Jie Li / Mbed 2 deprecated BLE_HeartRate

Heart Rate Monitor example for the BLE API using nRF51822 native mode drivers

Dependencies:   BLE_API mbed nRF51822 X_NUCLEO_IDB0XA1

Fork of BLE_HeartRate by Bluetooth Low Energy

main.cpp@46:ee7c55907f36, 2014-09-30 (annotated)

Committer:
rgrover1
Date:
Tue Sep 30 00:07:32 2014 +0000
Revision:
46:ee7c55907f36
Parent:
45:98c5a34b07a4
Child:
47:430545f41113
DFUService is now added automatically for DFU platforms.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ktownsend 0:87a7fc231fae 1 /* mbed Microcontroller Library
ktownsend 0:87a7fc231fae 2 * Copyright (c) 2006-2013 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"
Rohit Grover 10:2436164b692e 18 #include "BLEDevice.h"
rgrover1 39:6390604f904c 19 #include "HeartRateService.h"
rgrover1 42:06ebef2e0e44 20 #include "BatteryService.h"
rgrover1 42:06ebef2e0e44 21 #include "DeviceInformationService.h"
ktownsend 0:87a7fc231fae 22
Rohit Grover 10:2436164b692e 23 BLEDevice ble;
ktownsend 0:87a7fc231fae 24
rgrover1 45:98c5a34b07a4 25 const static char DEVICE_NAME[] = "Nordic_HRM";
rgrover1 42:06ebef2e0e44 26 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE,
rgrover1 42:06ebef2e0e44 27 GattService::UUID_BATTERY_SERVICE,
rgrover1 42:06ebef2e0e44 28 GattService::UUID_DEVICE_INFORMATION_SERVICE};
rgrover1 39:6390604f904c 29 static volatile bool triggerSensorPolling = false;
Rohit Grover 36:ea2a1b4f51c1 30
rgrover1 41:9cef0129da5f 31 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
ktownsend 0:87a7fc231fae 32 {
rgrover1 46:ee7c55907f36 33 ble.startAdvertising(); // restart advertising
rgrover1 7:daab8ba5139e 34 }
Rohit Grover 3:24e2b056d229 35
Rohit Grover 11:1d9aafee4984 36 void periodicCallback(void)
Rohit Grover 11:1d9aafee4984 37 {
rgrover1 39:6390604f904c 38 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
rgrover1 39:6390604f904c 39 * heavy-weight sensor polling from the main thread. */
rgrover1 39:6390604f904c 40 triggerSensorPolling = true;
Rohit Grover 11:1d9aafee4984 41 }
Rohit Grover 11:1d9aafee4984 42
ktownsend 0:87a7fc231fae 43 int main(void)
ktownsend 0:87a7fc231fae 44 {
Rohit Grover 11:1d9aafee4984 45 Ticker ticker;
Rohit Grover 11:1d9aafee4984 46 ticker.attach(periodicCallback, 1);
ktownsend 0:87a7fc231fae 47
Rohit Grover 15:7ba28817e31e 48 ble.init();
rgrover1 7:daab8ba5139e 49 ble.onDisconnection(disconnectionCallback);
ktownsend 0:87a7fc231fae 50
rgrover1 45:98c5a34b07a4 51 /* Setup primary service. */
rgrover1 45:98c5a34b07a4 52 uint8_t hrmCounter = 100;
rgrover1 45:98c5a34b07a4 53 HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
rgrover1 45:98c5a34b07a4 54
rgrover1 45:98c5a34b07a4 55 /* Setup auxiliary services. */
rgrover1 45:98c5a34b07a4 56 BatteryService battery(ble);
rgrover1 45:98c5a34b07a4 57 DeviceInformationService deviceInfo(ble, "ARM", "Model1", "SN1", "hw-rev1", "fw-rev1", "soft-rev1");
rgrover1 45:98c5a34b07a4 58
rgrover1 45:98c5a34b07a4 59 /* Setup advertising. */
Rohit Grover 29:76d865c718a6 60 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 40:e73130c6f2bb 61 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
rgrover1 42:06ebef2e0e44 62 ble.accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR);
Rohit Grover 29:76d865c718a6 63 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
rgrover1 7:daab8ba5139e 64 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 40:e73130c6f2bb 65 ble.setAdvertisingInterval(1600); /* 1000ms; in multiples of 0.625ms. */
rgrover1 7:daab8ba5139e 66 ble.startAdvertising();
Rohit Grover 3:24e2b056d229 67
Rohit Grover 11:1d9aafee4984 68 while (true) {
Rohit Grover 36:ea2a1b4f51c1 69 if (triggerSensorPolling) {
Rohit Grover 36:ea2a1b4f51c1 70 triggerSensorPolling = false;
Rohit Grover 36:ea2a1b4f51c1 71
Rohit Grover 36:ea2a1b4f51c1 72 /* Do blocking calls or whatever is necessary for sensor polling. */
Rohit Grover 36:ea2a1b4f51c1 73 /* In our case, we simply update the dummy HRM measurement. */
Rohit Grover 36:ea2a1b4f51c1 74 hrmCounter++;
Rohit Grover 36:ea2a1b4f51c1 75 if (hrmCounter == 175) {
Rohit Grover 36:ea2a1b4f51c1 76 hrmCounter = 100;
Rohit Grover 36:ea2a1b4f51c1 77 }
Rohit Grover 36:ea2a1b4f51c1 78
rgrover1 39:6390604f904c 79 hrService.updateHeartRate(hrmCounter);
Rohit Grover 36:ea2a1b4f51c1 80 } else {
Rohit Grover 36:ea2a1b4f51c1 81 ble.waitForEvent();
Rohit Grover 36:ea2a1b4f51c1 82 }
ktownsend 0:87a7fc231fae 83 }
ktownsend 0:87a7fc231fae 84 }