NRF52832 BLE Scan

[shariq]

Hi

Can I get some idea on which functions to make changes to in order to scan and report(for example on uart) the number of ble devices present in NRF52832 kit range. 

I know ble central uart example does the scan, but I don't seem to forward with which functions to start off with.

I am using NRF52832 micro devkit with softdevice s132.

[shambhu]

////////////////////////////////// RFID READER V1.0.0 2024 //////////////////////////
/* 2024 */
/* R&D EMBEDDED TEAM */
/* RFID PROJECT */
/* ACTIVE RFID & ACTIVE TAG */
/* CENTRAL */
/* EMPLOYEE ID 013 */
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_soc.h"
#include "nrf_pwr_mgmt.h"
#include "app_timer.h"
#include "boards.h"
#include "bsp.h"
#include "bsp_btn_ble.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "ble_db_discovery.h"
#include "ble_lbs_c.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_scan.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

#define CENTRAL_SCANNING_LED BSP_BOARD_LED_0 /**< Scanning LED will be on when the device is scanning. */
#define CENTRAL_CONNECTED_LED BSP_BOARD_LED_1 /**< Connected LED will be on when the device is connected. */
#define LEDBUTTON_LED BSP_BOARD_LED_2 /**< LED to indicate a change of state of the the Button characteristic on the peer. */

#define SCAN_INTERVAL 0x00A0 /**< Determines scan interval in units of 0.625 millisecond. */
#define SCAN_WINDOW 0x0050 /**< Determines scan window in units of 0.625 millisecond. */
#define SCAN_DURATION 0x0000 /**< Timout when scanning. 0x0000 disables timeout. */

#define MIN_CONNECTION_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) /**< Determines minimum connection interval in milliseconds. */
#define MAX_CONNECTION_INTERVAL MSEC_TO_UNITS(30, UNIT_1_25_MS) /**< Determines maximum connection interval in milliseconds. */
#define SLAVE_LATENCY 0 /**< Determines slave latency in terms of connection events. */
#define SUPERVISION_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Determines supervision time-out in units of 10 milliseconds. */

#define LEDBUTTON_BUTTON_PIN BSP_BUTTON_0 /**< Button that will write to the LED characteristic of the peer */
#define BUTTON_DETECTION_DELAY APP_TIMER_TICKS(50) /**< Delay from a GPIOTE event until a button is reported as pushed (in number of timer ticks). */

#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. */

NRF_BLE_SCAN_DEF(m_scan); /**< Scanning module instance. */
BLE_LBS_C_DEF(m_ble_lbs_c); /**< Main structure used by the LBS client module. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
BLE_DB_DISCOVERY_DEF(m_db_disc); /**< DB discovery module instance. */

static char const m_target_periph_name[] = "(NORDIC)"; /**< Name of the device we try to connect to. This name is searched in the scan report data*/

#define SCAN_LIST_REFRESH_INTERVAL 10000 // 100 sec

static uint32_t device_number;

#define FOUND_DEVICE_REFRESH_TIME APP_TIMER_TICKS(SCAN_LIST_REFRESH_INTERVAL) /**< Time after which the device list is clean and refreshed. */

#define DEVICE_NAME_MAX_SIZE 20
#define DEVICE_TO_FIND_MAX 50

typedef struct
{
bool is_not_empty; /**< Indicates that the structure is not empty. */
uint16_t size; /**< Size of manuf data. */
uint8_t addr[BLE_GAP_ADDR_LEN]; /**< Device address. */
char dev_name[DEVICE_NAME_MAX_SIZE]; /**< Device name. */
uint8_t data_buffer[BLE_GAP_ADV_SET_DATA_SIZE_MAX]; /**< Buffer for storing an manuf data. */
uint8_t rssi ;
} scanned_device_t;

void device_list_print(scanned_device_t * p_device);

scanned_device_t m_device[DEVICE_TO_FIND_MAX]; /**< Stores device info from scan data. */

void scan_device_info_clear(void)
{
memset(m_device, 0, sizeof(m_device));
device_number = 0;
}

/**@brief Function for printing the devices.
*
*@details Function print list of devices.
*
*
* @param[in] device Pointer to the struct storing the scanned devices.
*/
void device_list_print(scanned_device_t * p_device)
{
// We could now clear the list:
scan_device_info_clear();

}

scanned_device_t * scan_device_info_get(void)
{
return m_device;

}

typedef struct
{
uint8_t * p_data; /**< Pointer to data. */
uint16_t data_len; /**< Length of data. */
} data_t;

static void device_to_list_add(ble_gap_evt_adv_report_t const * p_adv_report)
{
uint8_t idx = 0;
uint16_t dev_name_offset = 0;
uint16_t field_len;
int i = 0;
data_t adv_data;

