Bert Kruger / Mbed 2 deprecated BLE_Beacon_Payload_Refresh

BLE iBeacon demonstrating how to change the payload data every second

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_iBeacon by Bluetooth Low Energy

main.cpp@37:205deeded79d, 2014-07-04 (annotated)

Committer:
Rohit Grover
Date:
Fri Jul 04 15:14:58 2014 +0100
Revision:
37:205deeded79d
Parent:
32:7b7093b653a8
Child:
41:51f585d14675
include LE_GENERAL_DISCOVERABLE in advertising payload

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ktownsend 0:7613d21e5974 1 /* mbed Microcontroller Library
ktownsend 0:7613d21e5974 2 * Copyright (c) 2006-2013 ARM Limited
ktownsend 0:7613d21e5974 3 *
ktownsend 0:7613d21e5974 4 * Licensed under the Apache License, Version 2.0 (the "License");
ktownsend 0:7613d21e5974 5 * you may not use this file except in compliance with the License.
ktownsend 0:7613d21e5974 6 * You may obtain a copy of the License at
ktownsend 0:7613d21e5974 7 *
ktownsend 0:7613d21e5974 8 * http://www.apache.org/licenses/LICENSE-2.0
ktownsend 0:7613d21e5974 9 *
ktownsend 0:7613d21e5974 10 * Unless required by applicable law or agreed to in writing, software
ktownsend 0:7613d21e5974 11 * distributed under the License is distributed on an "AS IS" BASIS,
ktownsend 0:7613d21e5974 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ktownsend 0:7613d21e5974 13 * See the License for the specific language governing permissions and
ktownsend 0:7613d21e5974 14 * limitations under the License.
ktownsend 0:7613d21e5974 15 */
ktownsend 0:7613d21e5974 16
ktownsend 0:7613d21e5974 17 #include "mbed.h"
Rohit Grover 32:7b7093b653a8 18 #include "BLEDevice.h"
ktownsend 0:7613d21e5974 19
Rohit Grover 32:7b7093b653a8 20 BLEDevice ble;
Rohit Grover 31:93e50a3c3dc6 21
Rohit Grover 31:93e50a3c3dc6 22 #define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console;
Rohit Grover 31:93e50a3c3dc6 23 * it will have an impact on code-size and power consumption. */
ktownsend 0:7613d21e5974 24
Rohit Grover 31:93e50a3c3dc6 25 #if NEED_CONSOLE_OUTPUT
Rohit Grover 31:93e50a3c3dc6 26 Serial pc(USBTX, USBRX);
Rohit Grover 31:93e50a3c3dc6 27 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
Rohit Grover 31:93e50a3c3dc6 28 #else
Rohit Grover 31:93e50a3c3dc6 29 #define DEBUG(...) /* nothing */
Rohit Grover 31:93e50a3c3dc6 30 #endif /* #if NEED_CONSOLE_OUTPUT */
ktownsend 0:7613d21e5974 31
Rohit Grover 10:391c1acf4b9d 32 /*
Rohit Grover 10:391c1acf4b9d 33 * For this demo application, populate the beacon advertisement payload
Rohit Grover 15:4e1b36b73213 34 * with 2 AD structures: FLAG and MSD (manufacturer specific data).
Rohit Grover 10:391c1acf4b9d 35 *
Rohit Grover 10:391c1acf4b9d 36 * Reference:
Rohit Grover 10:391c1acf4b9d 37 * Bluetooth Core Specification 4.0 (Vol. 3), Part C, Section 11, 18
Rohit Grover 10:391c1acf4b9d 38 */
ktownsend 0:7613d21e5974 39
Rohit Grover 14:dfdf0c8b1c09 40 /*
Rohit Grover 15:4e1b36b73213 41 * The Beacon payload (encapsulated within the MSD advertising data structure)
Rohit Grover 15:4e1b36b73213 42 * has the following composition:
Rohit Grover 10:391c1acf4b9d 43 * 128-Bit UUID = E2 0A 39 F4 73 F5 4B C4 A1 2F 17 D1 AD 07 A9 61
Rohit Grover 10:391c1acf4b9d 44 * Major/Minor = 0000 / 0000
Rohit Grover 10:391c1acf4b9d 45 * Tx Power = C8
Rohit Grover 10:391c1acf4b9d 46 */
Rohit Grover 22:080d9bf2f5c0 47 const static uint8_t beaconPayload[] = {
Rohit Grover 10:391c1acf4b9d 48 0x4C, 0x00, // Company identifier code (0x004C == Apple)
Rohit Grover 10:391c1acf4b9d 49 0x02, // ID
Rohit Grover 10:391c1acf4b9d 50 0x15, // length of the remaining payload
Rohit Grover 31:93e50a3c3dc6 51 0xE2, 0x0A, 0x39, 0xF4, 0x73, 0xF5, 0x4B, 0xC4, // location UUID
Rohit Grover 10:391c1acf4b9d 52 0xA1, 0x2F, 0x17, 0xD1, 0xAD, 0x07, 0xA9, 0x61,
Rohit Grover 31:93e50a3c3dc6 53 0x00, 0x00, // the major value to differentiate a location
Rohit Grover 31:93e50a3c3dc6 54 0x00, 0x00, // the minor value to differentiate a location
Rohit Grover 10:391c1acf4b9d 55 0xC8 // 2's complement of the Tx power (-56dB)
Rohit Grover 10:391c1acf4b9d 56 };
Rohit Grover 10:391c1acf4b9d 57
ktownsend 0:7613d21e5974 58 int main(void)
ktownsend 0:7613d21e5974 59 {
Rohit Grover 31:93e50a3c3dc6 60 DEBUG("Initialising BTLE transport\n\r");
Rohit Grover 11:6774f4827024 61 ble.init();
ktownsend 0:7613d21e5974 62
Rohit Grover 37:205deeded79d 63 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
Rohit Grover 27:8d4f5bda1191 64 ble.accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, beaconPayload, sizeof(beaconPayload));
ktownsend 0:7613d21e5974 65
Rohit Grover 20:5e84b5b253a5 66 ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
Rohit Grover 23:b66fa312e926 67 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
Rohit Grover 19:869d8c7306b4 68 ble.startAdvertising();
ktownsend 0:7613d21e5974 69
Rohit Grover 21:a61af863b273 70 for (;;) {
Rohit Grover 31:93e50a3c3dc6 71 ble.waitForEvent();
ktownsend 0:7613d21e5974 72 }
Rohit Grover 31:93e50a3c3dc6 73
Rohit Grover 31:93e50a3c3dc6 74 // An alternative to the above:
Rohit Grover 31:93e50a3c3dc6 75 //
Rohit Grover 31:93e50a3c3dc6 76 // DigitalOut mainloopLED(LED1);
Rohit Grover 31:93e50a3c3dc6 77 // for (;;) {
Rohit Grover 31:93e50a3c3dc6 78 // mainloopLED = !mainloopLED;
Rohit Grover 31:93e50a3c3dc6 79 // wait(1);
Rohit Grover 31:93e50a3c3dc6 80 // }
Rohit Grover 10:391c1acf4b9d 81 }