Dear Sir,
I am working on the following scenario.
I have BLE device ( SDK 15 and softdevice s132). It is advertising for specific duration.
There are different phones at different distances from the BLE device.
There will be multiple requests coming to the BLE device to establish connection. I want the BLE device to connect the phone with highest signal strength?
Is it possible to do handle such a scenario with SDK15 and softdevice s132?
Please guide me on this.
Thanking you.
The p_ble_evt->evt.gap_evt.params.scan_req_report.rssi sets rssi to the received signal strength to the device that sent a scan request package. It should therefore vary when multiple devices are sending scan request packages.
You can print the peer address by printing the p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr array that is of length BLE_GAP_ADDR_LEN.
The format for printing characters with NRF_LOG_INFO is NRF_LOG_INFO("PEER[1]: %02x",p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr[1]);
Good luck
Jared
Thank you.
ok.I have used the following for that.
void NRF_LOG_INFO_ARRAY(uint8_t * array, uint8_t array_size)
{
for(int i = 0; i < array_size; i++)
{
NRF_LOG_RAW_INFO("0x%x ",array[i]);
}
NRF_LOG_RAW_INFO("\r\n");
}
Thank you for your time and suggestion.
So as you mentioned above, I need to comment out first line and uncomment the second one. right?
Is the answer to the above question is yes?
Yes that is correct
Thank you. very much.
Hi Jared,
Now I am trying to check whether my whitelist is working correctl or not. I am copying the main file here.
/**
* Copyright (c) 2014 - 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/** @example examples/ble_peripheral/ble_app_hrs/main.c
*
* @brief Heart Rate Service Sample Application main file.
*
* This file contains the source code for a sample application using the Heart Rate service
* (and also Battery and Device Information services). This application uses the
* @ref srvlib_conn_params module.
*/
#include <stdint.h>
#include <string.h>
#include "nordic_common.h"
#include "nrf.h"
#include "nrf_sdm.h"
#include "app_error.h"
#include "ble.h"
#include "ble_err.h"
#include "ble_hci.h"
#include "ble_srv_common.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_bas.h"
#include "ble_hrs.h"
#include "ble_dis.h"
#include "ble_conn_params.h"
#include "sensorsim.h"
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_soc.h"
#include "app_timer.h"
#include "bsp_btn_ble.h"
#include "peer_manager.h"
#include "fds.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "ble_conn_state.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#define DEVICE_NAME "Nordic_HRM" /**< Name of device. Will be included in the advertising data. */
#define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */
#define APP_ADV_INTERVAL 300 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 187.5 ms). */
#define APP_ADV_DURATION 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */
#define BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(2000) /**< Battery level measurement interval (ticks). */
#define MIN_BATTERY_LEVEL 81 /**< Minimum simulated battery level. */
#define MAX_BATTERY_LEVEL 100 /**< Maximum simulated 7battery level. */
#define BATTERY_LEVEL_INCREMENT 1 /**< Increment between each simulated battery level measurement. */
#define HEART_RATE_MEAS_INTERVAL APP_TIMER_TICKS(1000) /**< Heart rate measurement interval (ticks). */
#define MIN_HEART_RATE 140 /**< Minimum heart rate as returned by the simulated measurement function. */
#define MAX_HEART_RATE 300 /**< Maximum heart rate as returned by the simulated measurement function. */
#define HEART_RATE_INCREMENT 10 /**< Value by which the heart rate is incremented/decremented for each call to the simulated measurement function. */
#define RR_INTERVAL_INTERVAL APP_TIMER_TICKS(300) /**< RR interval interval (ticks). */
#define MIN_RR_INTERVAL 100 /**< Minimum RR interval as returned by the simulated measurement function. */
#define MAX_RR_INTERVAL 500 /**< Maximum RR interval as returned by the simulated measurement function. */
#define RR_INTERVAL_INCREMENT 1 /**< Value by which the RR interval is incremented/decremented for each call to the simulated measurement function. */
