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@15:4e1b36b73213, 2014-05-22 (annotated)

Committer:
Rohit Grover
Date:
Thu May 22 13:09:17 2014 +0100
Revision:
15:4e1b36b73213
Parent:
14:dfdf0c8b1c09
Child:
16:3a0aa30e3b12
some more cosmetic changes

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"
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 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 10:391c1acf4b9d 42 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
ktownsend 0:7613d21e5974 60 /* Initialise the nRF51822 */
ktownsend 0:7613d21e5974 61 pc.printf("Initialising the nRF51822\n\r");
Rohit Grover 11:6774f4827024 62 ble.init();
Rohit Grover 11:6774f4827024 63 ble.reset();
ktownsend 0:7613d21e5974 64
Rohit Grover 10:391c1acf4b9d 65 /* Setup advertising data. This includes AD structures in the payload of
Rohit Grover 15:4e1b36b73213 66 * advertising packets. */
Rohit Grover 10:391c1acf4b9d 67 {
Rohit Grover 10:391c1acf4b9d 68 GapAdvertisingData advData;
Rohit Grover 10:391c1acf4b9d 69 advData.addFlags(GapAdvertisingData::BREDR_NOT_SUPPORTED);
Rohit Grover 10:391c1acf4b9d 70 advData.addData(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA,
Rohit Grover 10:391c1acf4b9d 71 beaconPayload,
Rohit Grover 10:391c1acf4b9d 72 sizeof(beaconPayload));
Rohit Grover 13:04c6103760d2 73 ble.setAdvertisingData(advData);
Rohit Grover 10:391c1acf4b9d 74 }
ktownsend 0:7613d21e5974 75
ktownsend 0:7613d21e5974 76 /* Start advertising! */
Rohit Grover 10:391c1acf4b9d 77 GapAdvertisingParams advParams(
Rohit Grover 10:391c1acf4b9d 78 GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
Rohit Grover 12:00545c957af4 79 ble.startAdvertising(advParams);
ktownsend 0:7613d21e5974 80
Rohit Grover 9:438f44012039 81 /* Do blinky on mainloopLED while we're waiting for BLE events */
rohit.grover 5:97ce285ff00a 82 for (;; ) {
Rohit Grover 9:438f44012039 83 mainloopLED = !mainloopLED;
rohit.grover 6:26eab6ee6df4 84 wait(1);
ktownsend 0:7613d21e5974 85 }
Rohit Grover 10:391c1acf4b9d 86 }
Rohit Grover 10:391c1acf4b9d 87
Rohit Grover 10:391c1acf4b9d 88 void setupAppHardware(void)
Rohit Grover 10:391c1acf4b9d 89 {
Rohit Grover 10:391c1acf4b9d 90 /* Setup blinkies: mainloopLED is toggled in main, tickerLED is
Rohit Grover 10:391c1acf4b9d 91 * toggled via Ticker */
Rohit Grover 10:391c1acf4b9d 92 mainloopLED = 1;
Rohit Grover 10:391c1acf4b9d 93 tickerLED = 1;
Rohit Grover 10:391c1acf4b9d 94 flipper.attach(&tickerCallback, 1.0);
ktownsend 0:7613d21e5974 95 }
ktownsend 0:7613d21e5974 96
ktownsend 0:7613d21e5974 97 /**************************************************************************/
ktownsend 0:7613d21e5974 98 /*!
Rohit Grover 9:438f44012039 99 @brief Ticker callback to switch tickerLED state
ktownsend 0:7613d21e5974 100 */
ktownsend 0:7613d21e5974 101 /**************************************************************************/
ktownsend 0:7613d21e5974 102 void tickerCallback(void)
ktownsend 0:7613d21e5974 103 {
Rohit Grover 9:438f44012039 104 tickerLED = !tickerLED;
ktownsend 0:7613d21e5974 105 }