Module Knock Hit sensor module KY-031
The hit sensor registers hits and sends a high level signal to the output when hit.
These modules are also known as knock switches and can be used for touch detection, among other things.
compatible with Arduino
Operating voltage 5 V
Dimensions: 28 x 15 mm
1 – digital signal output
2 – power supply
3 – masse
Note: Images are for reference only See Product Specifications