#define SENSOR_CONTACT_DETECTED_INTERVAL APP_TIMER_TICKS(5000) /**< Sensor Contact Detected toggle interval (ticks). */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(400, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.4 seconds). */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(650, UNIT_1_25_MS) /**< Maximum acceptable connection interval (0.65 second). */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */
#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */
#define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */
#define SEC_PARAM_BOND 1 /**< Perform bonding. */
#define SEC_PARAM_MITM 0 /**< Man In The Middle protection not required. */
#define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */
#define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */
#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE /**< No I/O capabilities. */
#define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */
#define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */
#define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */
#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
BLE_HRS_DEF(m_hrs); /**< Heart rate service instance. */
BLE_BAS_DEF(m_bas); /**< Structure used to identify the battery service. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/
BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */
APP_TIMER_DEF(m_battery_timer_id); /**< Battery timer. */
APP_TIMER_DEF(m_heart_rate_timer_id); /**< Heart rate measurement timer. */
APP_TIMER_DEF(m_rr_interval_timer_id); /**< RR interval timer. */
APP_TIMER_DEF(m_sensor_contact_timer_id); /**< Sensor contact detected timer. */
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static bool m_rr_interval_enabled = true; /**< Flag for enabling and disabling the registration of new RR interval measurements (the purpose of disabling this is just to test sending HRM without RR interval data. */
static sensorsim_cfg_t m_battery_sim_cfg; /**< Battery Level sensor simulator configuration. */
static sensorsim_state_t m_battery_sim_state; /**< Battery Level sensor simulator state. */
static sensorsim_cfg_t m_heart_rate_sim_cfg; /**< Heart Rate sensor simulator configuration. */
static sensorsim_state_t m_heart_rate_sim_state; /**< Heart Rate sensor simulator state. */
static sensorsim_cfg_t m_rr_interval_sim_cfg; /**< RR Interval sensor simulator configuration. */
static sensorsim_state_t m_rr_interval_sim_state; /**< RR Interval sensor simulator state. */
static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifiers. */
{
{BLE_UUID_HEART_RATE_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}
};
/**@brief Callback function for asserts in the SoftDevice.
*
* @details This function will be called in case of an assert in the SoftDevice.
*
* @warning This handler is an example only and does not fit a final product. You need to analyze
* how your product is supposed to react in case of Assert.
* @warning On assert from the SoftDevice, the system can only recover on reset.
*
* @param[in] line_num Line number of the failing ASSERT call.
* @param[in] file_name File name of the failing ASSERT call.
*/
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
app_error_handler(DEAD_BEEF, line_num, p_file_name);
}
/**@brief Clear bond information from persistent storage.
*/
static void delete_bonds(void)
{
ret_code_t err_code;
NRF_LOG_INFO("Erase bonds!");
err_code = pm_peers_delete();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for starting advertising.
*/
void advertising_start(bool erase_bonds)
{
if (erase_bonds == true)
{
delete_bonds();
// Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event.
}
else
{
ret_code_t err_code;
err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for handling File Data Storage events.
*
* @param[in] p_evt Peer Manager event.
* @param[in] cmd
*/
static void fds_evt_handler(fds_evt_t const * const p_evt)
{
if (p_evt->id == FDS_EVT_GC)
{
NRF_LOG_DEBUG("GC completed\n");
}
}
/**@brief Function for handling Peer Manager events.
*
* @param[in] p_evt Peer Manager event.
*/
static void pm_evt_handler(pm_evt_t const * p_evt)
{
ret_code_t err_code;
switch (p_evt->evt_id)
{
case PM_EVT_BONDED_PEER_CONNECTED:
{
NRF_LOG_INFO("Connected to a previously bonded device.");
} break;
case PM_EVT_CONN_SEC_SUCCEEDED:
{
NRF_LOG_INFO("Connection secured: role: %d, conn_handle: 0x%x, procedure: %d.",
ble_conn_state_role(p_evt->conn_handle),
p_evt->conn_handle,
p_evt->params.conn_sec_succeeded.procedure);
} break;
case PM_EVT_CONN_SEC_FAILED:
{
/* Often, when securing fails, it shouldn't be restarted, for security reasons.
