KY-031 Vibration Knock Sensor

The KY-031 shock/shock sensor module is an electronic module designed to detect shocks or vibrations on its surface. This module is widely used in hobbyist electronics projects, interactive installations, and smart home systems. This module typically includes a small sensor element that can detect vibrations or shocks.

Touch-based user interfaces: Can be used to create contactless controls for electronic devices or interactive installations.

Security systems: The module can be used to detect knocks on doors, windows or other surfaces and trigger a notification or alarm.

Smart Home: It can be integrated into smart home systems to trigger specific actions based on taps or pulses, such as turning on lights or activating electrical appliances.

Robotics: It can be used in robotics projects to detect interactions or impacts with the robot surface.

Working voltage: 3.3V to 5V DC

Output signal: digital (compatible with TTL)

Signal output: When a hit or touch is detected, the high signal (1) is output; When no hit or touch is detected, a low (0) signal is output.

Sensitivity adjustment: The module may have a potentiometer to adjust the sensitivity of the sensor. This allows users to optimize the sensitivity of the sensor to react to different levels of shocks or touches.

Detection method: The sensor uses an accelerometer or piezoelectric element to detect changes in acceleration or movement due to impacts or touches on its surface.

Indicator LED: Some versions of the module may have a built-in LED that lights up when a tap or touch is detected. This LED is an indicator for visual display of sensor performance.

Dimensions: The module comes in a small size and its dimensions may vary depending on the manufacturer. Typical dimensions are approximately (L x W x H) 32 mm x 14 mm x 18 mm.