This small vibrator motor can vibrate like your phone. When using it, You only need to power for the module and then send "Vibration" command. In fact, The "Vibration" command is setting control pins to high level, then it will work. I like this module because it can creat a short-term shock to prompt me whether one operation was successful, such as shaking my arm to switch my iPhone songs, which sound terrible, and it is not like the buzzer which sound terrible. ![enter image description here][1] Xadow is a though small but perfectly formed Arduino(TM) compatible board series containing several modules. It's a kit extremely suitable for space-sensitive projects such as wearable devices & arts designs, which have higher request on size, weight and flexible cascade connection. You can find more modules here. For more detail, please visit: http://www.seeedstudio.com/item_detail.html?p_id=1517 Demonstration Here is a Demo Code showing how to turn on the vibration motor. Hardware Installation: ![enter image description here][2] Note: when connect Xadow Vibrator Motor to Xadow Main Board, you should concern about the connection direction. The connection method is that the unfilled corner of one Xadow module need to connect to the right angle of another module(see four corners of each Xadow module). Demo code like this: void setup() { DDRF |= 0x01; DDRB |= 0x04; } void loop() { //turn on the vibration motor PORTF |= 0x01; PORTB |= 0x04; delay(1000); //turn off the vibration motor PORTF &= ~(0x01); PORTB |= 0x04; delay(1000); //turn on the vibration motor PORTF |= 0x01; PORTB |= 0x04; delay(1000); //turn off the vibration motor PORTF |= 0x01; PORTB &= ~(0x04); delay(1000); //turn on the vibration motor PORTF |= 0x01; PORTB |= 0x04; delay(1000); //turn off the vibration motor PORTF &= ~(0x01); PORTB &= ~(0x04); delay(1000); } [1]: http://www.seeedstudio.com/depot/bmz_cache/1/16ef4e4ed63a020058c0f789a56c666c.image.530x397.jpg [2]: http://www.seeedstudio.com/wiki/images/thumb/d/d1/XadowVibration.jpg/600px-XadowVibration.jpg