Packages and installation instructions can be downloaded from GitHub but once installed the motors library can be included from Sketch > Include Library. Lastly you must create an instance of the ZumoMotors class with:
Each the following available methods must be preceded with motors.
Flip the motor if they have been connected in reverse – accepts true or false;
static void flipLeftMotor(boolean flip); static void flipRightMotor(boolean flip);
Set speed for left, right, or both motors – accepts values from 0 to 400
static void setLeftSpeed(int speed); static void setRightSpeed(int speed); static void setSpeeds(int leftSpeed, int rightSpeed);