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BLE iBeacon demonstrating how to change the payload data every second
Dependencies: BLE_API mbed nRF51822
Fork of BLE_iBeacon by
main.cpp@23:b66fa312e926, 2014-05-23 (annotated)
- Committer:
- Rohit Grover
- Date:
- Fri May 23 17:04:34 2014 +0100
- Revision:
- 23:b66fa312e926
- Parent:
- 22:080d9bf2f5c0
- Child:
- 24:9bcd0dbf0f41
using simplified API to accumulate adv payload
Who changed what in which revision?
User | Revision | Line number | New 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 |
17:e7748951593e | 18 | #include "BLEDevice.h" |
ktownsend | 0:7613d21e5974 | 19 | |
Rohit Grover |
17:e7748951593e | 20 | BLEDevice ble; /* BLE radio driver */ |
ktownsend | 0:7613d21e5974 | 21 | |
Rohit Grover |
16:3a0aa30e3b12 | 22 | DigitalOut mainloopLED(LED1); |
Rohit Grover |
16:3a0aa30e3b12 | 23 | DigitalOut tickerLED(LED2); |
Rohit Grover |
16:3a0aa30e3b12 | 24 | Ticker flipper; |
Rohit Grover |
16:3a0aa30e3b12 | 25 | Serial pc(USBTX,USBRX); |
ktownsend | 0:7613d21e5974 | 26 | |
Rohit Grover |
10:391c1acf4b9d | 27 | /* |
Rohit Grover |
10:391c1acf4b9d | 28 | * For this demo application, populate the beacon advertisement payload |
Rohit Grover |
15:4e1b36b73213 | 29 | * with 2 AD structures: FLAG and MSD (manufacturer specific data). |
Rohit Grover |
10:391c1acf4b9d | 30 | * |
Rohit Grover |
10:391c1acf4b9d | 31 | * Reference: |
Rohit Grover |
10:391c1acf4b9d | 32 | * Bluetooth Core Specification 4.0 (Vol. 3), Part C, Section 11, 18 |
Rohit Grover |
10:391c1acf4b9d | 33 | */ |
ktownsend | 0:7613d21e5974 | 34 | |
Rohit Grover |
14:dfdf0c8b1c09 | 35 | /* |
Rohit Grover |
15:4e1b36b73213 | 36 | * The Beacon payload (encapsulated within the MSD advertising data structure) |
Rohit Grover |
15:4e1b36b73213 | 37 | * has the following composition: |
Rohit Grover |
10:391c1acf4b9d | 38 | * 128-Bit UUID = E2 0A 39 F4 73 F5 4B C4 A1 2F 17 D1 AD 07 A9 61 |
Rohit Grover |
10:391c1acf4b9d | 39 | * Major/Minor = 0000 / 0000 |
Rohit Grover |
10:391c1acf4b9d | 40 | * Tx Power = C8 |
Rohit Grover |
10:391c1acf4b9d | 41 | */ |
Rohit Grover |
22:080d9bf2f5c0 | 42 | const static uint8_t beaconPayload[] = { |
Rohit Grover |
10:391c1acf4b9d | 43 | 0x4C, 0x00, // Company identifier code (0x004C == Apple) |
Rohit Grover |
10:391c1acf4b9d | 44 | 0x02, // ID |
Rohit Grover |
10:391c1acf4b9d | 45 | 0x15, // length of the remaining payload |
Rohit Grover |
10:391c1acf4b9d | 46 | 0xE2, 0x0A, 0x39, 0xF4, 0x73, 0xF5, 0x4B, 0xC4, // UUID |
Rohit Grover |
10:391c1acf4b9d | 47 | 0xA1, 0x2F, 0x17, 0xD1, 0xAD, 0x07, 0xA9, 0x61, |
Rohit Grover |
10:391c1acf4b9d | 48 | 0x00, 0x00, // the major value to differenciate a location |
Rohit Grover |
10:391c1acf4b9d | 49 | 0x00, 0x00, // the minor value to differenciate a location |
Rohit Grover |
10:391c1acf4b9d | 50 | 0xC8 // 2's complement of the Tx power (-56dB) |
Rohit Grover |
10:391c1acf4b9d | 51 | }; |
Rohit Grover |
10:391c1acf4b9d | 52 | |
Rohit Grover |
10:391c1acf4b9d | 53 | static void setupAppHardware(void); |
Rohit Grover |
10:391c1acf4b9d | 54 | static void tickerCallback(void); |
Rohit Grover |
10:391c1acf4b9d | 55 | |
ktownsend | 0:7613d21e5974 | 56 | int main(void) |
ktownsend | 0:7613d21e5974 | 57 | { |
Rohit Grover |
10:391c1acf4b9d | 58 | setupAppHardware(); |
ktownsend | 0:7613d21e5974 | 59 | |
Rohit Grover |
16:3a0aa30e3b12 | 60 | pc.printf("Initialising BTLE transport\n\r"); |
Rohit Grover |
11:6774f4827024 | 61 | ble.init(); |
Rohit Grover |
11:6774f4827024 | 62 | ble.reset(); |
ktownsend | 0:7613d21e5974 | 63 | |
Rohit Grover |
23:b66fa312e926 | 64 | ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); |
Rohit Grover |
23:b66fa312e926 | 65 | ble.accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, |
Rohit Grover |
23:b66fa312e926 | 66 | beaconPayload, |
Rohit Grover |
23:b66fa312e926 | 67 | sizeof(beaconPayload)); |
ktownsend | 0:7613d21e5974 | 68 | |
Rohit Grover |
20:5e84b5b253a5 | 69 | ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED); |
Rohit Grover |
23:b66fa312e926 | 70 | ble.setAdvertisingTimeout(0); /* disable timeout. */ |
Rohit Grover |
23:b66fa312e926 | 71 | ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */ |
Rohit Grover |
19:869d8c7306b4 | 72 | ble.startAdvertising(); |
ktownsend | 0:7613d21e5974 | 73 | |
Rohit Grover |
9:438f44012039 | 74 | /* Do blinky on mainloopLED while we're waiting for BLE events */ |
Rohit Grover |
21:a61af863b273 | 75 | for (;;) { |
Rohit Grover |
9:438f44012039 | 76 | mainloopLED = !mainloopLED; |
rohit.grover |
6:26eab6ee6df4 | 77 | wait(1); |
ktownsend | 0:7613d21e5974 | 78 | } |
Rohit Grover |
10:391c1acf4b9d | 79 | } |
Rohit Grover |
10:391c1acf4b9d | 80 | |
Rohit Grover |
10:391c1acf4b9d | 81 | void setupAppHardware(void) |
Rohit Grover |
10:391c1acf4b9d | 82 | { |
Rohit Grover |
10:391c1acf4b9d | 83 | /* Setup blinkies: mainloopLED is toggled in main, tickerLED is |
Rohit Grover |
10:391c1acf4b9d | 84 | * toggled via Ticker */ |
Rohit Grover |
10:391c1acf4b9d | 85 | mainloopLED = 1; |
Rohit Grover |
10:391c1acf4b9d | 86 | tickerLED = 1; |
Rohit Grover |
10:391c1acf4b9d | 87 | flipper.attach(&tickerCallback, 1.0); |
ktownsend | 0:7613d21e5974 | 88 | } |
ktownsend | 0:7613d21e5974 | 89 | |
ktownsend | 0:7613d21e5974 | 90 | void tickerCallback(void) |
ktownsend | 0:7613d21e5974 | 91 | { |
Rohit Grover |
9:438f44012039 | 92 | tickerLED = !tickerLED; |
ktownsend | 0:7613d21e5974 | 93 | } |