Bluetooth chip USB, Bluetooth module, rf receiver circuit - tatanh1983/conchodom GitHub Wiki NT3H2111 Series 3.6 V 13.56 MHz Surface Mount RFID Transponder - XQFN-8 https://www.futureelectronics.com/p/semiconductors--wireless-rf--rf-modules-solutions--rfid/nt3h2111w0fhkh-nxp-5068096