The piezoelectric sensor converts mechanical stress (such as pressure or vibrations) into electrical signals. The Arduino reads these signals and outputs the sensor values to the Serial Monitor.

By reading different values from the sensor, we can detect if is it light , dark or a value between them. Another element that we are going to use on this experiment is Piezo Buzzer. So what is it ?

This script also controls a TTF screen to show sensor data. By un-commenting sections, different sensor values can be displayed on the TTF screen and specific sensor and voltage values can also be ...

Connect the piezo buzzer’s black wire to GND and its red wire to Arduino pin 11 ... Arduino to your computer using the USB cable. Open the Serial Monitor in your IDE to see the values from the sensor ...

Abstract: This paper proposes the use of Rochelle salt (KNaC4O6.4H2O) as a piezoelectric sensor for efficient smart energy saving systems. The piezoelectric properties of Rochelle salt tested for ...