KY-031 B24 Knock Sensor Module Switch for Arduino Raspberry Pi

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.

Parameters:

• Length: 19mm

• Width: 15mm

• Height: 10mm

• Main Colour: Black

• Country of Manufacture: China

• UPC: Does Not Apply

• Minimum Operating Temperature: -40°C

• Maximum Operating Temperature: 85°C

• Pin Pitch: 2.54mm

• Mounting Hole Size: M2

• Mounting Dimensions: 11mm

• Noted Onboard Components: Captive spring

• Sensor Property: Vibration