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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
- Committer:
- Rohit Grover
- Date:
- 2014-05-22
- Revision:
- 18:e49bb8b059bf
- Parent:
- 17:e7748951593e
- Child:
- 19:869d8c7306b4
File content as of revision 18:e49bb8b059bf:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "mbed.h" #include "BLEDevice.h" BLEDevice ble; /* BLE radio driver */ DigitalOut mainloopLED(LED1); DigitalOut tickerLED(LED2); Ticker flipper; Serial pc(USBTX,USBRX); /* * For this demo application, populate the beacon advertisement payload * with 2 AD structures: FLAG and MSD (manufacturer specific data). * * Reference: * Bluetooth Core Specification 4.0 (Vol. 3), Part C, Section 11, 18 */ /* * The Beacon payload (encapsulated within the MSD advertising data structure) * has the following composition: * 128-Bit UUID = E2 0A 39 F4 73 F5 4B C4 A1 2F 17 D1 AD 07 A9 61 * Major/Minor = 0000 / 0000 * Tx Power = C8 */ uint8_t beaconPayload[] = { 0x4C, 0x00, // Company identifier code (0x004C == Apple) 0x02, // ID 0x15, // length of the remaining payload 0xE2, 0x0A, 0x39, 0xF4, 0x73, 0xF5, 0x4B, 0xC4, // UUID 0xA1, 0x2F, 0x17, 0xD1, 0xAD, 0x07, 0xA9, 0x61, 0x00, 0x00, // the major value to differenciate a location 0x00, 0x00, // the minor value to differenciate a location 0xC8 // 2's complement of the Tx power (-56dB) }; static void setupAppHardware(void); static void tickerCallback(void); int main(void) { setupAppHardware(); pc.printf("Initialising BTLE transport\n\r"); ble.init(); ble.reset(); /* Setup advertising data. This includes AD structures in the payload of * advertising packets. */ { GapAdvertisingData advData; advData.addFlags(GapAdvertisingData::BREDR_NOT_SUPPORTED); advData.addData(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, beaconPayload, sizeof(beaconPayload)); ble.setAdvertisingData(advData); } /* Start advertising! */ GapAdvertisingParams advParams( GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED); ble.startAdvertising(advParams); /* Do blinky on mainloopLED while we're waiting for BLE events */ for (;; ) { mainloopLED = !mainloopLED; wait(1); } } void setupAppHardware(void) { /* Setup blinkies: mainloopLED is toggled in main, tickerLED is * toggled via Ticker */ mainloopLED = 1; tickerLED = 1; flipper.attach(&tickerCallback, 1.0); } void tickerCallback(void) { tickerLED = !tickerLED; }