How do i return the value of the RFID card (with the actual numbers/letters) using simple code? I am using the sparkfun RFID starter kit and have attached the RFID reader to the Arduino using the TX pin. I am hoping that when i place the RFID card within range of the reader it will print out the id of the card (on screen). Eventually I am hoping to use this information so that when it senses that a specific ID card is read (this is where i will use the ID of the card) the Arduino will complete an action like turn a servo and/or blink a light. I am new to code and the simpler the better.