// Initialize advertisement report for parsing
adv_data.p_data = (uint8_t *)p_adv_report->data.p_data;
adv_data.data_len = p_adv_report->data.len;

for ( idx = 0; idx < DEVICE_TO_FIND_MAX; idx++)
{
// If address is duplicated, then return.
if (memcmp(p_adv_report->peer_addr.addr,
m_device[idx].addr,
sizeof(p_adv_report->peer_addr.addr)) == 0)
{
return;
}
}

// Device is not in the list.
for (idx = 0; idx < DEVICE_TO_FIND_MAX; idx++)
{
if (!m_device[idx].is_not_empty) // We find an empty entry
{
device_number = device_number +1;

m_device[idx].is_not_empty = true; //validating the list record

memset(m_device[idx].addr,
0,
sizeof(p_adv_report->peer_addr.addr));

memcpy(m_device[idx].addr,
p_adv_report->peer_addr.addr,
sizeof(p_adv_report->peer_addr.addr));

//###=========================================ADVERTIZED DATA SCAN SUCCESSFUL =######=========================================================###//

/*88888888888888888888888888888888888888888888888 NAME OF DEVICE IN LITERAL 888888888888888888888888888888888888888888888888888*/

//////////////////////////////////////////////////// TOTAL NO OF DEVICE //////////////////////////////////////////////////////////////
NRF_LOG_INFO("[TOTAL NUM].DEVS:%d Count\r\n",device_number);
printf("[TOTAL NUM].DEVS:%d Count\r\n",device_number);

m_device[idx].rssi = p_adv_report->rssi;
printf("[SIGNAL ].RSSI:%d dBm\r\n",m_device[idx].rssi);

///////////////////////////////////////////// SIGNAL STRENGTH INDEX ////////////////////////////////////////////////////////////////////////

/////////////////////////// APPLICATION RFID(CENTRAL) DETECTION DATA>> TAG(PHERIFERIAL) //////////////////////////////////////////////////////////////

//uint8_t * full_name_data = ble_advdata_parse(m_device[idx].data_buffer, m_device[idx].size,BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME);

uint16_t len_full_name = ble_advdata_search(m_device[idx].data_buffer,m_device[idx].size, &dev_name_offset,BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME);
memset(m_device[idx].dev_name,
0,
len_full_name);

memcpy(m_device[idx].dev_name,
&m_device[idx].data_buffer[dev_name_offset],
len_full_name);

printf("[SIGNATURE].NAME:");
for(i=0; i<len_full_name;i++)
{

printf("%c",m_device[idx].data_buffer[dev_name_offset+i]);
}
printf("\r\n");

/*88888888888888888888888888888888888888888888888 NAME OF DEVICE IN HEX 88888888888888888888888888888888888888888888888*/
printf("[HEX ID ].ADDR:");
for(i=0; i< (uint16_t)(sizeof(p_adv_report->peer_addr.addr));i++)
{
if(i==0)
{
printf("%02X",m_device[idx].addr[i]);
}
else
{
printf(":%02X",m_device[idx].addr[i]); //add colon in order to give format to address
}
}
printf("\r\n");

// ##### if you do not want to print adv data then comment #####////

m_device[idx].size = p_adv_report->data.len;

memset(m_device[idx].data_buffer,
0,
p_adv_report->data.len);
memcpy(m_device[idx].data_buffer,
p_adv_report->data.p_data,
p_adv_report->data.len);

printf("[ADV DATA ].DATA:");
for(i=0; i< p_adv_report->data.len;i++)
{
printf("%x",m_device[idx].data_buffer[i]);
}
printf("\r\n");

/* DATA */

uint8_t * aux = p_adv_report->data.p_data;
uint16_t aux_len = p_adv_report->data.len;

uint8_t aux_array[100] = {};
memcpy(aux_array,aux,aux_len);
printf("[ADV DATA ].DATA:%x\r\n",aux_array);

return;

}
}
}

void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
app_error_handler(0xDEADBEEF, line_num, p_file_name);
}

/**@brief Function for the LEDs initialization.
*
* @details Initializes all LEDs used by the application.
*/
static void leds_init(void)
{
bsp_board_init(BSP_INIT_LEDS);
}

/**@brief Function to start scanning.
*/
static void scan_start(void)
{
ret_code_t err_code;

err_code = nrf_ble_scan_start(&m_scan);
APP_ERROR_CHECK(err_code);

bsp_board_led_off(CENTRAL_CONNECTED_LED);
bsp_board_led_on(CENTRAL_SCANNING_LED);
}

/**@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;

// For readability.
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;

switch (p_ble_evt->header.evt_id)
{
// Upon connection, check which peripheral has connected (HR or RSC), initiate DB
// discovery, update LEDs status and resume scanning if necessary. */
case BLE_GAP_EVT_CONNECTED:
{
NRF_LOG_INFO("Connected.");
// err_code = ble_lbs_c_handles_assign(&m_ble_lbs_c, p_gap_evt->conn_handle, NULL);
// APP_ERROR_CHECK(err_code);
//
// err_code = ble_db_discovery_start(&m_db_disc, p_gap_evt->conn_handle);
// APP_ERROR_CHECK(err_code);

