title: How to get RFID tag from ACS122U NFC
body: <p>I am working on ACS122U NFC which reads tag's RFID. From ACS  <a href="http://www.acs.com.hk/en/products/3/acr122u-usb-nfc-reader/" rel="nofollow">http://www.acs.com.hk/en/products/3/acr122u-usb-nfc-reader/</a> I got the development kit which will only connect to the reader and gives the state when a tag is placed on the NFC reader. But I need to get the ID (UID, serial number) of a tag for further implementation. How can I get the ID of a tag?</p>