static void Main(string[] args) { //Create reader settings ReaderSettings readerSettings = new ReaderSettings() { DeviceName = "ACS - ACR122U PICC Interface" }; //Create reader credentials ReaderCredentials readerCredentials = new ReaderCredentials() { ApiKey = "ABCDE1234ABCDE1234ABCDE1234" //This API key is provided by Cards }; //Create a card reader CardReader cardReader = new CardReader(readerSettings, readerCredentials); //Subscribe to Card Tap event cardReader.OnCardTap += HandleCardTap; //Subscribe to Status Change event cardReader.OnStatusChange += HandleStatusChange; //Start listening! cardReader.Listen(); }