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100 lines
3.0 KiB
Plaintext
100 lines
3.0 KiB
Plaintext
/**************************************************************************/
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/*!
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This example will attempt to connect to an ISO14443A
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card or tag and retrieve some basic information about it
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that can be used to determine what type of card it is.
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Note that you need the baud rate to be 115200 because we need to print
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out the data and read from the card at the same time!
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To enable debug message, define DEBUG in PN532/PN532_debug.h
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*/
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/**************************************************************************/
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/* When the number after #if set as 1, it will be switch to SPI Mode*/
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#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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PN532_SPI pn532spi(SPI, 10);
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PN532 nfc(pn532spi);
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/* When the number after #elif set as 1, it will be switch to HSU Mode*/
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#elif 0
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#include <PN532_HSU.h>
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#include <PN532.h>
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PN532_HSU pn532hsu(Serial1);
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PN532 nfc(pn532hsu);
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/* When the number after #if & #elif set as 0, it will be switch to I2C Mode*/
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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 pn532i2c(Wire);
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PN532 nfc(pn532i2c);
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#endif
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void setup(void) {
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Serial.begin(115200);
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Serial.println("Hello!");
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nfc.begin();
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uint32_t versiondata = nfc.getFirmwareVersion();
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if (! versiondata) {
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Serial.print("Didn't find PN53x board");
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while (1); // halt
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}
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// Got ok data, print it out!
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Serial.print("Found chip PN5"); Serial.println((versiondata>>24) & 0xFF, HEX);
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Serial.print("Firmware ver. "); Serial.print((versiondata>>16) & 0xFF, DEC);
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Serial.print('.'); Serial.println((versiondata>>8) & 0xFF, DEC);
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// Set the max number of retry attempts to read from a card
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// This prevents us from waiting forever for a card, which is
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// the default behaviour of the PN532.
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nfc.setPassiveActivationRetries(0xFF);
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// configure board to read RFID tags
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nfc.SAMConfig();
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Serial.println("Waiting for an ISO14443A card");
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}
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void loop(void) {
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boolean success;
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uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 }; // Buffer to store the returned UID
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uint8_t uidLength; // Length of the UID (4 or 7 bytes depending on ISO14443A card type)
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// Wait for an ISO14443A type cards (Mifare, etc.). When one is found
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// 'uid' will be populated with the UID, and uidLength will indicate
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// if the uid is 4 bytes (Mifare Classic) or 7 bytes (Mifare Ultralight)
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success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, &uid[0], &uidLength);
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if (success) {
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Serial.println("Found a card!");
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Serial.print("UID Length: ");Serial.print(uidLength, DEC);Serial.println(" bytes");
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Serial.print("UID Value: ");
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for (uint8_t i=0; i < uidLength; i++)
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{
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Serial.print(" 0x");Serial.print(uid[i], HEX);
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}
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Serial.println("");
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// Wait 1 second before continuing
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delay(1000);
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}
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else
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{
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// PN532 probably timed out waiting for a card
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Serial.println("Timed out waiting for a card");
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}
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}
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