upd examples

examples/MifareClassicValueBlock/MifareClassicValueBlock.ino

@@ -95,7 +95,7 @@ void loop() {
     byte valueBlockA    = 5;
     byte valueBlockB    = 6;
     byte trailerBlock   = 7;
-    byte status;
+    MFRC522::StatusCode status;
     byte buffer[18];
     byte size = sizeof(buffer);
     long value;
@@ -278,7 +278,7 @@ void dump_byte_array(byte *buffer, byte bufferSize) {
 void formatValueBlock(byte blockAddr) {
     byte buffer[18];
     byte size = sizeof(buffer);
-    byte status;
+    MFRC522::StatusCode status;
 
     Serial.print(F("Reading block ")); Serial.println(blockAddr);
     status = mfrc522.MIFARE_Read(blockAddr, buffer, &size);

examples/ReadAndWrite/ReadAndWrite.ino

@@ -99,7 +99,7 @@ void loop() {
         0x0c, 0x0d, 0x0e, 0x0f  // 13, 14,  15, 16
     };
     byte trailerBlock   = 7;
-    byte status;
+    MFRC522::StatusCode status;
     byte buffer[18];
     byte size = sizeof(buffer);
 

examples/rfid_default_keys/rfid_default_keys.ino

@@ -80,7 +80,7 @@ boolean try_key(MFRC522::MIFARE_Key *key)
     boolean result = false;
     byte buffer[18];
     byte block = 0;
-    byte status;
+    MFRC522::StatusCode status;
     
     // Serial.println(F("Authenticating using key A..."));
     status = mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, block, key, &(mfrc522.uid));

examples/rfid_write_personal_data/rfid_write_personal_data.ino

@@ -58,7 +58,8 @@ void loop() {
          
         byte buffer[34];  
         byte block;
-        byte status, len;
+        MFRC522::StatusCode status;
+        byte len;
         
         Serial.setTimeout(20000L) ;     // wait until 20 seconds for input from serial
         // Ask personal data: Family name