Keyestudio Smart Little Turtle Robot V3 Manual page 178

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void setup() {
Serial.begin(9600);//open serial monitor and set baud rate to 9600
pinMode(left_ctrl,OUTPUT);//set direction control pin of A motor to
OUTPUT
pinMode(left_pwm,OUTPUT);//set PWM control pin of A motor to
OUTPUT
pinMode(right_ctrl,OUTPUT);//set direction control pin of B motor to
OUTPUT
pinMode(right_pwm,OUTPUT);//set PWM control pin of B motor to
OUTPUT
servopulse(servopin,90);//the angle of servo is 90 degree
delay(300);
myMatrix.begin(112);
myMatrix.clear();
}
void loop()
{
avoid();//run the main program
}
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