Keyestudio Smart Little Turtle Robot V3 Manual page 182

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}
}
void car_front()//car goes forward
{
digitalWrite(left_ctrl,LOW);
analogWrite(left_pwm,200);
digitalWrite(right_ctrl,LOW);
analogWrite(right_pwm,200);
}
void car_back()//go back
{
digitalWrite(left_ctrl,HIGH);
analogWrite(left_pwm,200);
digitalWrite(right_ctrl,HIGH);
analogWrite(right_pwm,200);
}
void car_left()//car turns left
{
digitalWrite(left_ctrl,HIGH);
analogWrite(left_pwm,200);
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