Product Description Module Description 1 dual L9110S chip motor 2 module power supply voltage: 2.5-12V 3 Suitable motor range: the working voltage of the motor is between 2.5v-12V, the maximum working current is 0.8A, the current voltage of the smart car and the current in the market are within this range. 4 It can drive 2 DC motors at the same time. time, or 1 x 2-phase 4-wire stepper motor. 5 PCB size: 2.8cm*2.1cm Ultra-small size, suitable for assembly 6 with fixed mounting holes, diameter : 3mm Two-module interface description [Instructions for 6P black curved pins] 1 External VDC 2.5V-12V voltage 2 External GND 3 External IO port IA1 MCU 4 IB1 MCU external IO port 5 IA2 external MCU IO port 6 IB2 external MCU IO port [4P green terminal description] 1 OA1 OB1 is connected to the motor at 2-pin DC, no direction 2 OA2 OB2 is connected to the DC motor with 2-pin, no direction Three module instructions Turn on VCC, GND module power indicator is on IA1 input high level, IA1 input low level, motor forward rotation [OA1 OB1]; IA1 input low level, IA1 input high level, [OA1 OB1] motor reversed; Input level IA2 high, IA2 input low, [OA2 OB2] motor forward rotation; IA2 low level input, IA2 high level input, [OA2 OB2] reverse motor; Wish you a happy shopping