Bert Kruger / Mbed 2 deprecated BLE_Beacon_Payload_Refresh

BLE iBeacon demonstrating how to change the payload data every second

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_iBeacon by Bluetooth Low Energy

main.cpp@49:a3428aa11fc7, 2014-12-04 (annotated)

Committer:
Protoneer
Date:
Thu Dec 04 05:51:22 2014 +0000
Revision:
49:a3428aa11fc7
Parent:
48:6568db49629c 
Change the Advertisement Interval

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ktownsend 0:7613d21e5974 1 #include "mbed.h"
Rohit Grover 32:7b7093b653a8 2 #include "BLEDevice.h"
Protoneer 48:6568db49629c 3 #include "nrf_temp.h"
ktownsend 0:7613d21e5974 4
Rohit Grover 32:7b7093b653a8 5 BLEDevice ble;
Rohit Grover 31:93e50a3c3dc6 6
Protoneer 48:6568db49629c 7 #define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console;
Protoneer 48:6568db49629c 8 * it will have an impact on code-size and power consumption. */
ktownsend 0:7613d21e5974 9
Rohit Grover 31:93e50a3c3dc6 10 #if NEED_CONSOLE_OUTPUT
Rohit Grover 31:93e50a3c3dc6 11 Serial pc(USBTX, USBRX);
Protoneer 48:6568db49629c 12 DigitalOut led1(LED1);
Rohit Grover 31:93e50a3c3dc6 13 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
Rohit Grover 31:93e50a3c3dc6 14 #else
Rohit Grover 31:93e50a3c3dc6 15 #define DEBUG(...) /* nothing */
Rohit Grover 31:93e50a3c3dc6 16 #endif /* #if NEED_CONSOLE_OUTPUT */
ktownsend 0:7613d21e5974 17
Protoneer 48:6568db49629c 18 uint8_t beaconPayload[] = {
rgrover1 43:b5dc3241fc91 19 0x4C, 0x00,
rgrover1 43:b5dc3241fc91 20 0x02,
rgrover1 43:b5dc3241fc91 21 0x15,
rgrover1 44:71ff94cd9c1d 22 0x01, 0x12, 0x23, 0x34, 0x45, 0x56, 0x67, 0x78,
rgrover1 44:71ff94cd9c1d 23 0x89, 0x9a, 0xab, 0xbc, 0xcd, 0xde, 0xef, 0xf0,
rgrover1 43:b5dc3241fc91 24 0x00, 0x00,
rgrover1 43:b5dc3241fc91 25 0x00, 0x00,
rgrover1 47:447eb23e67e2 26 0xC7
Rohit Grover 10:391c1acf4b9d 27 };
Rohit Grover 10:391c1acf4b9d 28
Protoneer 48:6568db49629c 29 uint8_t counter = 100;
Protoneer 48:6568db49629c 30 static volatile bool triggerPayloadUpdatePolling = false;
Protoneer 48:6568db49629c 31
Protoneer 48:6568db49629c 32 void periodicCallback(void)
Protoneer 48:6568db49629c 33 {
Protoneer 48:6568db49629c 34 led1 = !led1;
Protoneer 48:6568db49629c 35 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
Protoneer 48:6568db49629c 36 * heavy-weight sensor polling from the main thread. */
Protoneer 48:6568db49629c 37 triggerPayloadUpdatePolling = true;
Protoneer 48:6568db49629c 38 }
Protoneer 48:6568db49629c 39
ktownsend 0:7613d21e5974 40 int main(void)
ktownsend 0:7613d21e5974 41 {
Protoneer 48:6568db49629c 42
Protoneer 48:6568db49629c 43
Protoneer 48:6568db49629c 44 Ticker ticker;
Protoneer 48:6568db49629c 45 ticker.attach(periodicCallback, 1); //Sets update time of sensors
Protoneer 48:6568db49629c 46
Rohit Grover 31:93e50a3c3dc6 47 DEBUG("Initialising BTLE transport\n\r");
Protoneer 48:6568db49629c 48 beaconPayload[21] = 0x01; //Minor value 2
Protoneer 48:6568db49629c 49 beaconPayload[23] = 0x01; //Minor value 2
Rohit Grover 11:6774f4827024 50 ble.init();
Protoneer 48:6568db49629c 51 nrf_temp_init();
