ble4  2.0.0.0
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BLE 4 click

BLE 4 Click is fully embedded stand-alone Bluetooth 5.0 low energy connectivity module, equipped with the NINA-B312, an ultra-small, high-performing, standalone Bluetooth low energy module for easy integration of Bluetooth low energy connectivity (BLE) into various electronic devices. This module combines a high-performance Arm® Cortex®-M4 CPU microprocessor with FPU, and state-of-the-art power performance.

click Product page


Click library

  • Author : MikroE Team
  • Date : Jun 2020.
  • Type : UART GPS/GNSS type

Software Support

We provide a library for the BLE4 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for BLE4 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void ble4_cfg_setup ( ble4_cfg_t *cfg );

  • Initialization function.

    BLE4_RETVAL ble4_init ( ble4_t *ctx, ble4_cfg_t *cfg );

Example key functions :

  • This function allows user to reset a module.

    void ble4_reset ( ble4_t *ctx );

Examples Description

This example reads and processes data from BLE 4 clicks.

The demo application is composed of two sections :

Application Init

Initializes driver and wake-up module.

void application_init ( void )
{
log_cfg_t log_cfg;
// Logger initialization.
LOG_MAP_USB_UART( log_cfg );
log_cfg.level = LOG_LEVEL_DEBUG;
log_cfg.baud = 115200;
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
ble4_cfg_setup( &cfg );
BLE4_MAP_MIKROBUS( cfg, MIKROBUS_1 );
ble4_init( &ble4, &cfg );
ble4_reset( &ble4 );
Delay_1sec( );
log_printf( &logger, "Configuring the module...\n" );
Delay_1sec( );
ble4_set_dsr_pin( &ble4, 1 );
Delay_ms( 20 );
do {
ble4_set_echo_cmd( &ble4, 1 );
Delay_100ms( );
}
while( ble4_process( ) != 1 );
do {
ble4_set_local_name_cmd( &ble4, "BLE 4 Click" );
Delay_100ms( );
}
while( ble4_process( ) != 1 );
do {
Delay_100ms( );
}
while( ble4_process( ) != 1 );
do {
Delay_100ms( );
}
while( ble4_process( ) != 1 );
do {
Delay_100ms( );
}
while( ble4_process( ) != 1 );
ble4_set_dsr_pin( &ble4, 0 );
Delay_ms( 20 );
data_mode = 1;
log_printf( &logger, "The module has been configured.\n" );
}

Application Task

Reads the received data and parses it.

void application_task ( void )
{
ble4_process( );
}
void main ( void )
{
for ( ; ; )
{
}
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.BLE4

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


ble4_discoverability_en_cmd
void ble4_discoverability_en_cmd(ble4_t *ctx, uint8_t discover_mode)
Discoverability Mode Setting command.
ble4_set_local_name_cmd
void ble4_set_local_name_cmd(ble4_t *ctx, char *local_name)
Local Name Setting command.
ble4_cfg_setup
void ble4_cfg_setup(ble4_cfg_t *cfg)
Config Object Initialization function.
BLE4_DATA_MODE
#define BLE4_DATA_MODE
Definition: ble4.h:100
ble4_set_dsr_pin
void ble4_set_dsr_pin(ble4_t *ctx, uint8_t state)
Set DSR Pin function.
application_task
void application_task(void)
Definition: main.c:174
ble4_set_echo_cmd
void ble4_set_echo_cmd(ble4_t *ctx, uint8_t echo_en)
Echo On/Off command.
BLE4_MAP_MIKROBUS
#define BLE4_MAP_MIKROBUS(cfg, mikrobus)
Definition: ble4.h:52
ble4_cfg_t
Click configuration structure definition.
Definition: ble4.h:198
ble4_connectability_en_cmd
void ble4_connectability_en_cmd(ble4_t *ctx, uint8_t conn_mode)
Connectability Mode Setting command.
ble4_init
BLE4_RETVAL ble4_init(ble4_t *ctx, ble4_cfg_t *cfg)
Initialization function.
ble4_enter_mode_cmd
void ble4_enter_mode_cmd(ble4_t *ctx, uint8_t mode)
Enter Data Mode command.
BLE4_GAP_CONNECTABLE_MODE
#define BLE4_GAP_CONNECTABLE_MODE
Definition: ble4.h:140
application_init
void application_init(void)
Definition: main.c:110
main
void main(void)
Definition: main.c:179
ble4_reset
void ble4_reset(ble4_t *ctx)
Reset function.
BLE4_GAP_GENERAL_DISCOVERABLE_MODE
#define BLE4_GAP_GENERAL_DISCOVERABLE_MODE
Definition: ble4.h:149