// Update LEDs status, and check if we should be looking for more
// peripherals to connect to.
bsp_board_led_on(CENTRAL_CONNECTED_LED);
bsp_board_led_off(CENTRAL_SCANNING_LED);
} break;

// Upon disconnection, reset the connection handle of the peer which disconnected, update
// the LEDs status and start scanning again.
case BLE_GAP_EVT_DISCONNECTED:
{
NRF_LOG_INFO("Disconnected.");
scan_start();
} break;

case BLE_GAP_EVT_TIMEOUT:
{
// We have not specified a timeout for scanning, so only connection attemps can timeout.
if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
{
NRF_LOG_DEBUG("Connection request timed out.");
}
} break;

case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
{
// Accept parameters requested by peer.
err_code = sd_ble_gap_conn_param_update(p_gap_evt->conn_handle,
&p_gap_evt->params.conn_param_update_request.conn_params);
APP_ERROR_CHECK(err_code);
} 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;

default:
// No implementation needed.
break;
}
}

/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupts.
*/
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 button handler module.
*
* @param[in] pin_no The pin that the event applies to.
* @param[in] button_action The button action (press/release).
*/
static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
ret_code_t err_code;

switch (pin_no)
{
case LEDBUTTON_BUTTON_PIN:
break;

default:
//APP_ERROR_HANDLER(pin_no);
break;
}
}

/**@brief Function for handling Scaning events.
*
* @param[in] p_scan_evt Scanning event.
*/
static void scan_evt_handler(scan_evt_t const * p_scan_evt)
{
ret_code_t err_code;

switch(p_scan_evt->scan_evt_id)
{
case NRF_BLE_SCAN_EVT_CONNECTING_ERROR:
err_code = p_scan_evt->params.connecting_err.err_code;
APP_ERROR_CHECK(err_code);
break;

case NRF_BLE_SCAN_EVT_NOT_FOUND:
device_to_list_add(p_scan_evt->params.p_not_found);
break;
default:
break;
}
}

/**@brief Function for initializing the button handler module.
*/
static void buttons_init(void)
{
ret_code_t err_code;

//The array must be static because a pointer to it will be saved in the button handler module.
static app_button_cfg_t buttons[] =
{
{LEDBUTTON_BUTTON_PIN, false, BUTTON_PULL, button_event_handler}
};

err_code = app_button_init(buttons, ARRAY_SIZE(buttons),
BUTTON_DETECTION_DELAY);
APP_ERROR_CHECK(err_code);
}

/**@brief Function for initializing the log.
*/
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 handling the list_timer event,
*/
static void adv_list_timer_handle(void * p_context)
{

// Print devices
scanned_device_t * p_device_list = scan_device_info_get();
device_list_print(p_device_list);

//scan_device_info_clear();
}

/**@brief Function for initializing the timer.
*/
static void timer_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);

// Timer for refreshing scanned devices data.
APP_TIMER_DEF(adv_list_timer);
err_code = app_timer_create(&adv_list_timer, APP_TIMER_MODE_REPEATED, adv_list_timer_handle);
APP_ERROR_CHECK(err_code);

err_code = app_timer_start(adv_list_timer, FOUND_DEVICE_REFRESH_TIME, NULL);
APP_ERROR_CHECK(err_code);

}

/**@brief Function for initializing the Power manager. */
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}

static void scan_init(void)
{
ret_code_t err_code;
nrf_ble_scan_init_t init_scan;

memset(&init_scan, 0, sizeof(init_scan));

init_scan.connect_if_match = false;
init_scan.conn_cfg_tag = APP_BLE_CONN_CFG_TAG;

err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler);
APP_ERROR_CHECK(err_code);

// // Setting filters for scanning.
// err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_NAME_FILTER, false);
// APP_ERROR_CHECK(err_code);
//
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_NAME_FILTER, m_target_periph_name);
APP_ERROR_CHECK(err_code);

}

/**@brief Function for initializing the GATT module.
*/
static void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
APP_ERROR_CHECK(err_code);
}

/**@brief Function for handling the idle state (main loop).
*
* @details Handle any pending log operation(s), then sleep until the next event occurs.
*/
static void idle_state_handle(void)
{
NRF_LOG_FLUSH();
nrf_pwr_mgmt_run();
}

int main(void)
{
// Initialize.
log_init();
timer_init();
leds_init();
buttons_init();
power_management_init();
ble_stack_init();
scan_init();
gatt_init();

// Start execution.
NRF_LOG_INFO("[[BLE [RFID V1.0.0] Scanner Started]] Total: %d seconds",SCAN_LIST_REFRESH_INTERVAL/1000);
scan_start();

// Turn on the LED to signal scanning.
bsp_board_led_on(CENTRAL_SCANNING_LED);

// Enter main loop.
for (;;)
{
idle_state_handle();
}
}

[shambhu]

i need help in above code to add putty/mobaxterm for mode of UART COMMUNICATION , CAN PRINT ALL DATA AT SAME TIME OF SCAN IN SERIAL. WHAT BI NEED TO MODIFY

REGARD SHAMBHU 

[shambhu]

ble_central_c actuall main.c reply base don this code. 

