Pei-Ping Mo / Mbed 2 deprecated BLE_HeartRate_ppm

heart rate monitor

Dependencies:   BLE_API GroveEarbudSensor mbed nRF51822

Fork of BLE_HeartRate by Bluetooth Low Energy

main.cpp@71:c86b4658af70, 2015-08-29 (annotated)

Committer:
ppm2005
Date:
Sat Aug 29 17:49:14 2015 +0000
Revision:
71:c86b4658af70
Parent:
67:b2d2dee347c0
Child:
72:cc9b1d195d9f
commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ktownsend 0:87a7fc231fae 1 /* mbed Microcontroller Library
rgrover1 67:b2d2dee347c0 2 * Copyright (c) 2006-2015 ARM Limited
ktownsend 0:87a7fc231fae 3 *
ktownsend 0:87a7fc231fae 4 * Licensed under the Apache License, Version 2.0 (the "License");
ktownsend 0:87a7fc231fae 5 * you may not use this file except in compliance with the License.
ktownsend 0:87a7fc231fae 6 * You may obtain a copy of the License at
ktownsend 0:87a7fc231fae 7 *
ktownsend 0:87a7fc231fae 8 * http://www.apache.org/licenses/LICENSE-2.0
ktownsend 0:87a7fc231fae 9 *
ktownsend 0:87a7fc231fae 10 * Unless required by applicable law or agreed to in writing, software
ktownsend 0:87a7fc231fae 11 * distributed under the License is distributed on an "AS IS" BASIS,
ktownsend 0:87a7fc231fae 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ktownsend 0:87a7fc231fae 13 * See the License for the specific language governing permissions and
ktownsend 0:87a7fc231fae 14 * limitations under the License.
ktownsend 0:87a7fc231fae 15 */
ktownsend 0:87a7fc231fae 16
ktownsend 0:87a7fc231fae 17 #include "mbed.h"
rgrover1 67:b2d2dee347c0 18 #include "ble/BLE.h"
rgrover1 67:b2d2dee347c0 19 #include "ble/services/HeartRateService.h"
rgrover1 67:b2d2dee347c0 20 #include "ble/services/BatteryService.h"
rgrover1 67:b2d2dee347c0 21 #include "ble/services/DeviceInformationService.h"
ppm2005 71:c86b4658af70 22 // Grove Earbud Sensor include
ppm2005 71:c86b4658af70 23 #include "GroveEarbudSensor.h"
rgrover1 67:b2d2dee347c0 24 BLE ble;
rgrover1 47:430545f41113 25 DigitalOut led1(LED1);
ppm2005 71:c86b4658af70 26 // Our sensor as an InterruptIn
ppm2005 71:c86b4658af70 27 InterruptIn sensor(P0_0);
ktownsend 0:87a7fc231fae 28
mbedAustin 55:3a7d497a3e03 29 const static char DEVICE_NAME[] = "HRM1";
rgrover1 42:06ebef2e0e44 30 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE,
rgrover1 42:06ebef2e0e44 31 GattService::UUID_DEVICE_INFORMATION_SERVICE};
rgrover1 39:6390604f904c 32 static volatile bool triggerSensorPolling = false;
Rohit Grover 36:ea2a1b4f51c1 33
ppm2005 71:c86b4658af70 34 // callback for receiving heartrate values
ppm2005 71:c86b4658af70 35 void heartrateCallback(float heartrate,void *data) {
ppm2005 71:c86b4658af70 36 printf("Callback: heartrate = %.1f\r\n",heartrate);
ppm2005 71:c86b4658af70 37 }
rgrover1 41:9cef0129da5f 38 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
ktownsend 0:87a7fc231fae 39 {
rgrover1 66:c09ddf226b9c 40 ble.gap().startAdvertising(); // restart advertising
rgrover1 7:daab8ba5139e 41 }
Rohit Grover 3:24e2b056d229 42
Rohit Grover 11:1d9aafee4984 43 void periodicCallback(void)
Rohit Grover 11:1d9aafee4984 44 {
rgrover1 47:430545f41113 45 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
rgrover1 47:430545f41113 46
rgrover1 39:6390604f904c 47 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
rgrover1 39:6390604f904c 48 * heavy-weight sensor polling from the main thread. */
rgrover1 39:6390604f904c 49 triggerSensorPolling = true;
Rohit Grover 11:1d9aafee4984 50 }
Rohit Grover 11:1d9aafee4984 51
ktownsend 0:87a7fc231fae 52 int main(void)
ktownsend 0:87a7fc231fae 53 {
rgrover1 47:430545f41113 54 led1 = 1;
Rohit Grover 11:1d9aafee4984 55 Ticker ticker;
mbedAustin 55:3a7d497a3e03 56 ticker.attach(periodicCallback, 1); // blink LED every second
