/* * Author: Jon Trulson * Copyright (c) 2014 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 "linefinder.hpp" #include "upm_utilities.h" using namespace std; int shouldRun = true; void sig_handler(int signo) { if (signo == SIGINT) shouldRun = false; } int main() { signal(SIGINT, sig_handler); //! [Interesting] // Instantiate a Line Finder sensor on digital pin D2 upm::LineFinder finder(2); // check every second for the presence of white detection while (shouldRun) { bool val = finder.whiteDetected(); if (val) cout << "White detected." << endl; else cout << "Black detected." << endl; upm_delay(1); } //! [Interesting] cout << "Exiting..." << endl; return 0; }