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62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2016 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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#include <unistd.h>
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#include <signal.h>
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#include "urm37.h"
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#include "upm_utilities.h"
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bool shouldRun = true;
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void sig_handler(int signo)
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{
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if (signo == SIGINT)
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shouldRun = false;
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}
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int main()
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{
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signal(SIGINT, sig_handler);
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//! [Interesting]
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// Instantiate a URM37 sensor on analog pin A0, reset pin on D2,
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// trigger pin on D3 with an analog reference voltage of 5.0
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urm37_context sensor = urm37_init(0, 2, 3, 5.0, 0, true);
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if (!sensor)
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{
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printf("urm37_init() failed.\n");
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return(1);
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}
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// Every half a second, sample the URM37 and output the measured
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// distance in cm.
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while (shouldRun)
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{
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float distance;
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urm37_get_distance(sensor, &distance, 0);
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printf("Detected distance (cm): %f\n", distance);
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upm_delay_ms(500);
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}
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//! [Interesting]
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printf("Exiting\n");
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urm37_close(sensor);
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return 0;
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}
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