File content as of revision 1:29b2cca0d529:

#include "mbed.h"
#include "Puck.hpp"

Puck::Puck(uint16_t minor) {
    /*
     * 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  = 1337 / XXXX
     * Tx Power     = C8
     */
    uint8_t beaconPayloadTemplate[] = {
        0x00, 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,
        0x13, 0x37, // the major value to differenciate a location (Our app requires 1337 as major number)
        0x00, 0x00, // the minor value to differenciate a location (Change this to differentiate location pucks)
        0xC8        // 2's complement of the Tx power (-56dB)
    };
    beaconPayloadTemplate[22] = minor >> 8;
    beaconPayloadTemplate[23] = minor & 255;
    
    for (int i=0; i < 25; i++) {
        _beaconPayload[i] = beaconPayloadTemplate[i];
    }
}

void Puck::init(void) {
    _ble.init();

    _ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
    _ble.accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA,
                    _beaconPayload, sizeof(_beaconPayload));
    
    _ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
    
    _ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */

    _ble.startAdvertising();
}