[shambhu]

this data i want to print seprately in putty via serial bus/uart p0.06,p0.08 uart bus or finally i want data extention via modbus .. Also guide how to add header file as app_uart.h in ble_central_c or any guide related to uart. please specifiy my pin. aslso for code ,reply as soon as possible. Above mentioned my code...???????

[shambhu]

output 

code

main.c

ble_app_blinky_c

////////////////////////////////// RFID READER V1.0.0 2024 //////////////////////////
/* */
/* R&D EMBEDDED TEAM */
/* RFID PROJECT */
/* ACTIVE RFID & ACTIVE TAG */
/* CENTRAL */
/* EMPLOYEE ID 013 */
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_soc.h"
#include "nrf_pwr_mgmt.h"
#include "app_timer.h"
#include "boards.h"
#include "bsp.h"
#include "bsp_btn_ble.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "ble_db_discovery.h"
#include "ble_lbs_c.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_scan.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

#define CENTRAL_SCANNING_LED BSP_BOARD_LED_0 /**< Scanning LED will be on when the device is scanning. */
#define CENTRAL_CONNECTED_LED BSP_BOARD_LED_1 /**< Connected LED will be on when the device is connected. */
#define LEDBUTTON_LED BSP_BOARD_LED_2 /**< LED to indicate a change of state of the the Button characteristic on the peer. */

#define SCAN_INTERVAL 0x00A0 /**< Determines scan interval in units of 0.625 millisecond. */
#define SCAN_WINDOW 0x0050 /**< Determines scan window in units of 0.625 millisecond. */
#define SCAN_DURATION 0x0000 /**< Timout when scanning. 0x0000 disables timeout. */

#define MIN_CONNECTION_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) /**< Determines minimum connection interval in milliseconds. */
#define MAX_CONNECTION_INTERVAL MSEC_TO_UNITS(30, UNIT_1_25_MS) /**< Determines maximum connection interval in milliseconds. */
#define SLAVE_LATENCY 0 /**< Determines slave latency in terms of connection events. */
#define SUPERVISION_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Determines supervision time-out in units of 10 milliseconds. */

#define LEDBUTTON_BUTTON_PIN BSP_BUTTON_0 /**< Button that will write to the LED characteristic of the peer */
#define BUTTON_DETECTION_DELAY APP_TIMER_TICKS(50) /**< Delay from a GPIOTE event until a button is reported as pushed (in number of timer ticks). */

#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. */

NRF_BLE_SCAN_DEF(m_scan); /**< Scanning module instance. */
BLE_LBS_C_DEF(m_ble_lbs_c); /**< Main structure used by the LBS client module. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
BLE_DB_DISCOVERY_DEF(m_db_disc); /**< DB discovery module instance. */

static char const m_target_periph_name[] = "(NORDIC)"; /**< Name of the device we try to connect to. This name is searched in the scan report data*/

#define SCAN_LIST_REFRESH_INTERVAL 10000 // 100 sec

static uint32_t device_number;

#define FOUND_DEVICE_REFRESH_TIME APP_TIMER_TICKS(SCAN_LIST_REFRESH_INTERVAL) /**< Time after which the device list is clean and refreshed. */

#define DEVICE_NAME_MAX_SIZE 20
#define DEVICE_TO_FIND_MAX 50

typedef struct
{
bool is_not_empty; /**< Indicates that the structure is not empty. */
uint16_t size; /**< Size of manuf data. */
uint8_t addr[BLE_GAP_ADDR_LEN]; /**< Device address. */
char dev_name[DEVICE_NAME_MAX_SIZE]; /**< Device name. */
uint8_t data_buffer[BLE_GAP_ADV_SET_DATA_SIZE_MAX]; /**< Buffer for storing an manuf data. */
uint8_t rssi ;
} scanned_device_t;

void device_list_print(scanned_device_t * p_device);

scanned_device_t m_device[DEVICE_TO_FIND_MAX]; /**< Stores device info from scan data. */

void scan_device_info_clear(void)
{
memset(m_device, 0, sizeof(m_device));
device_number = 0;
}

/**@brief Function for printing the devices.
*
*@details Function print list of devices.
*
*
* @param[in] device Pointer to the struct storing the scanned devices.
*/
void device_list_print(scanned_device_t * p_device)
{
// We could now clear the list:
scan_device_info_clear();

