Ciaran Doyle / Mbed OS BlueCrutch

Combines a working system to save force, acceleration and gyro data to an SD card in a MAX32630 with BLE_Heartrate taken from the mbed site.

Dependencies:   USBMSD_BD BMI160 HX711 max32630fthr USBDevice

source/main.cpp@73:633b44bce5fc, 2019-01-14 (annotated)

Committer:
mbed_official
Date:
Mon Jan 14 10:45:44 2019 +0000
Revision:
73:633b44bce5fc
Parent:
43:fb2855f7754b
Child:
80:caccea4da07b
Merge pull request #208 from ARMmbed/mbed-os-5.11.0-oob



Mbed OS 5.11.0

.

Commit copied from https://github.com/ARMmbed/mbed-os-example-ble

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 1:72c60abef7e7 1 /* mbed Microcontroller Library
mbed_official 1:72c60abef7e7 2 * Copyright (c) 2006-2015 ARM Limited
mbed_official 1:72c60abef7e7 3 *
mbed_official 1:72c60abef7e7 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 1:72c60abef7e7 5 * you may not use this file except in compliance with the License.
mbed_official 1:72c60abef7e7 6 * You may obtain a copy of the License at
mbed_official 1:72c60abef7e7 7 *
mbed_official 1:72c60abef7e7 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 1:72c60abef7e7 9 *
mbed_official 1:72c60abef7e7 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 1:72c60abef7e7 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 1:72c60abef7e7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 1:72c60abef7e7 13 * See the License for the specific language governing permissions and
mbed_official 1:72c60abef7e7 14 * limitations under the License.
mbed_official 1:72c60abef7e7 15 */
mbed_official 1:72c60abef7e7 16
mbed_official 10:ac3615194d04 17 #include <events/mbed_events.h>
mbed_official 1:72c60abef7e7 18 #include <mbed.h>
mbed_official 1:72c60abef7e7 19 #include "ble/BLE.h"
mbed_official 73:633b44bce5fc 20 #include "ble/gap/Gap.h"
mbed_official 1:72c60abef7e7 21 #include "ble/services/HeartRateService.h"
mbed_official 73:633b44bce5fc 22 #include "pretty_printer.h"
mbed_official 1:72c60abef7e7 23
mbed_official 73:633b44bce5fc 24 const static char DEVICE_NAME[] = "Heartrate";
mbed_official 73:633b44bce5fc 25
mbed_official 73:633b44bce5fc 26 static events::EventQueue event_queue(/* event count */ 16 * EVENTS_EVENT_SIZE);
mbed_official 1:72c60abef7e7 27
mbed_official 73:633b44bce5fc 28 class HeartrateDemo : ble::Gap::EventHandler {
mbed_official 73:633b44bce5fc 29 public:
mbed_official 73:633b44bce5fc 30 HeartrateDemo(BLE &ble, events::EventQueue &event_queue) :
mbed_official 73:633b44bce5fc 31 _ble(ble),
mbed_official 73:633b44bce5fc 32 _event_queue(event_queue),
mbed_official 73:633b44bce5fc 33 _led1(LED1, 1),
mbed_official 73:633b44bce5fc 34 _connected(false),
mbed_official 73:633b44bce5fc 35 _hr_uuid(GattService::UUID_HEART_RATE_SERVICE),
mbed_official 73:633b44bce5fc 36 _hr_counter(100),
mbed_official 73:633b44bce5fc 37 _hr_service(ble, _hr_counter, HeartRateService::LOCATION_FINGER),
mbed_official 73:633b44bce5fc 38 _adv_data_builder(_adv_buffer) { }
mbed_official 1:72c60abef7e7 39
mbed_official 73:633b44bce5fc 40 void start() {
mbed_official 73:633b44bce5fc 41 _ble.gap().setEventHandler(this);
mbed_official 73:633b44bce5fc 42
mbed_official 73:633b44bce5fc 43 _ble.init(this, &HeartrateDemo::on_init_complete);
mbed_official 73:633b44bce5fc 44
mbed_official 73:633b44bce5fc 45 _event_queue.call_every(500, this, &HeartrateDemo::blink);
mbed_official 73:633b44bce5fc 46 _event_queue.call_every(1000, this, &HeartrateDemo::update_sensor_value);
