About this product
Jenis WarantiTiada Waranti
Contains Dangerous Goods?Tidak
Product description
This module is ideally suited to adding knock sensing to your project.
This is a knock detection module which can detect a percussion based event to trigger a switch like response.
This allows you to replace those mechanical switches that have been holding back your project all this time with something a little more violent.
The sensor itself has a light spring that is held from one end.
The opposite end is suspended above a large contact plate.
When a knock event occurs the spring moves within its casing and hits the plate.
This completes the circuit allowing a small amount of current to pass.
This can then be picked up by a microcontroller as a trigger event.
Knock (captive spring) sensor