}

scanned_device_t * scan_device_info_get(void)
{
return m_device;

}

typedef struct
{
uint8_t * p_data; /**< Pointer to data. */
uint16_t data_len; /**< Length of data. */
} data_t;

static void device_to_list_add(ble_gap_evt_adv_report_t const * p_adv_report)
{
uint8_t idx = 0;
uint16_t dev_name_offset = 0;
uint16_t field_len;
int i = 0;
data_t adv_data;

// Initialize advertisement report for parsing
adv_data.p_data = (uint8_t *)p_adv_report->data.p_data;
adv_data.data_len = p_adv_report->data.len;

for ( idx = 0; idx < DEVICE_TO_FIND_MAX; idx++)
{
// If address is duplicated, then return.
if (memcmp(p_adv_report->peer_addr.addr,
m_device[idx].addr,
sizeof(p_adv_report->peer_addr.addr)) == 0)
{
return;
}
}

// Device is not in the list.
for (idx = 0; idx < DEVICE_TO_FIND_MAX; idx++)
{
if (!m_device[idx].is_not_empty) // We find an empty entry
{
device_number = device_number +1;

m_device[idx].is_not_empty = true; //validating the list record

memset(m_device[idx].addr,
0,
sizeof(p_adv_report->peer_addr.addr));

memcpy(m_device[idx].addr,
p_adv_report->peer_addr.addr,
sizeof(p_adv_report->peer_addr.addr));

//###=========================================ADVERTIZED DATA SCAN SUCCESSFUL =######=========================================================###//

/*88888888888888888888888888888888888888888888888 NAME OF DEVICE IN LITERAL 888888888888888888888888888888888888888888888888888*/

//////////////////////////////////////////////////// TOTAL NO OF DEVICE //////////////////////////////////////////////////////////////
NRF_LOG_INFO("[TOTAL NUM].DEVS:%d Count\r\n",device_number);
printf("[TOTAL NUM].DEVS:%d Count\r\n",device_number);

m_device[idx].rssi = p_adv_report->rssi;
printf("[SIGNAL ].RSSI:%d dBm\r\n",m_device[idx].rssi);

///////////////////////////////////////////// SIGNAL STRENGTH INDEX ////////////////////////////////////////////////////////////////////////

/////////////////////////// APPLICATION RFID(CENTRAL) DETECTION DATA>> TAG(PHERIFERIAL) //////////////////////////////////////////////////////////////

//uint8_t * full_name_data = ble_advdata_parse(m_device[idx].data_buffer, m_device[idx].size,BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME);

uint16_t len_full_name = ble_advdata_search(m_device[idx].data_buffer,m_device[idx].size, &dev_name_offset,BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME);
memset(m_device[idx].dev_name,
0,
len_full_name);

memcpy(m_device[idx].dev_name,
&m_device[idx].data_buffer[dev_name_offset],
len_full_name);

printf("[SIGNATURE].NAME:");
for(i=0; i<len_full_name;i++)
{

printf("%c",m_device[idx].data_buffer[dev_name_offset+i]);
}
printf("\r\n");

/*88888888888888888888888888888888888888888888888 NAME OF DEVICE IN HEX 88888888888888888888888888888888888888888888888*/
printf("[HEX ID ].ADDR:");
for(i=0; i< (uint16_t)(sizeof(p_adv_report->peer_addr.addr));i++)
{
if(i==0)
{
printf("%02X",m_device[idx].addr[i]);
}
else
{
printf(":%02X",m_device[idx].addr[i]); //add colon in order to give format to address
}
}
printf("\r\n");

// ##### if you do not want to print adv data then comment #####////

m_device[idx].size = p_adv_report->data.len;

memset(m_device[idx].data_buffer,
0,
p_adv_report->data.len);
memcpy(m_device[idx].data_buffer,
p_adv_report->data.p_data,
p_adv_report->data.len);

printf("[ADV DATA ].DATA:");
for(i=0; i< p_adv_report->data.len;i++)
{
printf("%x",m_device[idx].data_buffer[i]);
}
printf("\r\n");

/* DATA */

uint8_t * aux = p_adv_report->data.p_data;
uint16_t aux_len = p_adv_report->data.len;

uint8_t aux_array[100] = {};
memcpy(aux_array,aux,aux_len);
printf("[ADV DATA ].DATA:%x\r\n",aux_array);

return;

}
}
}

void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
app_error_handler(0xDEADBEEF, line_num, p_file_name);
}

/**@brief Function for the LEDs initialization.
*
* @details Initializes all LEDs used by the application.
*/
static void leds_init(void)
{
bsp_board_init(BSP_INIT_LEDS);
}

