Datasheet

delay(1000);

MotorDirectionSet(0b0101); //0b0101 Rotating in the opposite direction

delay(500);

}

In this program, Arduino first set the speed of the 2 DC motors with the MotorSpeedSetAB()command,

and then set the DC motors work directions with MotorDirectionSet() command. Please refer to

the Function Reference for details, you can download all the demo code in the Resource.

6.3 How to driver a stepper using I2C motor driver V1.3

As the upgraded version of I2C motor DriverV1.2, You can drive stepper via 2 methods for I2C motor driver

V1.3.

1. Control the stepper directly by Arduino

The I2C motor Driver can also be used to drive a 4-wire stepper. Connect your stepper to the output pins

of I2C motor driver, and then connect motor driver to your Arduino/Seeeduino with I2C bus. Program your

Arduino as below:

#include <Wire.h>

.......

< Driver functions >

.......

void setup() {

Wire.begin(); // join i2c bus (address optional for master)

delayMicroseconds(10000); //wait for motor driver to initialization

}

void loop() {

while(1) {

MotorSpeedSetAB(100,100);//when driving a stepper, the speed should be set to 100;

delay(10);

MotorDirectionSet(0b0001);

delay(4);

MotorDirectionSet(0b0011);

delay(4);

MotorDirectionSet(0b0010);

delay(4);

MotorDirectionSet(0b0110);

delay(4);

MotorDirectionSet(0b0100);

delay(4);