From a7a7b49efe564d78de2cd787baef314ae0692a0a Mon Sep 17 00:00:00 2001
From: Torsten Stauder <stauder@ts-cs.de>
Date: Fri, 7 May 2021 11:19:42 +0200
Subject: [PATCH] Fix PN5180 to accept same card again

---
 src/RfidPn5180.cpp | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/src/RfidPn5180.cpp b/src/RfidPn5180.cpp
index 4609aa8..99d1e49 100644
--- a/src/RfidPn5180.cpp
+++ b/src/RfidPn5180.cpp
@@ -67,7 +67,7 @@ extern unsigned long Rfid_LastRfidCheckTimestamp;
         static PN5180ISO14443 nfc14443(RFID_CS, RFID_BUSY, RFID_RST);
         static PN5180ISO15693 nfc15693(RFID_CS, RFID_BUSY, RFID_RST);
         static uint8_t stateMachine = RFID_PN5180_STATE_INIT;
-        byte cardId[cardIdSize], lastCardId[cardIdSize];
+        byte cardId[cardIdSize];
         uint8_t uid[10];
         String cardIdString;
         bool cardReceived = false;
@@ -123,15 +123,6 @@ extern unsigned long Rfid_LastRfidCheckTimestamp;
         if (cardReceived) {
             memcpy(cardId, uid, cardIdSize);
 
-            // check for different card id
-            if (memcmp((const void *)cardId, (const void *)lastCardId, sizeof(cardId)) == 0) {
-                // reset state machine
-                stateMachine = RFID_PN5180_NFC14443_STATE_RESET;
-                return;
-            }
-
-            memcpy(lastCardId, cardId, cardIdSize);
-
             Log_Print((char *) FPSTR(rfidTagDetected), LOGLEVEL_NOTICE);
             for (uint8_t i = 0u; i < cardIdSize; i++) {
                 snprintf(Log_Buffer, Log_BufferLength, "%02x%s", cardId[i], (i < cardIdSize - 1u) ? "-" : "\n");