/**@brief Function to start scanning.
*/
static void scan_start(void)
{
ret_code_t err_code;

err_code = nrf_ble_scan_start(&m_scan);
APP_ERROR_CHECK(err_code);

bsp_board_led_off(CENTRAL_CONNECTED_LED);
bsp_board_led_on(CENTRAL_SCANNING_LED);
}

/**@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;

// For readability.
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;

switch (p_ble_evt->header.evt_id)
{
// Upon connection, check which peripheral has connected (HR or RSC), initiate DB
// discovery, update LEDs status and resume scanning if necessary. */
case BLE_GAP_EVT_CONNECTED:
{
NRF_LOG_INFO("Connected.");
// err_code = ble_lbs_c_handles_assign(&m_ble_lbs_c, p_gap_evt->conn_handle, NULL);
// APP_ERROR_CHECK(err_code);
//
// err_code = ble_db_discovery_start(&m_db_disc, p_gap_evt->conn_handle);
// APP_ERROR_CHECK(err_code);

// Update LEDs status, and check if we should be looking for more
// peripherals to connect to.
bsp_board_led_on(CENTRAL_CONNECTED_LED);
bsp_board_led_off(CENTRAL_SCANNING_LED);
} break;

// Upon disconnection, reset the connection handle of the peer which disconnected, update
// the LEDs status and start scanning again.
case BLE_GAP_EVT_DISCONNECTED:
{
NRF_LOG_INFO("Disconnected.");
scan_start();
} break;

case BLE_GAP_EVT_TIMEOUT:
{
// We have not specified a timeout for scanning, so only connection attemps can timeout.
if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
{
NRF_LOG_DEBUG("Connection request timed out.");
}
} break;

case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
{
// Accept parameters requested by peer.
err_code = sd_ble_gap_conn_param_update(p_gap_evt->conn_handle,
&p_gap_evt->params.conn_param_update_request.conn_params);
APP_ERROR_CHECK(err_code);
} 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;

default:
// No implementation needed.
break;
}
}

/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupts.
*/
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 button handler module.
*
* @param[in] pin_no The pin that the event applies to.
* @param[in] button_action The button action (press/release).
*/
static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
ret_code_t err_code;

switch (pin_no)
{
case LEDBUTTON_BUTTON_PIN:
break;

default:
//APP_ERROR_HANDLER(pin_no);
break;
}
}

/**@brief Function for handling Scaning events.
*
* @param[in] p_scan_evt Scanning event.
*/
static void scan_evt_handler(scan_evt_t const * p_scan_evt)
{
ret_code_t err_code;

switch(p_scan_evt->scan_evt_id)
{
case NRF_BLE_SCAN_EVT_CONNECTING_ERROR:
err_code = p_scan_evt->params.connecting_err.err_code;
APP_ERROR_CHECK(err_code);
break;

case NRF_BLE_SCAN_EVT_NOT_FOUND:
device_to_list_add(p_scan_evt->params.p_not_found);
break;
default:
break;
}
}

/**@brief Function for initializing the button handler module.
*/
static void buttons_init(void)
{
ret_code_t err_code;

//The array must be static because a pointer to it will be saved in the button handler module.
static app_button_cfg_t buttons[] =
{
{LEDBUTTON_BUTTON_PIN, false, BUTTON_PULL, button_event_handler}
};

err_code = app_button_init(buttons, ARRAY_SIZE(buttons),
BUTTON_DETECTION_DELAY);
APP_ERROR_CHECK(err_code);
}

/**@brief Function for initializing the log.
*/
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 handling the list_timer event,
*/
static void adv_list_timer_handle(void * p_context)
{

// Print devices
scanned_device_t * p_device_list = scan_device_info_get();
device_list_print(p_device_list);

//scan_device_info_clear();
}

/**@brief Function for initializing the timer.
*/
static void timer_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);

// Timer for refreshing scanned devices data.
APP_TIMER_DEF(adv_list_timer);
err_code = app_timer_create(&adv_list_timer, APP_TIMER_MODE_REPEATED, adv_list_timer_handle);
APP_ERROR_CHECK(err_code);

err_code = app_timer_start(adv_list_timer, FOUND_DEVICE_REFRESH_TIME, NULL);
APP_ERROR_CHECK(err_code);

}

/**@brief Function for initializing the Power manager. */
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}

static void scan_init(void)
{
ret_code_t err_code;
nrf_ble_scan_init_t init_scan;

memset(&init_scan, 0, sizeof(init_scan));

init_scan.connect_if_match = false;
init_scan.conn_cfg_tag = APP_BLE_CONN_CFG_TAG;

err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler);
APP_ERROR_CHECK(err_code);

// // Setting filters for scanning.
// err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_NAME_FILTER, false);
// APP_ERROR_CHECK(err_code);
//
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_NAME_FILTER, m_target_periph_name);
APP_ERROR_CHECK(err_code);

}

/**@brief Function for initializing the GATT module.
*/
static void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
APP_ERROR_CHECK(err_code);
}