ktownsend 0:87a7fc231fae 57
Rohit Grover 15:7ba28817e31e 58 ble.init();
rgrover1 65:cb76569f74f6 59 ble.gap().onDisconnection(disconnectionCallback);
ktownsend 0:87a7fc231fae 60
rgrover1 45:98c5a34b07a4 61 /* Setup primary service. */
mbedAustin 55:3a7d497a3e03 62 uint8_t hrmCounter = 100; // init HRM to 100bps
ppm2005 71:c86b4658af70 63
rgrover1 45:98c5a34b07a4 64 HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
rgrover1 45:98c5a34b07a4 65
mbedAustin 55:3a7d497a3e03 66 /* Setup auxiliary service. */
rgrover1 45:98c5a34b07a4 67 DeviceInformationService deviceInfo(ble, "ARM", "Model1", "SN1", "hw-rev1", "fw-rev1", "soft-rev1");
rgrover1 45:98c5a34b07a4 68
rgrover1 45:98c5a34b07a4 69 /* Setup advertising. */
rgrover1 65:cb76569f74f6 70 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 65:cb76569f74f6 71 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
rgrover1 65:cb76569f74f6 72 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR);
rgrover1 65:cb76569f74f6 73 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
rgrover1 65:cb76569f74f6 74 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 67:b2d2dee347c0 75 ble.gap().setAdvertisingInterval(1000); /* 1000ms */
rgrover1 65:cb76569f74f6 76 ble.gap().startAdvertising();
Rohit Grover 3:24e2b056d229 77
mbedAustin 55:3a7d497a3e03 78 // infinite loop
mbedAustin 55:3a7d497a3e03 79 while (1) {
mbedAustin 55:3a7d497a3e03 80 // check for trigger from periodicCallback()
rgrover1 50:477004d54431 81 if (triggerSensorPolling && ble.getGapState().connected) {
Rohit Grover 36:ea2a1b4f51c1 82 triggerSensorPolling = false;
Rohit Grover 36:ea2a1b4f51c1 83
mbedAustin 55:3a7d497a3e03 84 // Do blocking calls or whatever is necessary for sensor polling.
rgrover1 67:b2d2dee347c0 85 // In our case, we simply update the HRM measurement.
ppm2005 71:c86b4658af70 86 // hrmCounter++;
rgrover1 67:b2d2dee347c0 87
mbedAustin 55:3a7d497a3e03 88 // 100 <= HRM bps <=175
ppm2005 71:c86b4658af70 89 /*if (hrmCounter == 175) {
Rohit Grover 36:ea2a1b4f51c1 90 hrmCounter = 100;
ppm2005 71:c86b4658af70 91 }*/
ppm2005 71:c86b4658af70 92 // announce
ppm2005 71:c86b4658af70 93 printf("Grove Earbud Sensor - Montoring Heart Rate\r\n");
ppm2005 71:c86b4658af70 94
ppm2005 71:c86b4658af70 95 // allocate the earbud sensor
ppm2005 71:c86b4658af70 96 printf("Allocating earbud sensor instance...\r\n");
ppm2005 71:c86b4658af70 97 GroveEarbudSensor earbud(&sensor);
ppm2005 71:c86b4658af70 98
ppm2005 71:c86b4658af70 99 // register our callback function
ppm2005 71:c86b4658af70 100 printf("registering callback...\r\n");
ppm2005 71:c86b4658af70 101 earbud.registerCallback(heartrateCallback);
ppm2005 71:c86b4658af70 102
ppm2005 71:c86b4658af70 103 /* begin main loop
ppm2005 71:c86b4658af70 104 printf("Beginning main loop...\r\n");
ppm2005 71:c86b4658af70 105 while (true) {
ppm2005 71:c86b4658af70 106 // blink...
ppm2005 71:c86b4658af70 107 led1 = !led1;
ppm2005 71:c86b4658af70 108 wait(0.5);*/
ppm2005 71:c86b4658af70 109
ppm2005 71:c86b4658af70 110 // we can also call directly
ppm2005 71:c86b4658af70 111 printf("Direct: heartrate = %.1f\r\n", earbud.getHeartRate());
ppm2005 71:c86b4658af70 112 hrmCounter=earbud.getHeartRate();
ppm2005 71:c86b4658af70 113
rgrover1 67:b2d2dee347c0 114
mbedAustin 55:3a7d497a3e03 115 // update bps
ppm2005 71:c86b4658af70 116 //hrService.updateHeartRate(hrmCounter);
rgrover1 39:6390604f904c 117 hrService.updateHeartRate(hrmCounter);
Rohit Grover 36:ea2a1b4f51c1 118 } else {
mbedAustin 55:3a7d497a3e03 119 ble.waitForEvent(); // low power wait for event
Rohit Grover 36:ea2a1b4f51c1 120 }
ktownsend 0:87a7fc231fae 121 }
ktownsend 0:87a7fc231fae 122 }