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pn532: initial implementation
This driver was written using an Adafruit PN532 board: http://www.adafruit.com/products/364 It is based heavily on their arduino code, with significant modifications. Signed-off-by: Jon Trulson <jtrulson@ics.com> Signed-off-by: Zion Orent <zorent@ics.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
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Mihai Tudor Panu

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136
examples/javascript/pn532-writeurl.js
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136
examples/javascript/pn532-writeurl.js
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
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/*jshint unused:true */
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/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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// Load PN532 module
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var pn532 = require('jsupm_pn532');
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// Instantiate an PN532 on I2C bus 0 (default) using gpio 3 for the
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// IRQ, and gpio 2 for the reset pin.
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var myNFCObj = new pn532.PN532(3, 2);
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function writeUrl()
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{
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if (uidSize.getitem(0) != 7)
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{
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console.log("This example will only write an NDEF URI to preformatted");
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console.log("Mifare Ultralight or NTAG2XX tags");
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exit();
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}
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// 48 bytes is maximum data area on ultralight cards, so we use that
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// as the maximum datasize here. Obviously if you have a bigger
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// card, you can write more data.
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if (!myNFCObj.ntag2xx_WriteNDEFURI(pn532.PN532.NDEF_URIPREFIX_HTTP,
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url, 48))
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{
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// failure
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console.log("Failed to write NDEF record tag.");
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exit(1);
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}
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console.log("Success, URL record written to tag.");
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}
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function toHex(d, pad)
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{
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// pad should be between 1 and 8
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return ("00000000"+(Number(d).toString(16))).slice(-pad)
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}
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function exit()
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{
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clearInterval(myInterval);
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myNFCObj = null;
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pn532.cleanUp();
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pn532 = null;
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console.log("Exiting");
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process.exit(0);
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}
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// When exiting: clear interval, and print message
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process.on('SIGINT', function()
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{
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exit();
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});
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// "main"
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if (!myNFCObj.init())
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console.log("init() failed");
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var vers = myNFCObj.getFirmwareVersion();
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if (vers)
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console.log("Got firmware version: " + toHex(vers, 8));
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else
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{
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console.log("Could not identify PN532");
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exit();
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}
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// Now scan and identify any cards that come in range (1 for now)
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// Retry forever
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myNFCObj.setPassiveActivationRetries(0xff);
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myNFCObj.SAMConfig();
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var uidSize = new pn532.uint8Array(0);
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var uid = new pn532.uint8Array(7);
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// the URL we want to add as an NDEF record
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// NOTE: this cannot exceed 34 characters.
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url = "iotdk.intel.com";
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var myInterval = setInterval(function()
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{
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for (var x = 0; x < 7; x++)
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uid.setitem(x, 0);
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if (myNFCObj.readPassiveTargetID(pn532.PN532.BAUD_MIFARE_ISO14443A,
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uid, uidSize, 2000))
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{
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// found a card
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console.log("Found a card: UID len " + uidSize.getitem(0));
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process.stdout.write("UID: ");
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for (var i = 0; i < uidSize.getitem(0); i++)
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{
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var byteVal = uid.getitem(i);
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process.stdout.write(toHex(byteVal, 2) + " ");
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}
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process.stdout.write("\n");
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console.log("SAK: " + toHex(myNFCObj.getSAK(), 2));
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console.log("ATQA: " + toHex(myNFCObj.getATQA(), 4));
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console.log(" ");
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// write the URL
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writeUrl();
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clearInterval(myInterval);
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return;
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}
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else
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console.log("Waiting for a card...");
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}, 1000);
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102
examples/javascript/pn532.js
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102
examples/javascript/pn532.js
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@ -0,0 +1,102 @@
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
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/*jshint unused:true */
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/*
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* Author: Zion Orent <zorent@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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// Load PN532 module
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var pn532 = require('jsupm_pn532');
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// Instantiate an PN532 on I2C bus 0 (default) using gpio 3 for the
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// IRQ, and gpio 2 for the reset pin.
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var myNFCObj = new pn532.PN532(3, 2);
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if (!myNFCObj.init())
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console.log("init() failed");
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var vers = myNFCObj.getFirmwareVersion();
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if (vers)
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console.log("Got firmware version: " + toHex(vers, 8));
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else
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{
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console.log("Could not identify PN532");
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exit();
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}
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// Now scan and identify any cards that come in range (1 for now)
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// Retry forever
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myNFCObj.setPassiveActivationRetries(0xff);
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myNFCObj.SAMConfig();
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var uidSize = new pn532.uint8Array(0);
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var uid = new pn532.uint8Array(7);
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var myInterval = setInterval(function()
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{
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for (var x = 0; x < 7; x++)
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uid.setitem(x, 0);
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if (myNFCObj.readPassiveTargetID(pn532.PN532.BAUD_MIFARE_ISO14443A,
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uid, uidSize, 2000))
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{
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// found a card
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console.log("Found a card: UID len " + uidSize.getitem(0));
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process.stdout.write("UID: ");
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for (var i = 0; i < uidSize.getitem(0); i++)
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{
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var byteVal = uid.getitem(i);
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process.stdout.write(toHex(byteVal, 2) + " ");
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}
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process.stdout.write("\n");
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console.log("SAK: " + toHex(myNFCObj.getSAK(), 2));
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console.log("ATQA: " + toHex(myNFCObj.getATQA(), 4));
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console.log(" ");
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}
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else
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console.log("Waiting for a card...");
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}, 1000);
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function toHex(d, pad)
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{
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// pad should be between 1 and 8
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return ("00000000"+(Number(d).toString(16))).slice(-pad)
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}
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function exit()
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{
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clearInterval(myInterval);
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myNFCObj = null;
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pn532.cleanUp();
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pn532 = null;
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console.log("Exiting");
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process.exit(0);
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}
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// When exiting: clear interval, and print message
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process.on('SIGINT', function()
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{
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exit();
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});
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