Technicus Spiriticus / Mbed 2 deprecated BLE_IoT_on_Wheels_Design_Challenge

We are making a bluetooth application for a vehicle.

Dependencies:   BLE_API X_NUCLEO_IDB0XA1 mbed

Fork of BLE_HeartRate_IDB0XA1 by ST

main.cpp@23:a31b178e2263, 2017-06-26 (annotated)

Committer:
bobbaddeley
Date:
Mon Jun 26 21:23:48 2017 +0000
Revision:
23:a31b178e2263
Parent:
22:985657fc70c8
Child:
24:d352571b1c1f
Adding the Battery Service and the beginnings (doesn't compile yet) of the Bike Service, which is a modification of the Heart Rate Service.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 0:eb7f02ad28a7 1 /* mbed Microcontroller Library
screamer 0:eb7f02ad28a7 2 * Copyright (c) 2006-2015 ARM Limited
screamer 0:eb7f02ad28a7 3 *
screamer 0:eb7f02ad28a7 4 * Licensed under the Apache License, Version 2.0 (the "License");
screamer 0:eb7f02ad28a7 5 * you may not use this file except in compliance with the License.
screamer 0:eb7f02ad28a7 6 * You may obtain a copy of the License at
screamer 0:eb7f02ad28a7 7 *
screamer 0:eb7f02ad28a7 8 * http://www.apache.org/licenses/LICENSE-2.0
screamer 0:eb7f02ad28a7 9 *
screamer 0:eb7f02ad28a7 10 * Unless required by applicable law or agreed to in writing, software
screamer 0:eb7f02ad28a7 11 * distributed under the License is distributed on an "AS IS" BASIS,
screamer 0:eb7f02ad28a7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
screamer 0:eb7f02ad28a7 13 * See the License for the specific language governing permissions and
screamer 0:eb7f02ad28a7 14 * limitations under the License.
screamer 0:eb7f02ad28a7 15 */
screamer 0:eb7f02ad28a7 16
screamer 0:eb7f02ad28a7 17 #include "mbed.h"
screamer 0:eb7f02ad28a7 18 #include "ble/BLE.h"
bobbaddeley 23:a31b178e2263 19 #include "bike_service.h"
screamer 0:eb7f02ad28a7 20 #include "ble/services/HeartRateService.h"
bobbaddeley 23:a31b178e2263 21 #include "ble/services/BatteryService.h"
screamer 0:eb7f02ad28a7 22
apalmieri 13:227a0149b677 23 DigitalOut led1(LED1, 1);
screamer 0:eb7f02ad28a7 24
bobbaddeley 23:a31b178e2263 25 const static char DEVICE_NAME[] = "HeckBike";
bobbaddeley 23:a31b178e2263 26 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE,
bobbaddeley 23:a31b178e2263 27 GattService::UUID_BATTERY_SERVICE,
bobbaddeley 23:a31b178e2263 28 0x8EC5};//made up UUID for the Heck bike
apalmieri 13:227a0149b677 29
Technicus 22:985657fc70c8 30 uint8_t hrmCounter = 60; // init HRM to 60bps
bobbaddeley 23:a31b178e2263 31 uint8_t inputs = 0x00;
bobbaddeley 23:a31b178e2263 32 uint8_t outputs = 0x00;
bobbaddeley 23:a31b178e2263 33 uint32_t timestamp = 0x00;
bobbaddeley 23:a31b178e2263 34
screamer 0:eb7f02ad28a7 35 static volatile bool triggerSensorPolling = false;
screamer 0:eb7f02ad28a7 36
apalmieri 2:bc0c0d442a24 37 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
screamer 0:eb7f02ad28a7 38 {
apalmieri 13:227a0149b677 39 (void)params;
apalmieri 13:227a0149b677 40 BLE::Instance().gap().startAdvertising(); // restart advertising
screamer 0:eb7f02ad28a7 41 }
screamer 0:eb7f02ad28a7 42
screamer 0:eb7f02ad28a7 43 void periodicCallback(void)
screamer 0:eb7f02ad28a7 44 {
screamer 0:eb7f02ad28a7 45 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
screamer 0:eb7f02ad28a7 46 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
screamer 0:eb7f02ad28a7 47 * heavy-weight sensor polling from the main thread. */
screamer 0:eb7f02ad28a7 48 triggerSensorPolling = true;
screamer 0:eb7f02ad28a7 49 }
screamer 0:eb7f02ad28a7 50
apalmieri 13:227a0149b677 51 void onBleInitError(BLE &ble, ble_error_t error)
apalmieri 13:227a0149b677 52 {
apalmieri 13:227a0149b677 53 (void)ble;
