upm/examples/c++/zfm20.cxx

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/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <iostream>
#include "zfm20.hpp"
using namespace std;
using namespace upm;
int
main(int argc, char** argv)
{
//! [Interesting]
// Instantiate a ZFM20 Fingerprint reader on UART 0
upm::ZFM20 fp(0);
// make sure port is initialized properly. 57600 baud is the default.
if (!fp.setupTty(57600)) {
cerr << "Failed to setup tty port parameters" << endl;
return 1;
}
// first, set the default password and address
fp.setPassword(ZFM20_DEFAULT_PASSWORD);
fp.setAddress(ZFM20_DEFAULT_ADDRESS);
// now verify the password. If this fails, any other commands
// will be ignored, so we just bail.
if (fp.verifyPassword()) {
cout << "Password verified." << endl;
} else {
cerr << "Password verification failed." << endl;
return 1;
}
// how many valid stored templates (fingerprints) do we have?
cout << "Total stored templates: " << fp.getNumTemplates() << endl;
cout << endl;
// now spin waiting for a fingerprint to successfully image
cout << "Waiting for finger print..." << endl;
while (fp.generateImage() == ZFM20::ERR_NO_FINGER)
;
// in theory, we have an image
cout << "Image captured, converting..." << endl;
uint8_t rv;
if ((rv = fp.image2Tz(1)) != ZFM20::ERR_OK) {
cerr << "Image conversion failed with error code " << int(rv) << endl;
return 1;
}
cout << "Image conversion succeeded." << endl;
cout << "Searching database..." << endl;
uint16_t id = 0;
uint16_t score = 0;
// we search for a print matching slot 1, where we shored our last
// converted fingerprint
if ((rv = fp.search(1, id, score)) != ZFM20::ERR_OK) {
if (rv == ZFM20::ERR_FP_NOTFOUND) {
cout << "Finger Print not found" << endl;
return 0;
} else {
cerr << "Search failed with error code " << int(rv) << endl;
return 1;
}
}
cout << "Fingerprint found!" << endl;
cout << "ID: " << int(id) << ", Score: " << int(score) << endl;
//! [Interesting]
return 0;
}