Send NFC messages using NFC Shield V2.0 by SeeedStudio.
The program uses the standard Arduino shields SPI pins:
Signal | Pin |
SCK | D13 |
MISO | D12 |
MOSI | D11 |
CS | D10 |
Note that this shield doesn't use the standard SPI pins, but relies on non-standard 6-pin SPI header located at the shield bottom. To make it work you will have to bridge those pins as shown on the image (the green SPI pins).
Signal | Pin 1 | Pin 2 |
MOSI | D11 | SPI4 |
MISO | D12 | SPI1 |
SCK | D13 | SPI3 |
main.cpp
- Committer:
- screamer
- Date:
- 2014-03-25
- Revision:
- 0:e403d7000b50
- Child:
- 2:f0e840a179ff
File content as of revision 0:e403d7000b50:
#include "mbed.h" #include "PN532_SPI.h" #include "snep.h" #include "NdefMessage.h" Serial pc(USBTX, USBRX); uint8_t ndefBuf[128]; int main() { wait(2); pc.printf("Initializing - "); SPI spi(D11, D12, D13); PN532_SPI pn532spi(spi, D10); SNEP nfc(pn532spi); pc.printf("Done\r\n"); while (1) { pc.printf("Sending message - "); NdefMessage message = NdefMessage(); message.addTextRecord("mbed NFC shield"); message.addUriRecord("http://www.seeedstudio.com"); int messageSize = message.getEncodedSize(); if (messageSize > sizeof(ndefBuf)) { pc.printf("ndefBuf is too small\r\n"); while (1) { } } message.encode(ndefBuf); if (0 >= nfc.write(ndefBuf, messageSize)) { pc.printf("Failed\r\n"); } else { pc.printf("Success\r\n"); } wait(3); } }