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69 lines
1.5 KiB
C
69 lines
1.5 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 <stdio.h>
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#include <signal.h>
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#include <upm_utilities.h>
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#include <otp538u.h>
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bool shouldRun = true;
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// analog voltage, usually 3.3 or 5.0
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#define OTP538U_AREF 5.0
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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 OTP538U on analog pins A0 and A1
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// A0 is used for the Ambient Temperature and A1 is used for the
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// Object temperature.
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otp538u_context temps = otp538u_init(0, 1, OTP538U_AREF);
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// enable debugging if you would like
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// otp538u_set_debug(temps, true);
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// Output ambient and object temperatures
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while (shouldRun)
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{
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float ambient = 0, object = 0;
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if (otp538u_get_ambient_temperature(temps, &ambient))
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printf("otp538u_get_ambient_temperature() failed\n");
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else if (otp538u_get_object_temperature(temps, &object))
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printf("otp538u_get_object_temperature() failed\n");
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else
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printf("Ambient temp: %f C, Object temp: %f C\n",
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ambient, object);
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printf("\n");
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upm_delay(1);
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}
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printf("Exiting\n");
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otp538u_close(temps);
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//! [Interesting]
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return 0;
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}
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