使用Ai-WB2-12F和PIC18F57Q43在项目中添加WiFi和BLE无线连接

支持IEEE 802.11b/g/n和BLE 5.0协议的多协议WiFi和蓝牙模块解决方案

Ai-WB2-12F Click with Curiosity Nano with PIC18F57Q43

已发布 6月 24, 2024

点击板

Ai-WB2-12F Click

开发板

Curiosity Nano with PIC18F57Q43

编译器

NECTO Studio

微控制器单元

PIC18F57Q43

实现无线WiFi和BLE技术的轻松集成，同时具备高级安全性和能源效率，非常适合开发智能设备和物联网应用。

硬件概览

它是如何工作的？

Ai-WB2-12F Click基于Ai-Thinker Technology的Ai-WB2-12F，这是一个WiFi和BLE模块。在其核心是BL602芯片，作为主要处理器。该芯片为模块提供了对WiFi 802.11b/g/n和BLE 5.0协议的支持，具有低功耗32位RISC CPU、276KB RAM以及一系列外围接口，如SDIO、SPI、UART、I2C、IR Remote、PWM、ADC、DAC、PIR和GPIO等。它的设计旨在广泛应用于物联网（IoT）、可穿戴技术、智能家居解决方案等领域。在附加规格方面，该模块具有内置的PCB天线，覆盖了2400到2483.5MHz的频率范围，以及广泛的WiFi安全协议，包括WPS、WEP、WPA、WPA2 Personal、WPA2 Enterprise和WPA3。它

还支持BLE 5.0和蓝牙Mesh，各种操作模式，如Station + BLE和Station + SoftAP + BLE，具有ECC-256签名镜像的安全启动、用于128/192/256位密钥的AES加密引擎、真随机数生成器和用于广泛的加密操作的公钥加速器。该模块支持各种睡眠模式，具有仅12μA的深度睡眠电流，并允许使用通用AT命令进行简单设置。至于板的连接特性，这个Click板™采用UART接口与主机MCU通信，使用标准的UART RX和TX引脚来交换AT命令。默认情况下，它以115200bps的波特率进行通信。此外，该Click板™还配备了一个USB-C连接器，可通过PC进行直接供电和配置。该板还通过与mikroBUS™插座的EN引脚连接的R5电阻（默认情况下未装

载R5电阻）实现了复位功能，具有用于模块启用的EN按钮以及用于固件编程的PROG按钮。RGB二极管用作状态指示器，红色表示IO14的活动IO引脚，绿色表示IO17，蓝色表示IO3。根据用户的需求，这些引脚可以适应各种用途，如SPI、PWM或ADC。可用户配置的IO引脚默认不可用。如果需要使用，请联系Ai-Thinker。此Click板™只能使用3.3V逻辑电压电平。在使用具有不同逻辑电平的MCU之前，板必须执行适当的逻辑电压电平转换。此外，它配备了一个包含函数和示例代码的库，可用作进一步开发的参考。

Ai-WB2-12F Click hardware overview image

功能概述

开发板

PIC18F57Q43 Curiosity Nano 评估套件是一款尖端的硬件平台，旨在评估 PIC18-Q43 系列内的微控制器。其设计的核心是包含了功能强大的 PIC18F57Q43 微控制器（MCU），提供先进的功能和稳健的性能。这个评估套件的关键特点包括一个黄色用户 LED 和一个响应灵敏的机械用户开关，提供无

缝的交互和测试。为一个 32.768kHz 水晶振荡器足迹提供支持，确保精准的定时能力。套件内置的调试器拥有一个绿色电源和状态 LED，使编程和调试变得直观高效。此外，增强其实用性的还有虚拟串行端口（CDC）和一个调试 GPIO 通道（DGI GPIO），提供广泛的连接选项。该套件通过 USB 供电，拥有由

MIC5353 LDO 调节器提供支持的可调目标电压功能，确保在 1.8V 至 5.1V 的输出电压范围内稳定运行，最大输出电流为 500mA，受环境温度和电压限制。