* Other times, it can be restarted directly.
* Sometimes it can be restarted, but only after changing some Security Parameters.
* Sometimes, it cannot be restarted until the link is disconnected and reconnected.
* Sometimes it is impossible, to secure the link, or the peer device does not support it.
* How to handle this error is highly application dependent. */
} break;
case PM_EVT_CONN_SEC_CONFIG_REQ:
{
// Reject pairing request from an already bonded peer.
pm_conn_sec_config_t conn_sec_config = {.allow_repairing = false};
pm_conn_sec_config_reply(p_evt->conn_handle, &conn_sec_config);
} break;
case PM_EVT_STORAGE_FULL:
{
// Run garbage collection on the flash.
err_code = fds_gc();
if (err_code == FDS_ERR_NO_SPACE_IN_QUEUES)
{
// Retry.
}
else
{
APP_ERROR_CHECK(err_code);
}
} break;
case PM_EVT_PEERS_DELETE_SUCCEEDED:
{
NRF_LOG_DEBUG("PM_EVT_PEERS_DELETE_SUCCEEDED");
advertising_start(false);
} break;
case PM_EVT_PEER_DATA_UPDATE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peer_data_update_failed.error);
} break;
case PM_EVT_PEER_DELETE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peer_delete_failed.error);
} break;
case PM_EVT_PEERS_DELETE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peers_delete_failed_evt.error);
} break;
case PM_EVT_ERROR_UNEXPECTED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.error_unexpected.error);
} break;
case PM_EVT_CONN_SEC_START:
case PM_EVT_PEER_DATA_UPDATE_SUCCEEDED:
case PM_EVT_PEER_DELETE_SUCCEEDED:
case PM_EVT_LOCAL_DB_CACHE_APPLIED:
case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED:
// This can happen when the local DB has changed.
case PM_EVT_SERVICE_CHANGED_IND_SENT:
case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED:
default:
break;
}
}
/**@brief Function for performing battery measurement and updating the Battery Level characteristic
* in Battery Service.
*/
static void battery_level_update(void)
{
ret_code_t err_code;
uint8_t battery_level;
battery_level = (uint8_t)sensorsim_measure(&m_battery_sim_state, &m_battery_sim_cfg);
err_code = ble_bas_battery_level_update(&m_bas, battery_level, BLE_CONN_HANDLE_ALL);
if ((err_code != NRF_SUCCESS) &&
(err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_BUSY) &&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
}
/**@brief Function for handling the Battery measurement timer timeout.
*
* @details This function will be called each time the battery level measurement timer expires.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void battery_level_meas_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
battery_level_update();
}
/**@brief Function for handling the Heart rate measurement timer timeout.
*
* @details This function will be called each time the heart rate measurement timer expires.
* It will exclude RR Interval data from every third measurement.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void heart_rate_meas_timeout_handler(void * p_context)
{
static uint32_t cnt = 0;
ret_code_t err_code;
uint16_t heart_rate;
UNUSED_PARAMETER(p_context);
heart_rate = (uint16_t)sensorsim_measure(&m_heart_rate_sim_state, &m_heart_rate_sim_cfg);
cnt++;
err_code = ble_hrs_heart_rate_measurement_send(&m_hrs, heart_rate);
if ((err_code != NRF_SUCCESS) &&
(err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_BUSY) &&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
// Disable RR Interval recording every third heart rate measurement.
// NOTE: An application will normally not do this. It is done here just for testing generation
// of messages without RR Interval measurements.
m_rr_interval_enabled = ((cnt % 3) != 0);
}
/**@brief Function for handling the RR interval timer timeout.
