This will guide you on how to play musical notes of any song on a piezoelectric buzzer, using Arduino Uno R3, a resistor and some connecting wires.

In this experiment we are going to work with a sensor which is a resistor that depends on light. In a dark environment, the resistor will have a very high resistance. As photons (light) land on the ...

RFID Module: Reads the UID from an RFID tag/card. If the UID matches the authorized UID, access is granted. This project is open-source and can be freely used for educational purposes. I demonstrate ...

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 ...

Figure an Arduino most matches the "Other" category. To be specific, it isn't an Arduino brand, it is a DigiSpark, but the trouble isn't with the device itself. The problem is with a buzzer. I got the ...