Protoneer 48:6568db49629c 52 // pc.printf("temperature init");
ktownsend 0:7613d21e5974 53
Rohit Grover 37:205deeded79d 54 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
Rohit Grover 27:8d4f5bda1191 55 ble.accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, beaconPayload, sizeof(beaconPayload));
Rohit Grover 20:5e84b5b253a5 56 ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
Protoneer 49:a3428aa11fc7 57 ble.setAdvertisingInterval(1600); /* 1s; in multiples of 0.625ms. */
Rohit Grover 19:869d8c7306b4 58 ble.startAdvertising();
ktownsend 0:7613d21e5974 59
Rohit Grover 21:a61af863b273 60 for (;;) {
Protoneer 48:6568db49629c 61
Protoneer 48:6568db49629c 62 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
Protoneer 48:6568db49629c 63 * heavy-weight sensor polling from the main thread. */
Protoneer 48:6568db49629c 64 if(triggerPayloadUpdatePolling) {
Protoneer 48:6568db49629c 65 triggerPayloadUpdatePolling = false;
Protoneer 48:6568db49629c 66 if(counter<100) {
Protoneer 48:6568db49629c 67 counter++;
Protoneer 48:6568db49629c 68 } else {
Protoneer 48:6568db49629c 69 counter = 0;
Protoneer 48:6568db49629c 70 }
Protoneer 48:6568db49629c 71
Protoneer 48:6568db49629c 72
Protoneer 48:6568db49629c 73 int32_t temperature = 0;
Protoneer 48:6568db49629c 74
Protoneer 48:6568db49629c 75 NRF_TEMP->TASKS_START = 1; /* Start the temperature measurement */
Protoneer 48:6568db49629c 76 while ((NRF_TEMP->EVENTS_DATARDY & TEMP_INTENSET_DATARDY_Msk) != (TEMP_INTENSET_DATARDY_Set << TEMP_INTENSET_DATARDY_Pos)) {
Protoneer 48:6568db49629c 77 }
Protoneer 48:6568db49629c 78 NRF_TEMP->EVENTS_DATARDY = 0;
Protoneer 48:6568db49629c 79
Protoneer 48:6568db49629c 80 temperature = (uint8_t)(nrf_temp_read()/4);
Protoneer 48:6568db49629c 81
Rohit Grover 31:93e50a3c3dc6 82
Protoneer 48:6568db49629c 83 NRF_TEMP->TASKS_STOP = 1; /* Stop the temperature measurement */
Protoneer 48:6568db49629c 84
Protoneer 48:6568db49629c 85
Protoneer 48:6568db49629c 86
Protoneer 48:6568db49629c 87
Protoneer 48:6568db49629c 88
Protoneer 48:6568db49629c 89 DEBUG("are we here %d \n ",counter);
Protoneer 48:6568db49629c 90 beaconPayload[21] = temperature; //Major value 2
Protoneer 48:6568db49629c 91 beaconPayload[23] = counter; //Minor value 2
Protoneer 48:6568db49629c 92 ble.clearAdvertisingPayload();
Protoneer 48:6568db49629c 93
Protoneer 48:6568db49629c 94 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
Protoneer 48:6568db49629c 95 ble.accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, beaconPayload, sizeof(beaconPayload));
Protoneer 48:6568db49629c 96 ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
Protoneer 48:6568db49629c 97 ble.setAdvertisingInterval(16000); /* 1s; in multiples of 0.625ms. */
Protoneer 48:6568db49629c 98 ble.startAdvertising();
Protoneer 48:6568db49629c 99
Protoneer 48:6568db49629c 100 } else {
Protoneer 48:6568db49629c 101
Protoneer 48:6568db49629c 102 ble.waitForEvent();
Protoneer 48:6568db49629c 103 }
Protoneer 48:6568db49629c 104
Protoneer 48:6568db49629c 105 }
Protoneer 48:6568db49629c 106 }