*
* @details This function will be called each time the RR interval timer expires.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void rr_interval_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
if (m_rr_interval_enabled)
{
uint16_t rr_interval;
rr_interval = (uint16_t)sensorsim_measure(&m_rr_interval_sim_state,
&m_rr_interval_sim_cfg);
ble_hrs_rr_interval_add(&m_hrs, rr_interval);
rr_interval = (uint16_t)sensorsim_measure(&m_rr_interval_sim_state,
&m_rr_interval_sim_cfg);
ble_hrs_rr_interval_add(&m_hrs, rr_interval);
rr_interval = (uint16_t)sensorsim_measure(&m_rr_interval_sim_state,
&m_rr_interval_sim_cfg);
ble_hrs_rr_interval_add(&m_hrs, rr_interval);
rr_interval = (uint16_t)sensorsim_measure(&m_rr_interval_sim_state,
&m_rr_interval_sim_cfg);
ble_hrs_rr_interval_add(&m_hrs, rr_interval);
rr_interval = (uint16_t)sensorsim_measure(&m_rr_interval_sim_state,
&m_rr_interval_sim_cfg);
ble_hrs_rr_interval_add(&m_hrs, rr_interval);
rr_interval = (uint16_t)sensorsim_measure(&m_rr_interval_sim_state,
&m_rr_interval_sim_cfg);
ble_hrs_rr_interval_add(&m_hrs, rr_interval);
}
}
/**@brief Function for handling the Sensor Contact Detected timer timeout.
*
* @details This function will be called each time the Sensor Contact Detected timer expires.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void sensor_contact_detected_timeout_handler(void * p_context)
{
static bool sensor_contact_detected = false;
UNUSED_PARAMETER(p_context);
sensor_contact_detected = !sensor_contact_detected;
ble_hrs_sensor_contact_detected_update(&m_hrs, sensor_contact_detected);
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module. This creates and starts application timers.
*/
static void timers_init(void)
{
ret_code_t err_code;
// Initialize timer module.
err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
// Create timers.
err_code = app_timer_create(&m_battery_timer_id,
APP_TIMER_MODE_REPEATED,
battery_level_meas_timeout_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&m_heart_rate_timer_id,
APP_TIMER_MODE_REPEATED,
heart_rate_meas_timeout_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&m_rr_interval_timer_id,
APP_TIMER_MODE_REPEATED,
rr_interval_timeout_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&m_sensor_contact_timer_id,
APP_TIMER_MODE_REPEATED,
sensor_contact_detected_timeout_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for the GAP initialization.
*
* @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the
* device including the device name, appearance, and the preferred connection parameters.
*/
static void gap_params_init(void)
{
ret_code_t err_code;
ble_gap_conn_params_t gap_conn_params;
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *)DEVICE_NAME,
strlen(DEVICE_NAME));
APP_ERROR_CHECK(err_code);
err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_HEART_RATE_SENSOR_HEART_RATE_BELT);
APP_ERROR_CHECK(err_code);
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT;
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}
/**@brief GATT module event handler.
*/
static void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt)
{
if (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED)
{
NRF_LOG_INFO("GATT ATT MTU on connection 0x%x changed to %d.",
p_evt->conn_handle,
p_evt->params.att_mtu_effective);
}
ble_hrs_on_gatt_evt(&m_hrs, p_evt);
}
/**@brief Function for initializing the GATT module.
*/
static void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling Queued Write Module errors.
*
* @details A pointer to this function will be passed to each service which may need to inform the
* application about an error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void nrf_qwr_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing services that will be used by the application.
*
* @details Initialize the Heart Rate, Battery and Device Information services.
*/
static void services_init(void)
{
ret_code_t err_code;
ble_hrs_init_t hrs_init;
ble_bas_init_t bas_init;
ble_dis_init_t dis_init;
nrf_ble_qwr_init_t qwr_init = {0};
uint8_t body_sensor_location;
// Initialize Queued Write Module.
qwr_init.error_handler = nrf_qwr_error_handler;
err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init);
APP_ERROR_CHECK(err_code);
// Initialize Heart Rate Service.
body_sensor_location = BLE_HRS_BODY_SENSOR_LOCATION_FINGER;
memset(&hrs_init, 0, sizeof(hrs_init));
hrs_init.evt_handler = NULL;
hrs_init.is_sensor_contact_supported = true;
hrs_init.p_body_sensor_location = &body_sensor_location;
// Here the sec level for the Heart Rate Service can be changed/increased.
