initial commit

examples/p2p_with_ndef_library/p2p_with_ndef_library.ino

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+// send a NDEF message to adnroid or get a NDEF message
+//
+// note: [NDEF library](https://github.com/Don/NDEF) is needed.
+
+#include "SPI.h"
+#include "PN532_SPI.h"
+#include "snep.h"
+#include "NdefMessage.h"
+
+PN532_SPI pn532spi(SPI, 10);
+SNEP nfc(pn532spi);
+uint8_t ndefBuf[128];
+
+void setup()
+{
+    Serial.begin(115200);
+    Serial.println("-------Peer to Peer--------");
+}
+
+void loop()
+{
+#if 1
+    Serial.println("Send a message to Android");
+    NdefMessage message = NdefMessage();
+    message.addUriRecord("http://www.seeedstudio.com");
+    int messageSize = message.getEncodedSize();
+    if (messageSize > sizeof(ndefBuf)) {
+        Serial.println("ndefBuf is too small");
+        while (1) {
+        }
+
+    }
+
+    message.encode(ndefBuf);
+    if (0 >= nfc.write(ndefBuf, messageSize)) {
+        Serial.println("Failed");
+    } else {
+        Serial.println("Success");
+    }
+
+    delay(3000);
+#else
+    Serial.println("Get a message from Android");
+    int msgSize = nfc.read(ndefBuf, sizeof(ndefBuf));
+    if (msgSize > 0) {
+        NdefMessage msg  = NdefMessage(ndefBuf, msgSize);
+        msg.print();
+        Serial.println("\nSuccess");
+    } else {
+        Serial.println("failed");
+    }
+    delay(3000);
+#endif
+}
+