/* * Author: Jon Trulson * Copyright (c) 2016 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 #include #include #include #include bool shouldRun = true; // analog voltage, usually 3.3 or 5.0 #define OTP538U_AREF 5.0 void sig_handler(int signo) { if (signo == SIGINT) shouldRun = false; } int main() { signal(SIGINT, sig_handler); //! [Interesting] // Instantiate a OTP538U on analog pins A0 and A1 // A0 is used for the Ambient Temperature and A1 is used for the // Object temperature. otp538u_context temps = otp538u_init(0, 1, OTP538U_AREF); // enable debugging if you would like // otp538u_set_debug(temps, true); // Output ambient and object temperatures while (shouldRun) { float ambient = 0, object = 0; if (otp538u_get_ambient_temperature(temps, &ambient)) printf("otp538u_get_ambient_temperature() failed\n"); else if (otp538u_get_object_temperature(temps, &object)) printf("otp538u_get_object_temperature() failed\n"); else printf("Ambient temp: %f C, Object temp: %f C\n", ambient, object); printf("\n"); upm_delay(1); } printf("Exiting\n"); otp538u_close(temps); //! [Interesting] return 0; }