How to run Vibrator - Lilypad Vibe board

Hi, I have a project with a ultrasonic HC-SR04 Sensor and I want to take that signal and make a vibrator vibe more or less depending on what the sensor outputs.

I really have no idea how to make this happen. Right now the sensor is hooked up to a buzzer that indicates distance.

Do i hook up the vibe board to GND and a digital pin or do I need some resistors or anything in between?

How do I make the vibrator vibrate?

Many thanks!

This is what i tried so far, but it doesn´t work

void setup()
{
  pinMode(4, OUTPUT);
} 


void loop() {
  // put your main code here, to run repeatedly:
 digitalWrite(4, HIGH); // turn the Vibrator on (HIGH is the voltage level)
 delay(1000); // wait for a second
 digitalWrite(4, LOW); // turn the Vibrator off by making the voltage LOW
 delay(1000); 
 }

Anyone got any ideas?

Vibe board is connected to GND and Pin 4

Found this on another site:

The Lilypad Vibe Board is an excellent way to quickly integrate haptic effects into a wearable project.
It uses an eccentric rotating mass (ERM) motor and can be driven directly 
from a general purpose IO pin from an Arduino board. It relies on 5-volt logic
 and places a 33-ohm resistor in series with the DC motor to reduce the current
draw below the 40ma maximum that can be drawn from an output pin of
 an Arduino board. It also contains a protective diode to prevent damage 
to a connected IC.

Although the Lilypad Vibe Board can be integrated very quickly into a project
 and uses a well-designed circular PCB with sewable and solderable pads,
 the board cannot be used to produce advanced haptic effects easily. 
Because its current draw is limited to the output of an Arduino output pin,
 its vibration does not reach the rated maximum of the motor. Likewise, 
it contains no pre-programmed effects, and the reduced power consumption
 also reduces the effectiveness of pulse-width modulation for creating custom
 effects. We recommend using it for projects and prototypes that require 
simple alerts – its ease of integration makes it very useful when advanced
 effects aren’t necessary.

Thx

This is what i tried so far, but it doesn´t work

Saying it doesn't work is not very helpful.

Tells us what you expect to happen.
Tell us what actually happens and how that differs from your expectations.

Show us a wiring diagram. Pencil, paper and a camera are just fine. Include proper detail like pin numbers.

A link to your vibe motor would help.