/technologies/businessofengineering/b/blog/posts/nfc-tandem-concept-combine-nfc-reader-and-connected-tag-solutionNFC Tandem offers best of both worlds: An NFC reader and a passive connected tag sharing one antenna. A user can interact with the device when it is powered off (through the NTAG I²C plus); when the device is powered, it can interact with cards...en-USTelligent Community 12