87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
#if 0
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#include <SPI.h>
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#include <PN532_SPI.h>
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#include <PN532.h>
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#include <NfcAdapter.h>
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PN532_SPI pn532spi(SPI, 10);
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NfcAdapter nfc = NfcAdapter(pn532spi);
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#else
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#include <Wire.h>
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#include <PN532_I2C.h>
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#include <PN532.h>
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#include <NfcAdapter.h>
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PN532_I2C pn532_i2c(Wire);
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NfcAdapter nfc = NfcAdapter(pn532_i2c);
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#endif
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void setup(void) {
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Serial.begin(9600);
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Serial.println("NDEF Reader");
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nfc.begin();
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}
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void loop(void) {
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Serial.println("\nScan a NFC tag\n");
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if (nfc.tagPresent())
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{
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NfcTag tag = nfc.read();
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Serial.println(tag.getTagType());
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Serial.print("UID: ");Serial.println(tag.getUidString());
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if (tag.hasNdefMessage()) // every tag won't have a message
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{
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NdefMessage message = tag.getNdefMessage();
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Serial.print("\nThis NFC Tag contains an NDEF Message with ");
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Serial.print(message.getRecordCount());
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Serial.print(" NDEF Record");
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if (message.getRecordCount() != 1) {
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Serial.print("s");
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}
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Serial.println(".");
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// cycle through the records, printing some info from each
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int recordCount = message.getRecordCount();
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for (int i = 0; i < recordCount; i++)
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{
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Serial.print("\nNDEF Record ");Serial.println(i+1);
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NdefRecord record = message.getRecord(i);
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// NdefRecord record = message[i]; // alternate syntax
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Serial.print(" TNF: ");Serial.println(record.getTnf());
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Serial.print(" Type: ");Serial.println(record.getType()); // will be "" for TNF_EMPTY
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// The TNF and Type should be used to determine how your application processes the payload
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// There's no generic processing for the payload, it's returned as a byte[]
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int payloadLength = record.getPayloadLength();
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byte payload[payloadLength];
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record.getPayload(payload);
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// Print the Hex and Printable Characters
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Serial.print(" Payload (HEX): ");
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PrintHexChar(payload, payloadLength);
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// Force the data into a String (might work depending on the content)
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// Real code should use smarter processing
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String payloadAsString = "";
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for (int c = 0; c < payloadLength; c++) {
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payloadAsString += (char)payload[c];
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}
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Serial.print(" Payload (as String): ");
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Serial.println(payloadAsString);
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// id is probably blank and will return ""
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String uid = record.getId();
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if (uid != "") {
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Serial.print(" ID: ");Serial.println(uid);
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}
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}
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}
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}
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delay(3000);
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}
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