/* * Author: Jon Trulson * Copyright (c) 2017 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 "speaker.h" int main () { //! [Interesting] // Instantiate a Speaker (PWM) on digital pin D3 speaker_context speaker = speaker_init_pwm(26); if (!speaker) { printf("speaker_init() failed\n"); return 1; } // emit a series of frequencies for 500ms each speaker_emit(speaker, 50, 500); speaker_emit(speaker, 75, 500); speaker_emit(speaker, 125, 500); speaker_emit(speaker, 250, 500); speaker_emit(speaker, 500, 500); speaker_emit(speaker, 1000, 500); speaker_emit(speaker, 2000, 500); speaker_emit(speaker, 3000, 500); speaker_emit(speaker, 5000, 500); speaker_emit(speaker, 10000, 500); printf("Exiting\n"); speaker_close(speaker); //! [Interesting] return 0; }