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64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
/*
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* Author: Noel Eck <noel.eck@intel.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 "o2.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 o2 sensor on analog pin A0
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o2_context sensor = o2_init(0);
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if (!sensor)
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{
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printf("o2_init() failed.\n");
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return -1;
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}
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// Every half a second, sample the sensor output
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while (shouldRun)
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{
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float raw_volts = 0.0;
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float o2_percent = 0.0;
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o2_get_raw_volts(sensor, &raw_volts);
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o2_get_value(sensor, &o2_percent);
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printf("O2 raw volts: %0.03f v, o2: %0.03f %%\n",
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raw_volts, o2_percent);
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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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o2_close(sensor);
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return 0;
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}
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