/* * Author: Noel Eck * 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 "slide.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 slide sensor on analog pin A0 slide_context sensor = slide_init(0); if (!sensor) { printf("slide_init() failed.\n"); return -1; } // Set the aref, scale, and offset slide_set_aref(sensor, 5.0); slide_set_scale(sensor, 1.0); slide_set_offset(sensor, -.1); printf("aRef: %0.03f scale: %0.03f offset: %0.03f\n\n", slide_get_aref(sensor), slide_get_scale(sensor), slide_get_offset(sensor)); // Every half a second, sample the sensor output while (shouldRun) { float normalized = 0.0; float raw_volts = 0.0; float volts = 0.0; slide_get_normalized(sensor, &normalized); slide_get_raw_volts(sensor, &raw_volts); slide_get_volts(sensor, &volts); printf("Normalized output: %0.03f, raw slide sensor output: %0.03f v " "adjusted output: %0.03f v\n", normalized, raw_volts, volts); upm_delay_ms(500); } //! [Interesting] printf("Exiting\n"); slide_close(sensor); return 0; }