how to find 12 digit RFID card number??? | Microcontroller › Arduino › how to find 12 digit RFID card number??? This topic has 1 reply, 2 voices, and was last updated 8 years, 5 months ago by Prabakaran P M. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts April 19, 2016 at 7:02 am #4420 sagar shahParticipant CARD 18 DIGIT NUMBER :- 0009008413 137,29981**strong text** But one problem is my overall project interfacing done now me try to expand system .how to get card number ? June 27, 2016 at 11:12 am #14022 Prabakaran P MParticipant You can get the card number by getting the output of the RFID reader in a terminal window. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In