mbed_official 73:633b44bce5fc 47
mbed_official 73:633b44bce5fc 48 _event_queue.dispatch_forever();
mbed_official 73:633b44bce5fc 49 }
mbed_official 1:72c60abef7e7 50
mbed_official 73:633b44bce5fc 51 private:
mbed_official 73:633b44bce5fc 52 /** Callback triggered when the ble initialization process has finished */
mbed_official 73:633b44bce5fc 53 void on_init_complete(BLE::InitializationCompleteCallbackContext *params) {
mbed_official 73:633b44bce5fc 54 if (params->error != BLE_ERROR_NONE) {
mbed_official 73:633b44bce5fc 55 printf("Ble initialization failed.");
mbed_official 73:633b44bce5fc 56 return;
mbed_official 73:633b44bce5fc 57 }
mbed_official 1:72c60abef7e7 58
mbed_official 73:633b44bce5fc 59 print_mac_address();
mbed_official 73:633b44bce5fc 60
mbed_official 73:633b44bce5fc 61 start_advertising();
mbed_official 1:72c60abef7e7 62 }
mbed_official 1:72c60abef7e7 63
mbed_official 73:633b44bce5fc 64 void start_advertising() {
mbed_official 73:633b44bce5fc 65 /* Create advertising parameters and payload */
mbed_official 1:72c60abef7e7 66
mbed_official 73:633b44bce5fc 67 ble::AdvertisingParameters adv_parameters(
mbed_official 73:633b44bce5fc 68 ble::advertising_type_t::CONNECTABLE_UNDIRECTED,
mbed_official 73:633b44bce5fc 69 ble::adv_interval_t(ble::millisecond_t(1000))
mbed_official 73:633b44bce5fc 70 );
mbed_official 1:72c60abef7e7 71
mbed_official 73:633b44bce5fc 72 _adv_data_builder.setFlags();
mbed_official 73:633b44bce5fc 73 _adv_data_builder.setAppearance(ble::adv_data_appearance_t::GENERIC_HEART_RATE_SENSOR);
mbed_official 73:633b44bce5fc 74 _adv_data_builder.setLocalServiceList(mbed::make_Span(&_hr_uuid, 1));
mbed_official 73:633b44bce5fc 75 _adv_data_builder.setName(DEVICE_NAME);
mbed_official 1:72c60abef7e7 76
mbed_official 73:633b44bce5fc 77 /* Setup advertising */
mbed_official 73:633b44bce5fc 78
mbed_official 73:633b44bce5fc 79 ble_error_t error = _ble.gap().setAdvertisingParameters(
mbed_official 73:633b44bce5fc 80 ble::LEGACY_ADVERTISING_HANDLE,
mbed_official 73:633b44bce5fc 81 adv_parameters
mbed_official 73:633b44bce5fc 82 );
mbed_official 1:72c60abef7e7 83
mbed_official 73:633b44bce5fc 84 if (error) {
mbed_official 73:633b44bce5fc 85 printf("_ble.gap().setAdvertisingParameters() failed\r\n");
mbed_official 73:633b44bce5fc 86 return;
mbed_official 73:633b44bce5fc 87 }
mbed_official 73:633b44bce5fc 88
mbed_official 73:633b44bce5fc 89 error = _ble.gap().setAdvertisingPayload(
mbed_official 73:633b44bce5fc 90 ble::LEGACY_ADVERTISING_HANDLE,
mbed_official 73:633b44bce5fc 91 _adv_data_builder.getAdvertisingData()
mbed_official 73:633b44bce5fc 92 );
mbed_official 43:fb2855f7754b 93
mbed_official 73:633b44bce5fc 94 if (error) {
mbed_official 73:633b44bce5fc 95 printf("_ble.gap().setAdvertisingPayload() failed\r\n");
mbed_official 73:633b44bce5fc 96 return;
mbed_official 73:633b44bce5fc 97 }
mbed_official 73:633b44bce5fc 98
mbed_official 73:633b44bce5fc 99 /* Start advertising */
mbed_official 1:72c60abef7e7 100
mbed_official 73:633b44bce5fc 101 error = _ble.gap().startAdvertising(ble::LEGACY_ADVERTISING_HANDLE);
mbed_official 73:633b44bce5fc 102
mbed_official 73:633b44bce5fc 103 if (error) {
mbed_official 73:633b44bce5fc 104 printf("_ble.gap().startAdvertising() failed\r\n");
mbed_official 73:633b44bce5fc 105 return;
mbed_official 73:633b44bce5fc 106 }
mbed_official 1:72c60abef7e7 107 }
mbed_official 1:72c60abef7e7 108
mbed_official 73:633b44bce5fc 109 void update_sensor_value() {
