1cm ultra-small size, suitable for assembly Is provided with a fixed mounting holes, diameter: 3mm Module interface 6P black curved pin instructions: VCC Connected to external 2.5V-12V voltage GND Connected to external GND IA1 Connected to external microcontroller IO port IB1 Connected to external microcontroller IO port IA2 Connected to external microcontroller IO port IB2 Connected to external microcontroller IO port 4P green terminal instructions: OA1 Connected to 2 pins of DC motor, no direction OA2 OB2 Connected to 2 pins of DC motor, no direction Module use instructions: Turn on VCC, GND, and the module power indicator is on; IA1 input high level, IA1 input low level, [OA1 ] motor forward rotation; IA1 input low level, IA1 input high level, [OA1 ] motor reversed; IA2 input high level, IA2 input low level, [OA2 OB2] motor forward rotation; IA2 input low level, IA2 input high level, [OA2 OB2] motor reverse Note: The installation of electronic modules requires basic knowledge and requires a certain electronic professional foundation and hands-on ability. Please purchase carefully! Colour:blue Material:PCB Package Contents: 10 x H-bridge Stepper Motor Dual DC Motor Driver Controller Board L9110S Only the above package content, other products are not included. Note: Light reflection 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.