Mifare

GitHub - jekkos/android-hce-desfire: A HCE software implementation of the NXP Desfire NFC protocol in an Android app (to be used with Cyanogenmod HCE patch)GitHub

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Most Android hardware uses NXP PN544 as NFC controller. But some uses Broadcom BCM20793. The Mifare Classic is an NXP proprietary technology and only readable by mobile phones with NXP NFC controllers. Here is Android API regarding this support:

Advanced NFC overview  |  Connectivity  |  Android DevelopersAndroid Developers

For Dell E7470 which uses a Broadcom NFC controller:

GitHub - jacekkow/controlvault2-nfc-enable: Enable NFC on Linux for pcscd on Dell E7470 (and others) with ControlVault2GitHub

DIY electronic RFID Door Lock with Battery Backup - CodeProjectwww.codeproject.com

Mifare DESFire - An IntroductionLinkedInEditors