/**@brief Function for handling the idle state (main loop).
*
* @details Handle any pending log operation(s), then sleep until the next event occurs.
*/
static void idle_state_handle(void)
{
NRF_LOG_FLUSH();
nrf_pwr_mgmt_run();
}

int main(void)
{
// Initialize.
log_init();
timer_init();
leds_init();
buttons_init();
power_management_init();
ble_stack_init();
scan_init();
gatt_init();

// Start execution.
NRF_LOG_INFO("[[BLE [RFID V1.0.0] Scanner Started]] Total: %d seconds",SCAN_LIST_REFRESH_INTERVAL/1000);
scan_start();

// Turn on the LED to signal scanning.
bsp_board_led_on(CENTRAL_SCANNING_LED);

// Enter main loop.
for (;;)
{
idle_state_handle();
}
}

[shambhu]

[#BASIC PROBLEM 1]: GUIDE  I NEED TO PRINT SAME OUTPUT IN PUTTY PLEASE REPLY //NORDIC NRF52832 DK BOARD SDK15.3.0           PCA10040V 3.0.0 

C:\nRF5_SDK_15.3.0_59ac345\examples\New folder\ble_app_blinky_c_SCANNER\pca10040\s132\ses

DOING PROGRAMMING IN SEGGER EMBEDDED STUDIO PLATFORM 

REPLY TO SOVE MY #BASIC PROBLEM

THANKS IN ADV..

[shambhu]

ble_app_pheferal // how to advatize uuid and custom device name

how to modify existing main.c code for tag /ibeacon [#basic problem 2]

/* RFID PROJECT 20/04/2024 - V1.0.0 ACTIVE TAG
* Copyright (c) 2014 - 2019, Nordic Semiconductor ASA
* All rights reserved.
*/
/** @file
* @defgroup ble_sdk_app_beacon_main main.c
* @ingroup ble_sdk_app_beacon
* @brief Beacon Transmitter Sample Application main file.
* This file contains the source code for an Beacon transmitter sample application.
*/

#include <stdbool.h>
#include <stdint.h>
#include "nordic_common.h"
#include "bsp.h"
#include "nrf_soc.h"
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "ble_advdata.h"
#include "app_timer.h"
#include "nrf_pwr_mgmt.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */

#define DEVICE_NAME "SIT-BEACON_1"

#define NON_CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(100, UNIT_0_625_MS) /**< The advertising interval for non-connectable advertisement (100 ms). This value can vary between 100ms to 10.24s). */

#define APP_BEACON_INFO_LENGTH 0x17 /**< Total length of information advertised by the Beacon. */
#define APP_ADV_DATA_LENGTH 0x15 /**< Length of manufacturer specific data in the advertisement. */
#define APP_DEVICE_TYPE 0x02 /**< 0x02 refers to Beacon. */
#define APP_MEASURED_RSSI 0xC3 /**< The Beacon's measured RSSI at 1 meter distance in dBm. */
#define APP_COMPANY_IDENTIFIER 0x0059 /**< Company identifier for Nordic Semiconductor ASA. as per www.bluetooth.org. */
#define APP_MAJOR_VALUE 0x01, 0x02 /**< Major value used to identify Beacons. */
#define APP_MINOR_VALUE 0x03, 0x04 /**< Minor value used to identify Beacons. */

//USER DEFINE >> UUID ONLINE GENERATOR>> 90edf9ce-5c1b-4b0c-8e15-872ea3ebcac7

#define APP_BEACON_UUID 0x90, 0xed, 0xf9, 0xce, \
0x5c, 0x1b, 0x4b, 0x0c, \
0x8e, 0x15, 0x87, 0x2e, \
0xa3, 0xeb, 0xca, 0xc7 /**< Proprietary UUID for Beacon. */

#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */

#if defined(USE_UICR_FOR_MAJ_MIN_VALUES)
#define MAJ_VAL_OFFSET_IN_BEACON_INFO 18 /**< Position of the MSB of the Major Value in m_beacon_info array. */
#define UICR_ADDRESS 0x10001080 /**< Address of the UICR register used by this example. The major and minor versions to be encoded into the advertising data will be picked up from this location. */
#endif

static ble_gap_adv_params_t m_adv_params; /**< Parameters to be passed to the stack when starting advertising. */
static uint8_t m_adv_handle = BLE_GAP_ADV_SET_HANDLE_NOT_SET; /**< Advertising handle used to identify an advertising set. */
static uint8_t m_enc_advdata[BLE_GAP_ADV_SET_DATA_SIZE_MAX]; /**< Buffer for storing an encoded advertising set. */

/**@brief Struct that contains pointers to the encoded advertising data. */
static ble_gap_adv_data_t m_adv_data =
{
.adv_data =
{
.p_data = m_enc_advdata,
.len = BLE_GAP_ADV_SET_DATA_SIZE_MAX
},
.scan_rsp_data =
{
.p_data = NULL,
.len = 0