mbed_official 73:633b44bce5fc 110 if (_connected) {
mbed_official 73:633b44bce5fc 111 // Do blocking calls or whatever is necessary for sensor polling.
mbed_official 73:633b44bce5fc 112 // In our case, we simply update the HRM measurement.
mbed_official 73:633b44bce5fc 113 _hr_counter++;
mbed_official 73:633b44bce5fc 114
mbed_official 73:633b44bce5fc 115 // 100 <= HRM bps <=175
mbed_official 73:633b44bce5fc 116 if (_hr_counter == 175) {
mbed_official 73:633b44bce5fc 117 _hr_counter = 100;
mbed_official 73:633b44bce5fc 118 }
mbed_official 73:633b44bce5fc 119
mbed_official 73:633b44bce5fc 120 _hr_service.updateHeartRate(_hr_counter);
mbed_official 73:633b44bce5fc 121 }
mbed_official 73:633b44bce5fc 122 }
mbed_official 73:633b44bce5fc 123
mbed_official 73:633b44bce5fc 124 void blink(void) {
mbed_official 73:633b44bce5fc 125 _led1 = !_led1;
mbed_official 1:72c60abef7e7 126 }
mbed_official 1:72c60abef7e7 127
mbed_official 73:633b44bce5fc 128 private:
mbed_official 73:633b44bce5fc 129 /* Event handler */
mbed_official 1:72c60abef7e7 130
mbed_official 73:633b44bce5fc 131 void onDisconnectionComplete(const ble::DisconnectionCompleteEvent&) {
mbed_official 73:633b44bce5fc 132 _ble.gap().startAdvertising(ble::LEGACY_ADVERTISING_HANDLE);
mbed_official 73:633b44bce5fc 133 _connected = false;
mbed_official 73:633b44bce5fc 134 }
mbed_official 73:633b44bce5fc 135
mbed_official 73:633b44bce5fc 136 virtual void onConnectionComplete(const ble::ConnectionCompleteEvent &event) {
mbed_official 73:633b44bce5fc 137 if (event.getStatus() == BLE_ERROR_NONE) {
mbed_official 73:633b44bce5fc 138 _connected = true;
mbed_official 73:633b44bce5fc 139 }
mbed_official 73:633b44bce5fc 140 }
mbed_official 1:72c60abef7e7 141
mbed_official 73:633b44bce5fc 142 private:
mbed_official 73:633b44bce5fc 143 BLE &_ble;
mbed_official 73:633b44bce5fc 144 events::EventQueue &_event_queue;
mbed_official 73:633b44bce5fc 145 DigitalOut _led1;
mbed_official 73:633b44bce5fc 146
mbed_official 73:633b44bce5fc 147 bool _connected;
mbed_official 73:633b44bce5fc 148
mbed_official 73:633b44bce5fc 149 UUID _hr_uuid;
mbed_official 43:fb2855f7754b 150
mbed_official 73:633b44bce5fc 151 uint8_t _hr_counter;
mbed_official 73:633b44bce5fc 152 HeartRateService _hr_service;
mbed_official 1:72c60abef7e7 153
mbed_official 73:633b44bce5fc 154 uint8_t _adv_buffer[ble::LEGACY_ADVERTISING_MAX_SIZE];
mbed_official 73:633b44bce5fc 155 ble::AdvertisingDataBuilder _adv_data_builder;
mbed_official 73:633b44bce5fc 156 };
mbed_official 73:633b44bce5fc 157
mbed_official 73:633b44bce5fc 158 /** Schedule processing of events from the BLE middleware in the event queue. */
mbed_official 73:633b44bce5fc 159 void schedule_ble_events(BLE::OnEventsToProcessCallbackContext *context) {
mbed_official 73:633b44bce5fc 160 event_queue.call(Callback<void()>(&context->ble, &BLE::processEvents));
mbed_official 1:72c60abef7e7 161 }
mbed_official 1:72c60abef7e7 162
mbed_official 1:72c60abef7e7 163 int main()
mbed_official 1:72c60abef7e7 164 {
mbed_official 73:633b44bce5fc 165 BLE &ble = BLE::Instance();
mbed_official 73:633b44bce5fc 166 ble.onEventsToProcess(schedule_ble_events);
mbed_official 1:72c60abef7e7 167
mbed_official 73:633b44bce5fc 168 HeartrateDemo demo(ble, event_queue);
mbed_official 73:633b44bce5fc 169 demo.start();
mbed_official 1:72c60abef7e7 170
mbed_official 1:72c60abef7e7 171 return 0;
mbed_official 1:72c60abef7e7 172 }
mbed_official 73:633b44bce5fc 173