The Crowtail-knock sensor is a piezoelectric sensor that contains a piezoelectric sensing crystal and a resister. This crystal creates a small amount of voltage when shaken and takes advantage of this unique property. It will output a pulse when vibration is detected.

Speksit

• Digital Crowtail connector
• Presence sensing: vibration
• Sensor: KY-031
• Power supply: 5V
• Dimensions(mm):20.0(L)x20.0(W)x7.1(H)

Osalista

• Crowtail-knock sensor x 1

Linkkivinkit

• User manual (wiki link)