KY-031 knock sensor module. A vibration sensor that sends a signal when a knock/tap is detected. Compatible with Arduino, ESP8266, …
Category: Movement & Distance
KY-020 Arduino tilt switch sensor module. Closes the circuit when it is tilted to the side as long as it …
Arduino KY-017 mercury tilt switch module, it uses a small mercury ball that completes the circuit when you tilt the module. …