}
};

static uint8_t m_beacon_info[APP_BEACON_INFO_LENGTH] = /**< Information advertised by the Beacon. */
{
APP_DEVICE_TYPE, // Manufacturer specific information. Specifies the device type in this
// implementation.
APP_ADV_DATA_LENGTH, // Manufacturer specific information. Specifies the length of the
// manufacturer specific data in this implementation.
APP_BEACON_UUID, // 128 bit UUID value.
APP_MAJOR_VALUE, // Major arbitrary value that can be used to distinguish between Beacons.
APP_MINOR_VALUE, // Minor arbitrary value that can be used to distinguish between Beacons.
APP_MEASURED_RSSI, // Manufacturer specific information. The Beacon's measured TX power in
// this implementation.
};

/**@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 Function for initializing the Advertising functionality.
*
* @details Encodes the required advertising data and passes it to the stack.
* Also builds a structure to be passed to the stack when starting advertising.
*/
static void advertising_init(void)
{
uint32_t err_code;
ble_advdata_t advdata;
uint8_t flags = BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED;

ble_advdata_manuf_data_t manuf_specific_data;

manuf_specific_data.company_identifier = APP_COMPANY_IDENTIFIER;

#if defined(USE_UICR_FOR_MAJ_MIN_VALUES)
// If USE_UICR_FOR_MAJ_MIN_VALUES is defined, the major and minor values will be read from the
// UICR instead of using the default values. The major and minor values obtained from the UICR
// are encoded into advertising data in big endian order (MSB First).
// To set the UICR used by this example to a desired value, write to the address 0x10001080
// using the nrfjprog tool. The command to be used is as follows.
// nrfjprog --snr <Segger-chip-Serial-Number> --memwr 0x10001080 --val <your major/minor value>
// For example, for a major value and minor value of 0xabcd and 0x0102 respectively, the
// the following command should be used.
// nrfjprog --snr <Segger-chip-Serial-Number> --memwr 0x10001080 --val 0xabcd0102
uint16_t major_value = ((*(uint32_t *)UICR_ADDRESS) & 0xFFFF0000) >> 16;
uint16_t minor_value = ((*(uint32_t *)UICR_ADDRESS) & 0x0000FFFF);

uint8_t index = MAJ_VAL_OFFSET_IN_BEACON_INFO;

m_beacon_info[index++] = MSB_16(major_value);
m_beacon_info[index++] = LSB_16(major_value);

m_beacon_info[index++] = MSB_16(minor_value);
m_beacon_info[index++] = LSB_16(minor_value);
#endif

manuf_specific_data.data.p_data = (uint8_t *) m_beacon_info;
manuf_specific_data.data.size = APP_BEACON_INFO_LENGTH;

// Build and set advertising data.
memset(&advdata, 0, sizeof(advdata));

advdata.name_type = BLE_ADVDATA_NO_NAME;
advdata.flags = flags;
advdata.p_manuf_specific_data = &manuf_specific_data;

// Initialize advertising parameters (used when starting advertising).
memset(&m_adv_params, 0, sizeof(m_adv_params));

m_adv_params.properties.type = BLE_GAP_ADV_TYPE_NONCONNECTABLE_NONSCANNABLE_UNDIRECTED;
m_adv_params.p_peer_addr = NULL; // Undirected advertisement.
m_adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
m_adv_params.interval = NON_CONNECTABLE_ADV_INTERVAL;
m_adv_params.duration = 0; // Never time out.

err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
APP_ERROR_CHECK(err_code);

err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &m_adv_params);
APP_ERROR_CHECK(err_code);
}

/**@brief Function for starting advertising. */
static void advertising_start(void)
{
ret_code_t err_code;

err_code = sd_ble_gap_adv_start(m_adv_handle, APP_BLE_CONN_CFG_TAG);
APP_ERROR_CHECK(err_code);

err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
}

/**@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);
}

/**@brief Function for initializing logging. */
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 LEDs. */
static void leds_init(void)
{
ret_code_t err_code = bsp_init(BSP_INIT_LEDS, NULL);
APP_ERROR_CHECK(err_code);
}

/**@brief Function for initializing timers. */
static void timers_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}

/**@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);
}

static void idle_state_handle(void)
{
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}

int main(void)
{
// Initialize.
log_init();
timers_init();
leds_init();
power_management_init();
ble_stack_init();
advertising_init();

// Start execution.
NRF_LOG_INFO("Beacon/Tag started.");
advertising_start();

// Enter main loop.
for (;; )
{
idle_state_handle();
}
}

[shambhu]

[#basic problem 2]  how to add device name in advertizing data can you modify the code as mentioned above or guide me Nrf52832 pc10040 v3.0.0 provide some video link to understand clear.