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&hrs_init.hrs_hrm_attr_md.cccd_write_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_hrm_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_hrm_attr_md.write_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&hrs_init.hrs_bsl_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_bsl_attr_md.write_perm);
err_code = ble_hrs_init(&m_hrs, &hrs_init);
APP_ERROR_CHECK(err_code);
// Initialize Battery Service.
memset(&bas_init, 0, sizeof(bas_init));
// Here the sec level for the Battery Service can be changed/increased.
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_char_attr_md.cccd_write_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_char_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bas_init.battery_level_char_attr_md.write_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_report_read_perm);
bas_init.evt_handler = NULL;
bas_init.support_notification = true;
bas_init.p_report_ref = NULL;
bas_init.initial_batt_level = 100;
err_code = ble_bas_init(&m_bas, &bas_init);
APP_ERROR_CHECK(err_code);
// Initialize Device Information Service.
memset(&dis_init, 0, sizeof(dis_init));
ble_srv_ascii_to_utf8(&dis_init.manufact_name_str, (char *)MANUFACTURER_NAME);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&dis_init.dis_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&dis_init.dis_attr_md.write_perm);
err_code = ble_dis_init(&dis_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the sensor simulators.
*/
static void sensor_simulator_init(void)
{
m_battery_sim_cfg.min = MIN_BATTERY_LEVEL;
m_battery_sim_cfg.max = MAX_BATTERY_LEVEL;
m_battery_sim_cfg.incr = BATTERY_LEVEL_INCREMENT;
m_battery_sim_cfg.start_at_max = true;
sensorsim_init(&m_battery_sim_state, &m_battery_sim_cfg);
m_heart_rate_sim_cfg.min = MIN_HEART_RATE;
m_heart_rate_sim_cfg.max = MAX_HEART_RATE;
m_heart_rate_sim_cfg.incr = HEART_RATE_INCREMENT;
m_heart_rate_sim_cfg.start_at_max = false;
sensorsim_init(&m_heart_rate_sim_state, &m_heart_rate_sim_cfg);
m_rr_interval_sim_cfg.min = MIN_RR_INTERVAL;
m_rr_interval_sim_cfg.max = MAX_RR_INTERVAL;
m_rr_interval_sim_cfg.incr = RR_INTERVAL_INCREMENT;
m_rr_interval_sim_cfg.start_at_max = false;
sensorsim_init(&m_rr_interval_sim_state, &m_rr_interval_sim_cfg);
}
/**@brief Function for starting application timers.
*/
static void application_timers_start(void)
{
ret_code_t err_code;
// Start application timers.
err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(m_heart_rate_timer_id, HEART_RATE_MEAS_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(m_rr_interval_timer_id, RR_INTERVAL_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(m_sensor_contact_timer_id, SENSOR_CONTACT_DETECTED_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the Connection Parameters Module.
*
* @details This function will be called for all events in the Connection Parameters Module which
* are passed to the application.
* @note All this function does is to disconnect. This could have been done by simply
* setting the disconnect_on_fail config parameter, but instead we use the event
* handler mechanism to demonstrate its use.
*
* @param[in] p_evt Event received from the Connection Parameters Module.
*/
static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
{
ret_code_t err_code;
if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
{
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for handling a Connection Parameters error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void conn_params_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
ret_code_t err_code;
ble_conn_params_init_t cp_init;
memset(&cp_init, 0, sizeof(cp_init));
cp_init.p_conn_params = NULL;
cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
cp_init.start_on_notify_cccd_handle = m_hrs.hrm_handles.cccd_handle;
cp_init.disconnect_on_fail = false;
cp_init.evt_handler = on_conn_params_evt;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for putting the chip into sleep mode.
