This is a simple Arduino Program that utilizes an Arduino Uno Microcontroller, MFRC-522 RFID Reader, An RGB Module, A Servo, A Piezo Speaker(Buzzer). This program simulates a simple access control ...

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 ...