Octopus Electronic Bricks, you can use them to build electronics projects just as easy as piling bricks. By using Octopus electronic bricks, you may connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connection are prepared to extensive modules like poteniometers, sensors, relays, servos even buttons, just plug and play.
Octopus Passive buzzer Brick is based on a Vibration sensor, High Sensitivity Vibration Detection Sensor - Golden. The Freaduino Sensor Shield
is the perfect shield to connect this senor to Arduino. Or Freaduino UNO
which we had pre-stray Octopus Brick interface.