Hello! We have to do a schoolproject with an Arduino. We basically have to let something vibrate and when you press a button the vibration stops and it starts again in 3 minutes (and repeat). Can someone help us with this case?
Do you have a means of making the vibration, like a vibrator motor as used in mobile phones? You can't hook such a motor up to a digital pin direct- come back with details of the hardware you have.
But controlling (as opposed to powering) such a motor is really no different from controlling an led so you don't really need a vibrator to prove that it works.