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83 lines
2.2 KiB
JavaScript
83 lines
2.2 KiB
JavaScript
/*
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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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* This program and the accompanying materials are made available under the
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* terms of the The MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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*/
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var fingerprint_lib = require('jsupm_zfm20');
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// Instantiate a ZFM20 Fingerprint reader on UART 0
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var myFingerprintSensor = new fingerprint_lib.ZFM20(0);
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// make sure port is initialized properly. 57600 baud is the default.
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if (!myFingerprintSensor.setupTty(fingerprint_lib.int_B57600))
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{
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console.log("Failed to setup tty port parameters");
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process.exit(1);
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}
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// how many valid stored templates (fingerprints) do we have?
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console.log("Total stored templates: " + myFingerprintSensor.getNumTemplates());
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console.log(" ");
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// now spin waiting for a fingerprint to successfully image
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console.log("Waiting for finger print...");
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while (myFingerprintSensor.generateImage() == fingerprint_lib.ZFM20.ERR_NO_FINGER)
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;
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// in theory, we have an image
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console.log("Image captured, converting...");
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var rv = myFingerprintSensor.image2Tz(1);
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if (rv != fingerprint_lib.ZFM20.ERR_OK)
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{
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console.log("Image conversion failed with error code " + rv);
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process.exit(1);
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}
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console.log("Image conversion succeeded.");
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console.log("Searching database...");
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var myid = new fingerprint_lib.uint16Array(0);
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myid.setitem(0, 0);
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var myscore = new fingerprint_lib.uint16Array(0);
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myscore.setitem(0, 0);
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// we search for a print matching slot 1, where we stored our last
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// converted fingerprint
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rv = myFingerprintSensor.search(1, myid, myscore)
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if (rv != fingerprint_lib.ZFM20.ERR_OK)
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{
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if (rv == fingerprint_lib.ZFM20.ERR_FP_NOTFOUND)
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{
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console.log("Finger Print not found");
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process.exit(0);
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}
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else
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{
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console.log("Search failed with error code " + rv);
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process.exit(1);
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}
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}
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console.log("Fingerprint found!");
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console.log("ID: " + myid.getitem(0) + ", Score: " + myscore.getitem(0));
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// Print message when exiting
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function exit()
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{
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myFingerprintSensor = null;
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fingerprint_lib.cleanUp();
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fingerprint_lib = null;
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console.log("Exiting");
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process.exit(0);
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}
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process.on('SIGINT', exit);
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process.on('exit', exit);
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