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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@13:04c6103760d2, 2014-05-22 (annotated)
- Committer:
- Rohit Grover
- Date:
- Thu May 22 12:13:26 2014 +0100
- Revision:
- 13:04c6103760d2
- Parent:
- 12:00545c957af4
- Child:
- 14:dfdf0c8b1c09
user overloaded setAdvertisingData() to avoid having to specify a scan response
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" |
ktownsend | 0:7613d21e5974 | 18 | #include "nRF51822n.h" |
ktownsend | 0:7613d21e5974 | 19 | |
Rohit Grover |
11:6774f4827024 | 20 | nRF51822n ble; /* BLE radio driver */ |
ktownsend | 0:7613d21e5974 | 21 | |
Rohit Grover |
9:438f44012039 | 22 | DigitalOut mainloopLED(LED1); |
Rohit Grover |
9:438f44012039 | 23 | DigitalOut tickerLED(LED2); |
ktownsend | 0:7613d21e5974 | 24 | Ticker flipper; |
ktownsend | 0:7613d21e5974 | 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 |
10:391c1acf4b9d | 29 | * with 2 AD structures: FLAG and MSD |
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 |
10:391c1acf4b9d | 35 | /* Define an Beacon payload. |
Rohit Grover |
10:391c1acf4b9d | 36 | * |
Rohit Grover |
10:391c1acf4b9d | 37 | * This is the data part of the MSD AdvertisingData structure to be added to |
Rohit Grover |
10:391c1acf4b9d | 38 | * the advertising payload. |
Rohit Grover |
10:391c1acf4b9d | 39 | * -------------------------------------------------------------- |
Rohit Grover |
10:391c1acf4b9d | 40 | * 128-Bit UUID = E2 0A 39 F4 73 F5 4B C4 A1 2F 17 D1 AD 07 A9 61 |
Rohit Grover |
10:391c1acf4b9d | 41 | * Major/Minor = 0000 / 0000 |
Rohit Grover |
10:391c1acf4b9d | 42 | * Tx Power = C8 |
Rohit Grover |
10:391c1acf4b9d | 43 | */ |
Rohit Grover |
10:391c1acf4b9d | 44 | uint8_t beaconPayload[] = { |
Rohit Grover |
10:391c1acf4b9d | 45 | 0x4C, 0x00, // Company identifier code (0x004C == Apple) |
Rohit Grover |
10:391c1acf4b9d | 46 | 0x02, // ID |
Rohit Grover |
10:391c1acf4b9d | 47 | 0x15, // length of the remaining payload |
Rohit Grover |
10:391c1acf4b9d | 48 | 0xE2, 0x0A, 0x39, 0xF4, 0x73, 0xF5, 0x4B, 0xC4, // UUID |
Rohit Grover |
10:391c1acf4b9d | 49 | 0xA1, 0x2F, 0x17, 0xD1, 0xAD, 0x07, 0xA9, 0x61, |
Rohit Grover |
10:391c1acf4b9d | 50 | 0x00, 0x00, // the major value to differenciate a location |
Rohit Grover |
10:391c1acf4b9d | 51 | 0x00, 0x00, // the minor value to differenciate a location |
Rohit Grover |
10:391c1acf4b9d | 52 | 0xC8 // 2's complement of the Tx power (-56dB) |
Rohit Grover |
10:391c1acf4b9d | 53 | }; |
Rohit Grover |
10:391c1acf4b9d | 54 | |
Rohit Grover |
10:391c1acf4b9d | 55 | static void setupAppHardware(void); |
Rohit Grover |
10:391c1acf4b9d | 56 | static void tickerCallback(void); |
Rohit Grover |
10:391c1acf4b9d | 57 | |
ktownsend | 0:7613d21e5974 | 58 | int main(void) |
ktownsend | 0:7613d21e5974 | 59 | { |
Rohit Grover |
10:391c1acf4b9d | 60 | setupAppHardware(); |
ktownsend | 0:7613d21e5974 | 61 | |
ktownsend | 0:7613d21e5974 | 62 | /* Initialise the nRF51822 */ |
