Al Williams / Mbed 2 deprecated BLE_Beacon

Simple beacon for nRF51822

Dependencies:   BLE_API mbed nRF51822Copy

Fork of BLE_iBeacon by Bluetooth Low Energy

This is the demo beacon for ARM TechCon 2014.

Based on the original library, this demo reads the onboard switches and temperature sensor and beacons them out as a BLE advertisment.

main.cpp@27:8d4f5bda1191, 2014-06-10 (annotated)

Committer:
Rohit Grover
Date:
Tue Jun 10 10:27:33 2014 +0100
Revision:
27:8d4f5bda1191
Parent:
25:a56462536345
Child:
30:746d37d781de
update due to rename of BLEDevice to BLEPeripheral

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 27:8d4f5bda1191 18 #include "BLEPeripheral.h"
ktownsend 0:7613d21e5974 19
Rohit Grover 27:8d4f5bda1191 20 BLEPeripheral 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 24:9bcd0dbf0f41 53 void tickerCallback(void)
Rohit Grover 24:9bcd0dbf0f41 54 {
Rohit Grover 24:9bcd0dbf0f41 55 tickerLED = !tickerLED;
Rohit Grover 24:9bcd0dbf0f41 56 }
Rohit Grover 24:9bcd0dbf0f41 57
Rohit Grover 24:9bcd0dbf0f41 58 void setupAppHardware(void)
Rohit Grover 24:9bcd0dbf0f41 59 {
Rohit Grover 24:9bcd0dbf0f41 60 /* Setup blinkies: mainloopLED is toggled in main, tickerLED is
Rohit Grover 24:9bcd0dbf0f41 61 * toggled via Ticker */
Rohit Grover 24:9bcd0dbf0f41 62 mainloopLED = 1;
Rohit Grover 24:9bcd0dbf0f41 63 tickerLED = 1;
Rohit Grover 24:9bcd0dbf0f41 64 flipper.attach(&tickerCallback, 1.0);
Rohit Grover 24:9bcd0dbf0f41 65 }
Rohit Grover 10:391c1acf4b9d 66
ktownsend 0:7613d21e5974 67 int main(void)
ktownsend 0:7613d21e5974 68 {
Rohit Grover 10:391c1acf4b9d 69 setupAppHardware();
ktownsend 0:7613d21e5974 70
Rohit Grover 16:3a0aa30e3b12 71 pc.printf("Initialising BTLE transport\n\r");
Rohit Grover 11:6774f4827024 72 ble.init();
ktownsend 0:7613d21e5974 73
Rohit Grover 23:b66fa312e926 74 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
Rohit Grover 27:8d4f5bda1191 75 ble.accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, beaconPayload, sizeof(beaconPayload));
ktownsend 0:7613d21e5974 76
Rohit Grover 20:5e84b5b253a5 77 ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
Rohit Grover 23:b66fa312e926 78 ble.setAdvertisingTimeout(0); /* disable timeout. */
Rohit Grover 23:b66fa312e926 79 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
Rohit Grover 19:869d8c7306b4 80 ble.startAdvertising();
ktownsend 0:7613d21e5974 81
Rohit Grover 9:438f44012039 82 /* Do blinky on mainloopLED while we're waiting for BLE events */
Rohit Grover 21:a61af863b273 83 for (;;) {
Rohit Grover 9:438f44012039 84 mainloopLED = !mainloopLED;
rohit.grover 6:26eab6ee6df4 85 wait(1);
ktownsend 0:7613d21e5974 86 }
Rohit Grover 10:391c1acf4b9d 87 }