void setup() {
Serial.begin(115200); // set the baudrate=115200
pinMode(9,OUTPUT);    // use pins 10 and 11 for motor output
pinMode(10,OUTPUT);
analogWrite(9,100);   // Motor runs at a low speed
analogWrite(10,0);
delay(3000);          // 3 second delay
analogWrite(9,0);     //
analogWrite(10,100);  // Motor runs in the reverse direction for
delay(2000);          // 2 seconds
analogWrite(9,0);     // Motor is stopped
analogWrite(10,0);    //
}
void loop(){
  // Code here runs in an infinite loop
}
