// Driving a DC cell phone vibrating motor. 
// by Diana Fernandez 

 
int motorpin = 0;  // Vibrating motor connected to pin PWM 0 
 
void setup() 
{ 
  // nothing for setup 
} 
 
void loop() { 
  analogWrite(motorpin, 125);  // turn ON the Motor at medium speed 
  delay(100);                  
}