PIC18F57Q43 Curiosity Nano double side image

微控制器概述

MCU卡片 / MCU

建筑

PIC

MCU 内存 (KB)

128

硅供应商

Microchip

引脚数

RAM (字节)

8196

你完善了我！

配件

Curiosity Nano Base for Click boards 是一款多功能硬件扩展平台，专为简化 Curiosity Nano 套件与扩展板之间的集成而设计，特别针对符合 mikroBUS™ 标准的 Click 板和 Xplained Pro 扩展板。这款创新的基板（屏蔽板）提供了无缝的连接和扩展可能性，简化了实验和开发过程。主要特点包括从 Curiosity Nano 套件提供 USB 电源兼容性，以及为增强灵活性而提供的另一种外部电源输入选项。板载锂离子/锂聚合物充电器和管理电路确保电池供电应用的平稳运行，简化了使用和管理。此外，基板内置了一个固定的 3.3V 电源供应单元，专用于目标和 mikroBUS™ 电源轨，以及一个固定的 5.0V 升压转换器，专供 mikroBUS™ 插座的 5V 电源轨，为各种连接设备提供稳定的电力供应。

Curiosity Nano Base for Click boards accessories 1 image

使用的MCU引脚

mikroBUS™映射器

Module Enable / Reset

PA7

RST

ID COMM

PD4

SCK

MISO

MOSI

Power Supply

3.3V

Ground

GND

PWM

INT

UART TX

PC3

UART RX

PC2

SCL

SDA

Ground

GND

“仔细看看！”

Click board™ 原理图

一步一步来

项目组装

Curiosity Nano Base for Click boards front image hardware assembly

从选择您的开发板和Click板™开始。以Curiosity Nano with PIC18F57Q43作为您的开发板开始。

Charger 27 Click front image hardware assembly

PIC18F47Q10 Curiosity Nano front image hardware assembly

Curiosity Nano with PICXXX Access MB 1 - upright/background hardware assembly

PIC18F57Q43 Curiosity MCU Step hardware assembly

Necto No Display image step 8 hardware assembly

Debug Image Necto Step hardware assembly

实时跟踪您的结果

应用程序输出

1. 应用程序输出 - 在调试模式下，“应用程序输出”窗口支持实时数据监控，直接提供执行结果的可视化。请按照提供的教程正确配置环境，以确保数据正确显示。

2. UART 终端 - 使用UART Terminal通过USB to UART converter监视数据传输，实现Click board™与开发系统之间的直接通信。请根据项目需求配置波特率和其他串行设置，以确保正常运行。有关分步设置说明，请参考提供的教程。

3. Plot 输出 - Plot功能提供了一种强大的方式来可视化实时传感器数据，使趋势分析、调试和多个数据点的对比变得更加直观。要正确设置，请按照提供的教程，其中包含使用Plot功能显示Click board™读数的分步示例。在代码中使用Plot功能时，请使用以下函数：plot(insert_graph_name, variable_name);。这是一个通用格式，用户需要将“insert_graph_name”替换为实际图表名称，并将“variable_name”替换为要显示的参数。

软件支持

库描述

该库包含 Ai-WB2-12F Click 驱动程序的 API。

关键功能:

aiwb212f_send_cmd - Ai-WB2-12F发送命令功能
aiwb212f_send_cmd_with_par - Ai-WB2-12F带参数发送命令功能
aiwb212f_send_cmd_check - Ai-WB2-12F发送命令检查功能

开源

代码示例

完整的应用程序代码和一个现成的项目可以通过NECTO Studio包管理器直接安装到NECTO Studio。应用程序代码也可以在MIKROE的GitHub账户中找到。

