I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

After making contact ten times, the buzzer blares out an annoying ... the serial messages sent by the Arduino and output a keyboard shortcut to control the VLC. Both codes can readily be modified ...

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 Velleman svm06. It says it is rated at 3-7VDC ...

Another element that we are going to use on this experiment is Piezo Buzzer. So what is it ? It’s an electronic device commonly used to produce and signaling a procces that is happening through a ...

and home automation applications that control LED lighting. It could also allow devices programmed with Arduino "sketches" to interact with each other over Bluetooth 4.0—potentially allowing for ...