ST / Mbed OS mbed-os-example-ble-Beacon

BLE Beacon example

This example is a fork of the following mbed-os example:

https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-ble-Beacon/

Please read the documentation in this page.

source/main.cpp@39:f5e6ffd728d7, 2017-07-28 (annotated)

Committer:
bcostm
Date:
Fri Jul 28 09:35:58 2017 +0200
Revision:
39:f5e6ffd728d7
Parent:
28:9090fe431353 
Add DISCO_L475VG_IOT01A in mbed_app.json

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 3:41f6be68aefb 1 /* mbed Microcontroller Library
mbed_official 3:41f6be68aefb 2 * Copyright (c) 2006-2015 ARM Limited
mbed_official 3:41f6be68aefb 3 *
mbed_official 3:41f6be68aefb 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 3:41f6be68aefb 5 * you may not use this file except in compliance with the License.
mbed_official 3:41f6be68aefb 6 * You may obtain a copy of the License at
mbed_official 3:41f6be68aefb 7 *
mbed_official 3:41f6be68aefb 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 3:41f6be68aefb 9 *
mbed_official 3:41f6be68aefb 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 3:41f6be68aefb 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 3:41f6be68aefb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 3:41f6be68aefb 13 * See the License for the specific language governing permissions and
mbed_official 3:41f6be68aefb 14 * limitations under the License.
mbed_official 3:41f6be68aefb 15 */
mbed_official 3:41f6be68aefb 16
mbed_official 12:af576944a152 17 #include <events/mbed_events.h>
mbed_official 3:41f6be68aefb 18 #include <mbed.h>
mbed_official 3:41f6be68aefb 19 #include "ble/BLE.h"
mbed_official 3:41f6be68aefb 20 #include "ble/services/iBeacon.h"
mbed_official 3:41f6be68aefb 21
mbed_official 3:41f6be68aefb 22 static iBeacon* ibeaconPtr;
mbed_official 3:41f6be68aefb 23
mbed_official 28:9090fe431353 24 static EventQueue eventQueue(/* event count */ 4 * EVENTS_EVENT_SIZE);
mbed_official 3:41f6be68aefb 25
mbed_official 3:41f6be68aefb 26 /**
mbed_official 3:41f6be68aefb 27 * This function is called when the ble initialization process has failled
mbed_official 3:41f6be68aefb 28 */
mbed_official 3:41f6be68aefb 29 void onBleInitError(BLE &ble, ble_error_t error)
mbed_official 3:41f6be68aefb 30 {
mbed_official 3:41f6be68aefb 31 /* Initialization error handling should go here */
mbed_official 3:41f6be68aefb 32 }
mbed_official 3:41f6be68aefb 33
mbed_official 3:41f6be68aefb 34 /**
mbed_official 3:41f6be68aefb 35 * Callback triggered when the ble initialization process has finished
mbed_official 3:41f6be68aefb 36 */
mbed_official 3:41f6be68aefb 37 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
mbed_official 3:41f6be68aefb 38 {
mbed_official 3:41f6be68aefb 39 BLE& ble = params->ble;
mbed_official 3:41f6be68aefb 40 ble_error_t error = params->error;
mbed_official 3:41f6be68aefb 41
mbed_official 3:41f6be68aefb 42 if (error != BLE_ERROR_NONE) {
mbed_official 3:41f6be68aefb 43 /* In case of error, forward the error handling to onBleInitError */
mbed_official 3:41f6be68aefb 44 onBleInitError(ble, error);
mbed_official 3:41f6be68aefb 45 return;
mbed_official 3:41f6be68aefb 46 }
mbed_official 3:41f6be68aefb 47
mbed_official 3:41f6be68aefb 48 /* Ensure that it is the default instance of BLE */
mbed_official 3:41f6be68aefb 49 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
mbed_official 3:41f6be68aefb 50 return;
mbed_official 3:41f6be68aefb 51 }
mbed_official 3:41f6be68aefb 52
mbed_official 3:41f6be68aefb 53 /**
mbed_official 3:41f6be68aefb 54 * The Beacon payload has the following composition:
mbed_official 3:41f6be68aefb 55 * 128-Bit / 16byte UUID = E2 0A 39 F4 73 F5 4B C4 A1 2F 17 D1 AD 07 A9 61
mbed_official 3:41f6be68aefb 56 * Major/Minor = 0x1122 / 0x3344
mbed_official 3:41f6be68aefb 57 * Tx Power = 0xC8 = 200, 2's compliment is 256-200 = (-56dB)
mbed_official 3:41f6be68aefb 58 *
mbed_official 3:41f6be68aefb 59 * Note: please remember to calibrate your beacons TX Power for more accurate results.
mbed_official 3:41f6be68aefb 60 */
mbed_official 3:41f6be68aefb 61 static const uint8_t uuid[] = {0xE2, 0x0A, 0x39, 0xF4, 0x73, 0xF5, 0x4B, 0xC4,
mbed_official 3:41f6be68aefb 62 0xA1, 0x2F, 0x17, 0xD1, 0xAD, 0x07, 0xA9, 0x61};
mbed_official 3:41f6be68aefb 63 uint16_t majorNumber = 1122;
mbed_official 3:41f6be68aefb 64 uint16_t minorNumber = 3344;
mbed_official 3:41f6be68aefb 65 uint16_t txPower = 0xC8;
mbed_official 3:41f6be68aefb 66 ibeaconPtr = new iBeacon(ble, uuid, majorNumber, minorNumber, txPower);
mbed_official 3:41f6be68aefb 67
mbed_official 3:41f6be68aefb 68 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
mbed_official 3:41f6be68aefb 69 ble.gap().startAdvertising();
mbed_official 3:41f6be68aefb 70 }
mbed_official 3:41f6be68aefb 71
mbed_official 3:41f6be68aefb 72 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
mbed_official 3:41f6be68aefb 73 BLE &ble = BLE::Instance();
mbed_official 12:af576944a152 74 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
mbed_official 3:41f6be68aefb 75 }
mbed_official 3:41f6be68aefb 76
mbed_official 3:41f6be68aefb 77 int main()
mbed_official 3:41f6be68aefb 78 {
mbed_official 3:41f6be68aefb 79 BLE &ble = BLE::Instance();
mbed_official 3:41f6be68aefb 80 ble.onEventsToProcess(scheduleBleEventsProcessing);
mbed_official 3:41f6be68aefb 81 ble.init(bleInitComplete);
mbed_official 3:41f6be68aefb 82
mbed_official 12:af576944a152 83 eventQueue.dispatch_forever();
mbed_official 3:41f6be68aefb 84
mbed_official 3:41f6be68aefb 85 return 0;
mbed_official 3:41f6be68aefb 86 }