A Grove KnockKnock Sensor is a simple device that detects vibrations or shocks from knocking or tapping it. It is basically an electronic switch which normally open. When it detects any shock or ...

How Does a Sound Sensor Module Work? The working of the sounds sensor module is very simple and easy to understand, the main component in this module is a condenser microphone. The microphone gives ...

We can read that current using the Arduino and we are going to do that now by making a knock sensor. ####Parts Required Piezo Sounder (or piezo disc) 2-Way Screw Terminal . Red Diffused 5mm LED . 1MΩ ...

Based on Arduino, a security system model is presented in this paper. Knock pattern is produced with the construction of piezo sensor and Arduino series board. The Knock detector is a distinctive way ...