After the buzzer goes off, you need to press the star (*) button on the keypad before inputting your four-digit code. As you type the passcode, the buzzer's tone switches to a continuous but still ...

After uploading the code the Piezo will start making short beeps. On bright light the Piezo will only beep and on dark light it will be short. Some ideas for this experiment: Alarm for Lights in the ...

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 ...

You can read the state of a button using Arduino and a few lines of code. The actual state is shown in the Serial Monitor window as 0 or 1, 0 meaning the button is not pressed and 1 that the button is ...

Arduino’s $87 Plug and Make Kit comes with all the parts needed to build seven ... a time-of-flight distance sensor, a buzzer, a thermometer and humidity sensor, and a set of three buttons.