This simple fire alarm circuit uses a smoke sensor, a piezo buzzer for audible alerts, and an LED for visual signaling. When the smoke sensor detects the presence of smoke or gases, it sends a signal ...

• The player generates tones through a piezo buzzer and displays song information on an LCD. • Volume and brightness are potentiometer adjustable. • Implemented functions such as Prev/Next, Play/Pause ...

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 ...

Abstract: The paper aims to design and implement a low cost and reliable quiz buzzer system with the help of Arduino and seven segment display for easier detection of contestants or participants ...