apalmieri 13:227a0149b677 54 (void)error;
apalmieri 13:227a0149b677 55 /* Initialization error handling should go here */
apalmieri 13:227a0149b677 56 }
apalmieri 13:227a0149b677 57
Technicus 22:985657fc70c8 58 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
Technicus 22:985657fc70c8 59 hrmCounter = *(params->data);
Technicus 22:985657fc70c8 60 }
Technicus 22:985657fc70c8 61
apalmieri 13:227a0149b677 62 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
screamer 0:eb7f02ad28a7 63 {
apalmieri 13:227a0149b677 64 BLE& ble = params->ble;
apalmieri 13:227a0149b677 65 ble_error_t error = params->error;
screamer 0:eb7f02ad28a7 66
apalmieri 13:227a0149b677 67 if (error != BLE_ERROR_NONE) {
apalmieri 13:227a0149b677 68 onBleInitError(ble, error);
apalmieri 13:227a0149b677 69 return;
apalmieri 13:227a0149b677 70 }
apalmieri 13:227a0149b677 71
apalmieri 13:227a0149b677 72 if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
apalmieri 13:227a0149b677 73 return;
apalmieri 13:227a0149b677 74 }
apalmieri 13:227a0149b677 75
screamer 0:eb7f02ad28a7 76 ble.gap().onDisconnection(disconnectionCallback);
screamer 0:eb7f02ad28a7 77
Technicus 22:985657fc70c8 78 ble.gattServer().onDataWritten(onDataWrittenCallback);
screamer 0:eb7f02ad28a7 79 /* Setup primary service. */
screamer 0:eb7f02ad28a7 80 HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
bobbaddeley 23:a31b178e2263 81 /* Setup battery service. */
bobbaddeley 23:a31b178e2263 82 BatteryService btService(ble,100);
screamer 0:eb7f02ad28a7 83 /* Setup advertising. */
screamer 0:eb7f02ad28a7 84 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
screamer 0:eb7f02ad28a7 85 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
bobbaddeley 23:a31b178e2263 86 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_CYCLING);
screamer 0:eb7f02ad28a7 87 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
screamer 0:eb7f02ad28a7 88 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
screamer 0:eb7f02ad28a7 89 ble.gap().setAdvertisingInterval(1000); /* 1000ms */
screamer 0:eb7f02ad28a7 90 ble.gap().startAdvertising();
screamer 0:eb7f02ad28a7 91
screamer 0:eb7f02ad28a7 92 // infinite loop
apalmieri 13:227a0149b677 93 while (true) {
screamer 0:eb7f02ad28a7 94 // check for trigger from periodicCallback()
screamer 0:eb7f02ad28a7 95 if (triggerSensorPolling && ble.getGapState().connected) {
screamer 0:eb7f02ad28a7 96 triggerSensorPolling = false;
screamer 0:eb7f02ad28a7 97
screamer 0:eb7f02ad28a7 98 // Do blocking calls or whatever is necessary for sensor polling.
screamer 0:eb7f02ad28a7 99 // In our case, we simply update the HRM measurement.
screamer 0:eb7f02ad28a7 100 hrmCounter++;
screamer 0:eb7f02ad28a7 101
apalmieri 21:0e7c08f5386f 102 // 60 <= HRM bps <= 100
apalmieri 21:0e7c08f5386f 103 if (hrmCounter == 100) {
apalmieri 21:0e7c08f5386f 104 hrmCounter = 60;
screamer 0:eb7f02ad28a7 105 }
screamer 0:eb7f02ad28a7 106
screamer 0:eb7f02ad28a7 107 // update bps
screamer 0:eb7f02ad28a7 108 hrService.updateHeartRate(hrmCounter);
screamer 0:eb7f02ad28a7 109 } else {
screamer 0:eb7f02ad28a7 110 ble.waitForEvent(); // low power wait for event
screamer 0:eb7f02ad28a7 111 }
screamer 0:eb7f02ad28a7 112 }
screamer 0:eb7f02ad28a7 113 }
apalmieri 13:227a0149b677 114
apalmieri 13:227a0149b677 115 int main(void)
apalmieri 13:227a0149b677 116 {
apalmieri 13:227a0149b677 117 Ticker ticker;
apalmieri 13:227a0149b677 118 ticker.attach(periodicCallback, 1); // blink LED every second
apalmieri 13:227a0149b677 119
apalmieri 13:227a0149b677 120 BLE::Instance().init(bleInitComplete);
apalmieri 13:227a0149b677 121 }
apalmieri 14:f715c13eb84f 122