*
* @note This function will not return.
*/
static void sleep_mode_enter(void)
{
ret_code_t err_code;
err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
// Prepare wakeup buttons.
err_code = bsp_btn_ble_sleep_mode_prepare();
APP_ERROR_CHECK(err_code);
// Go to system-off mode (this function will not return; wakeup will cause a reset).
err_code = sd_power_system_off();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling advertising events.
*
* @details This function will be called for advertising events which are passed to the application.
*
* @param[in] ble_adv_evt Advertising event.
*/
static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
ret_code_t err_code;
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
NRF_LOG_INFO("Fast advertising.");
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
break;
case BLE_ADV_EVT_IDLE:
sleep_mode_enter();
break;
case BLE_ADV_EVT_WHITELIST_REQUEST:
NRF_LOG_INFO("Requesting whitelist from main \n ");
ble_gap_addr_t whitelist_addr = {0, BLE_GAP_ADDR_TYPE_RANDOM_STATIC, {0x22, 0x96, 0x56, 0x9c, 0x50, 0xDA}};
const ble_gap_addr_t *p_whitelist_addr[1] = {&whitelist_addr};
err_code = sd_ble_gap_whitelist_set(p_whitelist_addr, 1);
APP_ERROR_CHECK(err_code);
err_code = ble_advertising_whitelist_reply(&m_advertising,&whitelist_addr, 1, NULL, 0);
APP_ERROR_CHECK(err_code);
break;
default:
break;
}
}
void NRF_LOG_INFO_ARRAY(uint8_t * array, uint8_t array_size)
{
for(int i = 0; i < array_size; i++)
{
NRF_LOG_RAW_INFO("0x%x ",array[i]);
}
NRF_LOG_RAW_INFO("\r\n");
}
/**@brief Function for handling BLE events.
*
* @param[in] p_ble_evt Bluetooth stack event.
* @param[in] p_context Unused.
*/
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
ret_code_t err_code;
ble_gap_addr_t peer_address_cent;
int8_t rssi_cent;
char strDeviceName[20];
int no;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("Connected.");
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected, reason %d.",
p_ble_evt->evt.gap_evt.params.disconnected.reason);
m_conn_handle = BLE_CONN_HANDLE_INVALID;
break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
NRF_LOG_DEBUG("PHY update request.");
ble_gap_phys_t const phys =
{
.rx_phys = BLE_GAP_PHY_AUTO,
.tx_phys = BLE_GAP_PHY_AUTO,
};
err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
APP_ERROR_CHECK(err_code);
} break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
NRF_LOG_DEBUG("GATT Client Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_TIMEOUT:
// Disconnect on GATT Server timeout event.
NRF_LOG_DEBUG("GATT Server Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_SCAN_REQ_REPORT:
NRF_LOG_INFO("In scan req report ");
// no = 6;
// sprintf(&strDeviceName[0], "%s%05d\0", &DEVICE_NAME[0], no);
rssi_cent = p_ble_evt->evt.gap_evt.params.scan_req_report.rssi;
peer_address_cent = p_ble_evt->evt.gap_evt.params.scan_req_report.peer_addr;
NRF_LOG_INFO("rssi = %d",rssi_cent );
NRF_LOG_INFO_ARRAY(peer_address_cent.addr,BLE_GAP_ADDR_LEN);
/* NRF_LOG_INFO("addr = %x",peer_address_cent.addr[0] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[1] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[2] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[3] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[4] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[5] );*/
NRF_LOG_INFO("End");
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
ret_code_t err_code;
err_code = nrf_sdh_enable_request();
APP_ERROR_CHECK(err_code);
// Configure the BLE stack using the default settings.
// Fetch the start address of the application RAM.
uint32_t ram_start = 0;
err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
APP_ERROR_CHECK(err_code);
// Enable BLE stack.
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
// Register a handler for BLE events.
NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}
/**@brief Function for handling events from the BSP module.
*
* @param[in] event Event generated by button press.
