added arduino nfcReader files (#42)

Arduino/nfcReader/PN532/examples/FeliCa_card_detection/FeliCa_card_detection.pde

@@ -0,0 +1,115 @@
+/**************************************************************************/
+/*!
+    This example will attempt to connect to an FeliCa
+    card or tag and retrieve some basic information about it
+    that can be used to determine what type of card it is.
+
+    Note that you need the baud rate to be 115200 because we need to print
+    out the data and read from the card at the same time!
+
+    To enable debug message, define DEBUG in PN532/PN532_debug.h
+
+ */
+/**************************************************************************/
+#include <Arduino.h>
+
+#if 1
+  #include <SPI.h>
+  #include <PN532_SPI.h>
+  #include <PN532.h>
+
+PN532_SPI pn532spi(SPI, 10);
+PN532 nfc(pn532spi);
+#elif 0
+  #include <PN532_HSU.h>
+  #include <PN532.h>
+
+PN532_HSU pn532hsu(Serial1);
+PN532 nfc(pn532hsu);
+#else
+  #include <Wire.h>
+  #include <PN532_I2C.h>
+  #include <PN532.h>
+
+PN532_I2C pn532i2c(Wire);
+PN532 nfc(pn532i2c);
+#endif
+
+#include <PN532_debug.h>
+
+uint8_t        _prevIDm[8];
+unsigned long  _prevTime;
+
+void setup(void)
+{
+  Serial.begin(115200);
+  Serial.println("Hello!");
+
+  nfc.begin();
+
+  uint32_t versiondata = nfc.getFirmwareVersion();
+  if (!versiondata)
+  {
+    Serial.print("Didn't find PN53x board");
+    while (1) {delay(10);};      // halt
+  }
+
+  // Got ok data, print it out!
+  Serial.print("Found chip PN5"); Serial.println((versiondata >> 24) & 0xFF, HEX);
+  Serial.print("Firmware ver. "); Serial.print((versiondata >> 16) & 0xFF, DEC);
+  Serial.print('.'); Serial.println((versiondata >> 8) & 0xFF, DEC);
+
+  // Set the max number of retry attempts to read from a card
+  // This prevents us from waiting forever for a card, which is
+  // the default behaviour of the PN532.
+  nfc.setPassiveActivationRetries(0xFF);
+  nfc.SAMConfig();
+
+  memset(_prevIDm, 0, 8);
+}
+
+void loop(void)
+{
+  uint8_t ret;
+  uint16_t systemCode = 0xFFFF;
+  uint8_t requestCode = 0x01;       // System Code request
+  uint8_t idm[8];
+  uint8_t pmm[8];
+  uint16_t systemCodeResponse;
+
+  // Wait for an FeliCa type cards.
+  // When one is found, some basic information such as IDm, PMm, and System Code are retrieved.
+  Serial.print("Waiting for an FeliCa card...  ");
+  ret = nfc.felica_Polling(systemCode, requestCode, idm, pmm, &systemCodeResponse, 5000);
+
+  if (ret != 1)
+  {
+    Serial.println("Could not find a card");
+    delay(500);
+    return;
+  }
+
+  if ( memcmp(idm, _prevIDm, 8) == 0 ) {
+    if ( (millis() - _prevTime) < 3000 ) {
+      Serial.println("Same card");
+      delay(500);
+      return;
+    }
+  }
+
+  Serial.println("Found a card!");
+  Serial.print("  IDm: ");
+  nfc.PrintHex(idm, 8);
+  Serial.print("  PMm: ");
+  nfc.PrintHex(pmm, 8);
+  Serial.print("  System Code: ");
+  Serial.print(systemCodeResponse, HEX);
+  Serial.print("\n");
+
+  memcpy(_prevIDm, idm, 8);
+  _prevTime = millis();
+
+  // Wait 1 second before continuing
+  Serial.println("Card access completed!\n");
+  delay(1000);
+}