/* * Author: Jon Trulson * Copyright (c) 2016 Intel Corporation. * * This program and the accompanying materials are made available under the * terms of the The MIT License which is available at * https://opensource.org/licenses/MIT. * * SPDX-License-Identifier: MIT */ #include #include #include #include "lm35.h" #include "upm_utilities.h" bool shouldRun = true; void sig_handler(int signo) { if (signo == SIGINT) shouldRun = false; } int main() { signal(SIGINT, sig_handler); //! [Interesting] // Instantiate a LM35 on analog pin A0, with a default analog // reference voltage of 5.0 lm35_context sensor = lm35_init(0, 5.0); // Every half second, sample the sensor and output the temperature while (shouldRun) { float temp; if (lm35_get_temperature(sensor, &temp) != UPM_SUCCESS) { printf("lm35_get_temperature failed\n"); return 1; } printf("Temperature: %3.2f C\n", temp); upm_delay_ms(500); } //! [Interesting] printf("Exiting\n"); lm35_close(sensor); return 0; }