main.cpp

00001 /* Copyright C2014 ARM, MIT License
00002  *
00003  * Author: Doug Anson (doug.anson@arm.com)
00004  *
00005  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00006  * and associated documentation files the "Software", to deal in the Software without restriction,
00007  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00008  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00009  * furnished to do so, subject to the following conditions:
00010  *
00011  * The above copyright notice and this permission notice shall be included in all copies or
00012  * substantial portions of the Software.
00013  *
00014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00015  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00016  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00017  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00018  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00019  */
00020 
00021 #include "mbed.h"
00022 
00023 // Blinky
00024 DigitalOut led(LED1);
00025 
00026 // Our sensor as an InterruptIn
00027 InterruptIn sensor(D0);
00028 
00029 // Grove Earbud Sensor include
00030 #include "GroveEarbudSensor.h"
00031 
00032 // callback for receiving heartrate values
00033 void heartrateCallback(float heartrate,void *data) {
00034     printf("Callback: heartrate = %.1f\r\n",heartrate);
00035 }
00036 
00037 int main()
00038 {   
00039     // announce
00040     printf("Grove Earbud Sensor Example v1.0.0\r\n");
00041     
00042     // allocate the earbud sensor
00043     printf("Allocating earbud sensor instance...\r\n");
00044     GroveEarbudSensor earbud(&sensor); 
00045     
00046     // register our callback function
00047     printf("registering callback...\r\n");
00048     earbud.registerCallback(heartrateCallback);
00049     
00050     // begin main loop
00051     printf("Beginning main loop...\r\n");
00052     while (true) {
00053         // blink... 
00054         led = !led; 
00055         wait(0.5);
00056         
00057         // we can also call directly 
00058         //printf("Direct: heartrate = %.1f\r\n",earbud.getHeartRate());
00059     }
00060 }