to colorize a colorful pixel with a simple touch using nfc technology

Dependencies:   Chainable_RGB_LED mbed

use Arch, NFC Shield and Grove - Chainable RGB LED to DIY a touch pixel. Then use an Android with NFC support to colorize it.

The project is on https://github.com/Seeed-Studio/TouchPixel

Revision:
0:88960f3eeb2c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nfc/NfcAdapter.h	Fri Dec 27 01:46:32 2013 +0000
@@ -0,0 +1,43 @@
+#ifndef NfcAdapter_h
+#define NfcAdapter_h
+
+#include <PN532Interface.h>
+#include <PN532.h>
+#include <NfcTag.h>
+#include <Ndef.h>
+
+// Drivers
+#include <MifareClassic.h>
+#include <MifareUltralight.h>
+
+#define TAG_TYPE_MIFARE_CLASSIC (0)
+#define TAG_TYPE_1 (1)
+#define TAG_TYPE_2 (2)
+#define TAG_TYPE_3 (3)
+#define TAG_TYPE_4 (4)
+#define TAG_TYPE_UNKNOWN (99)
+
+#define IRQ   (2)
+#define RESET (3)  // Not connected by default on the NFC Shield
+
+class NfcAdapter {
+    public:
+        NfcAdapter(PN532Interface &interface);
+
+        ~NfcAdapter(void);
+        void begin(void);
+        bool tagPresent(); // tagAvailable
+        NfcTag read();
+        bool write(NdefMessage& ndefMessage);
+        // FUTURE bool share(NdefMessage& ndefMessage);
+        // FUTURE bool unshare();
+        // FUTURE bool erase();
+        // FUTURE bool format();
+    private:
+        PN532* shield;
+        uint8_t uid[7];    // Buffer to store the returned UID
+        unsigned int uidLength; // Length of the UID (4 or 7 uint8_ts depending on ISO14443A card type)
+        unsigned int guessTagType();
+};
+
+#endif