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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:
- 9:438f44012039
- Parent:
- 8:d851d92601b7
- Child:
- 10:391c1acf4b9d
File content as of revision 9:438f44012039:
/* 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 "nRF51822n.h" nRF51822n nrf; /* BLE radio driver */ DigitalOut mainloopLED(LED1); DigitalOut tickerLED(LED2); Ticker flipper; Serial pc(USBTX,USBRX); void tickerCallback(void); /**************************************************************************/ /*! @brief Program entry point */ /**************************************************************************/ int main(void) { /* Setup blinky: mainloopLED is toggled in main, tickerLED is toggled via Ticker */ mainloopLED = 1; tickerLED = 1; flipper.attach(&tickerCallback, 1.0); /* Initialise the nRF51822 */ pc.printf("Initialising the nRF51822\n\r"); nrf.init(); GapAdvertisingParams advParams ( GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED ); GapAdvertisingData advData; GapAdvertisingData scanResponse; /* * For this demo application, populate the beacon advertisement payload * with 2 AD structures: FLAG and MSD * * Reference: * Bluetooth Core Specification 4.0 (Vol. 3), Part C, Section 11, 18 */ /* Define an Beacon payload. This is the data part of the MSD AdvertisingData structure to be added to the advertising payload. -------------------------------------------------------------- 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) }; /* Make sure we get a clean start */ nrf.reset(); advData.addFlags(GapAdvertisingData::BREDR_NOT_SUPPORTED); advData.addData(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, beaconPayload, sizeof(beaconPayload)); /* Start advertising! */ nrf.getGap().setAdvertisingData(advData, scanResponse); nrf.getGap().startAdvertising(advParams); /* Do blinky on mainloopLED while we're waiting for BLE events */ for (;; ) { mainloopLED = !mainloopLED; wait(1); } } /**************************************************************************/ /*! @brief Ticker callback to switch tickerLED state */ /**************************************************************************/ void tickerCallback(void) { tickerLED = !tickerLED; }