adds libararies and example code

main/main.ino

@@ -1,9 +1,43 @@
-void setup() {
+#include <PN532.h>
-  // put your setup code here, to run once:
+#include <SPI.h>
 
+#define PN532_CS 10
+
+PN532 nfc(PN532_CS);
+
+const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
+LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
+
+void setup(void) {
+  nfc.begin();
+
+  uint32_t versiondata = nfc.getFirmwareVersion();
+  if (! versiondata) {
+    while (1); // halt
+  }
+  // configure board to read RFID tags and cards
+  nfc.SAMConfig();
 }
 
-void loop() {
+void loop(void) {
-  // put your main code here, to run repeatedly:
+  uint32_t id;
+  // look for MiFare type cards
+  id = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A);
+  if (id != 0) 
+  {
+  
+    uint8_t keys[]= { 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF };
+    if(nfc.authenticateBlock(1, id ,0x08,KEY_A,keys)) //authenticate block 0x08
+    {
+      //if authentication successful
+
+      uint8_t block[16];
+      //read memory block 0x08
+      if(nfc.readMemoryBlock(1,0x08,block))
+      {
 
       }
+    }
+  }
+ delay(1000);
+}