ktownsend | 0:7613d21e5974 | 63 | pc.printf("Initialising the nRF51822\n\r"); |
Rohit Grover |
11:6774f4827024 | 64 | ble.init(); |
Rohit Grover |
11:6774f4827024 | 65 | ble.reset(); |
ktownsend | 0:7613d21e5974 | 66 | |
Rohit Grover |
10:391c1acf4b9d | 67 | /* Setup advertising data. This includes AD structures in the payload of |
Rohit Grover |
10:391c1acf4b9d | 68 | * advertising packets; and scan-response data. */ |
Rohit Grover |
10:391c1acf4b9d | 69 | { |
Rohit Grover |
10:391c1acf4b9d | 70 | GapAdvertisingData advData; |
Rohit Grover |
10:391c1acf4b9d | 71 | advData.addFlags(GapAdvertisingData::BREDR_NOT_SUPPORTED); |
Rohit Grover |
10:391c1acf4b9d | 72 | advData.addData(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, |
Rohit Grover |
10:391c1acf4b9d | 73 | beaconPayload, |
Rohit Grover |
10:391c1acf4b9d | 74 | sizeof(beaconPayload)); |
Rohit Grover |
13:04c6103760d2 | 75 | ble.setAdvertisingData(advData); |
Rohit Grover |
10:391c1acf4b9d | 76 | } |
ktownsend | 0:7613d21e5974 | 77 | |
ktownsend | 0:7613d21e5974 | 78 | /* Start advertising! */ |
Rohit Grover |
10:391c1acf4b9d | 79 | GapAdvertisingParams advParams( |
Rohit Grover |
10:391c1acf4b9d | 80 | GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED); |
Rohit Grover |
12:00545c957af4 | 81 | ble.startAdvertising(advParams); |
ktownsend | 0:7613d21e5974 | 82 | |
Rohit Grover |
9:438f44012039 | 83 | /* Do blinky on mainloopLED while we're waiting for BLE events */ |
rohit.grover |
5:97ce285ff00a | 84 | for (;; ) { |
Rohit Grover |
9:438f44012039 | 85 | mainloopLED = !mainloopLED; |
rohit.grover |
6:26eab6ee6df4 | 86 | wait(1); |
ktownsend | 0:7613d21e5974 | 87 | } |
Rohit Grover |
10:391c1acf4b9d | 88 | |
Rohit Grover |
10:391c1acf4b9d | 89 | /* unreachable. */ |
Rohit Grover |
10:391c1acf4b9d | 90 | } |
Rohit Grover |
10:391c1acf4b9d | 91 | |
Rohit Grover |
10:391c1acf4b9d | 92 | void setupAppHardware(void) |
Rohit Grover |
10:391c1acf4b9d | 93 | { |
Rohit Grover |
10:391c1acf4b9d | 94 | /* Setup blinkies: mainloopLED is toggled in main, tickerLED is |
Rohit Grover |
10:391c1acf4b9d | 95 | * toggled via Ticker */ |
Rohit Grover |
10:391c1acf4b9d | 96 | mainloopLED = 1; |
Rohit Grover |
10:391c1acf4b9d | 97 | tickerLED = 1; |
Rohit Grover |
10:391c1acf4b9d | 98 | flipper.attach(&tickerCallback, 1.0); |
ktownsend | 0:7613d21e5974 | 99 | } |
ktownsend | 0:7613d21e5974 | 100 | |
ktownsend | 0:7613d21e5974 | 101 | /**************************************************************************/ |
ktownsend | 0:7613d21e5974 | 102 | /*! |
Rohit Grover |
9:438f44012039 | 103 | @brief Ticker callback to switch tickerLED state |
ktownsend | 0:7613d21e5974 | 104 | */ |
ktownsend | 0:7613d21e5974 | 105 | /**************************************************************************/ |
ktownsend | 0:7613d21e5974 | 106 | void tickerCallback(void) |
ktownsend | 0:7613d21e5974 | 107 | { |
Rohit Grover |
9:438f44012039 | 108 | tickerLED = !tickerLED; |
ktownsend | 0:7613d21e5974 | 109 | } |