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@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?

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 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 }