*/
void bsp_event_handler(bsp_event_t event)
{
ret_code_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
sleep_mode_enter();
break;
case BSP_EVENT_DISCONNECT:
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;
case BSP_EVENT_WHITELIST_OFF:
if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
{
err_code = ble_advertising_restart_without_whitelist(&m_advertising);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
break;
default:
break;
}
}
/**@brief Function for the Peer Manager initialization.
*/
static void peer_manager_init(void)
{
ble_gap_sec_params_t sec_param;
ret_code_t err_code;
err_code = pm_init();
APP_ERROR_CHECK(err_code);
memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));
// Security parameters to be used for all security procedures.
sec_param.bond = SEC_PARAM_BOND;
sec_param.mitm = SEC_PARAM_MITM;
sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES;
sec_param.oob = SEC_PARAM_OOB;
sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
sec_param.kdist_own.enc = 1;
sec_param.kdist_own.id = 1;
sec_param.kdist_peer.enc = 1;
sec_param.kdist_peer.id = 1;
err_code = pm_sec_params_set(&sec_param);
APP_ERROR_CHECK(err_code);
err_code = pm_register(pm_evt_handler);
APP_ERROR_CHECK(err_code);
err_code = fds_register(fds_evt_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the Advertising functionality.
*/
static void advertising_init(void)
{
ret_code_t err_code;
ble_advertising_init_t init;
memset(&init, 0, sizeof(init));
init.advdata.name_type = BLE_ADVDATA_FULL_NAME;
init.advdata.include_appearance = true;
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
init.advdata.uuids_complete.p_uuids = m_adv_uuids;
init.config.ble_adv_fast_enabled = true;
init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
init.config.ble_adv_fast_timeout = APP_ADV_DURATION;
init.evt_handler = on_adv_evt;
init.config.ble_adv_whitelist_enabled =true; //gk for whitelist
err_code = ble_advertising_init(&m_advertising, &init);
APP_ERROR_CHECK(err_code);
ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}
/**@brief Function for initializing buttons and leds.
*
* @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up.
*/
static void buttons_leds_init(bool * p_erase_bonds)
{
ret_code_t err_code;
bsp_event_t startup_event;
err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler);
APP_ERROR_CHECK(err_code);
err_code = bsp_btn_ble_init(NULL, &startup_event);
APP_ERROR_CHECK(err_code);
*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}
/**@brief Function for initializing the nrf log module.
*/
static void log_init(void)
{
ret_code_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
}
/**@brief Function for initializing power management.
*/
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the idle state (main loop).
*
* @details If there is no pending log operation, then sleep until next the next event occurs.
*/
static void idle_state_handle(void)
{
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}
/**@brief Function for application main entry.
*/
int main(void)
{
bool erase_bonds;
// Initialize.
log_init();
timers_init();
buttons_leds_init(&erase_bonds);
power_management_init();
ble_stack_init();
gap_params_init();
gatt_init();
advertising_init();
services_init();
sensor_simulator_init();
conn_params_init();
peer_manager_init();
// Start execution.
NRF_LOG_INFO("Heart Rate Sensor example started.");
application_timers_start();
advertising_start(erase_bonds);
// Enter main loop.
for (;;)
{
idle_state_handle();
}
}
Without the code for whitelist (commenting the code inside case BLE_ADV_EVT_WHITELIST_REQUEST:).I could connect to the device from the phone( using NRFConnect).
When I enable this code segment I could not connect to the device.
Q1) Is the changes I made in the main file is sufficient to work with whitelist successfully?Is there any addition/deletion required?
Q2)Now I have given a random address "0x22, 0x96, 0x56, 0x9c, 0x50, 0xDA". If I am using Android phone( with nRFConnect), how can I get its peer address? because I want to put the adddress of my phone in whitelist and check whether it is connecting or not...
If this works, then I will move on to populating the whitlist with the highest rssi peer details.
At first I want to confirm , once I create a whitelist is it connecting to the peer address in the whitelist only?
Hence I am working with the code copied above
Thanking you in advance.