| /* |
| * Author: Jon Trulson <jtrulson@ics.com> |
| * Copyright (c) 2014 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. |
| */ |
| #pragma once |
| |
| #include <string> |
| #include <mraa/gpio.h> |
| |
| namespace upm { |
| /** |
| * @brief Grove Line Finder Sensor library |
| * @defgroup grovelinefinder libupm-grovelinefinder |
| * @ingroup seeed gpio color robok |
| */ |
| |
| /** |
| * @library grovelinefinder |
| * @sensor grovelinefinder |
| * @comname Grove Line Finder |
| * @type color |
| * @man seeed |
| * @con gpio |
| * @kit robok |
| * |
| * @brief API for the Grove Line Finder Sensor |
| * |
| * UPM module for the Grove Line Finder sensor. It outputs a |
| * digital signal indicating whether it is detecting black on a |
| * white background, or white on a black background. |
| * |
| * @image html grovelinefinder.jpg |
| * @snippet grovelinefinder.cxx Interesting |
| */ |
| class GroveLineFinder { |
| public: |
| /** |
| * Grove Line Finder digital sensor constructor |
| * |
| * @param pin Digital pin to use |
| */ |
| GroveLineFinder(int pin); |
| /** |
| * GroveLineFinder destructor |
| */ |
| ~GroveLineFinder(); |
| /** |
| * Determines whether white has been detected |
| * |
| * @return True if white is detected |
| */ |
| bool whiteDetected(); |
| /** |
| * Determines whether black has been detected |
| * |
| * @return True if black is detected |
| */ |
| bool blackDetected(); |
| |
| private: |
| mraa_gpio_context m_gpio; |
| }; |
| } |
| |
| |