/*!
 * @file main.c
 * @brief Ai-WB2-12F Click Example.
 *
 * # Description
 * This example demonstrates the use of Ai-WB2-12F click board by processing
 * the incoming data and displaying them on the USB UART.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes the driver, tests the communication, and after that restarts the device, and performs example configuration.
 *
 * ## Application Task
 * Depending on the selected demo example, it sends a TCP/UDP echo server message and receives it or 
 * creates BLE Client which receives the messages from the connected device.
 *
 * ## Additional Function
 * - static void aiwb212f_clear_app_buf ( void )
 * - static void aiwb212f_log_app_buf ( void )
 * - static err_t aiwb212f_process ( aiwb212f_t *ctx )
 * - static void aiwb212f_rsp_check ( void )
 * - static void aiwb212f_error_check ( void )
 * - static void aiwb212f_configure_for_example ( void )
 * - static void aiwb212f_example ( void )
 *
 * @note
 * We have used the BLE Scanner Android application for the BLE Example test
 * and you can find it at the link:
 * https://play.google.com/store/apps/details?id=com.macdom.ble.blescanner
 *
 * @author Stefan Ilic
 *
 */

#include "board.h"
#include "log.h"
#include "aiwb212f.h"

// Example selection macros
#define EXAMPLE_TCP_UDP                     0               // Example of sending messages to a TCP/UDP echo server
#define EXAMPLE_BLE                         1               // BLE Example
#define DEMO_EXAMPLE                        EXAMPLE_TCP_UDP // Example selection macro

// Message content
#define MESSAGE_CONTENT                     "Ai-WB2-12F click board - demo example."
#define MESSAGE_LEN                         "40"

// TCP/UDP example parameters
#define REMOTE_IP                           "77.46.162.162" // TCP/UDP echo server IP address
#define REMOTE_PORT                         "51111"         // TCP/UDP echo server port

// WiFi parameters
#define WIFI_SSID                           "MikroE Public"
#define WIFI_PWD                            "mikroe.guest"

// GPIO parameters
#define LED_RED_GPIO                        "5"
#define LED_GREEN_GPIO                      "6"
#define LED_BLUE_GPIO                       "7"

// Application buffer size
#define APP_BUFFER_SIZE                     200
#define PROCESS_BUFFER_SIZE                 200

static aiwb212f_t aiwb212f;
static log_t logger;
static err_t error_flag;

static uint8_t app_buf[ APP_BUFFER_SIZE ] = { 0 };
static int32_t app_buf_len = 0;

/**
 * @brief Ai-WB2-12F clearing application buffer.
 * @details This function clears memory of application buffer and reset its length.
 * @note None.
 */
static void aiwb212f_clear_app_buf ( void );

/**
 * @brief Ai-WB2-12F log application buffer.
 * @details This function logs data from application buffer to USB UART.
 * @note None.
 */
static void aiwb212f_log_app_buf ( void );

/**
 * @brief Ai-WB2-12F data reading function.
 * @details This function reads data from device and concatenates data to application buffer. 
 * @return @li @c  0 - Read some data.
 *         @li @c -1 - Nothing is read.
 * See #err_t definition for detailed explanation.
 * @note None.
 */
static err_t aiwb212f_process ( void );

/**
 * @brief Response check.
 * @details This function checks for response and
 * returns the status of response.
 * @param[in] rsp  Expected response.
 * @return @li @c  0 - OK response.
 *         @li @c -1 - Error response.
 *         @li @c -2 - Timeout error.
 *         @li @c -3 - Unknown error.
 * See #err_t definition for detailed explanation.
 */
static err_t aiwb212f_rsp_check ( uint8_t *rsp );

/**
 * @brief Check for errors.
 * @details This function checks for different types of
 * errors and logs them on UART or logs the response if no errors occured.
 * @param[in] error_flag  Error flag to check.
 */
static void aiwb212f_error_check ( err_t error_flag );

/**
 * @brief Ai-WB2-12F configure for example function.
 * @details This function is used to configure device for example.
 */
static void aiwb212f_configure_for_example ( void );

/**
 * @brief Ai-WB2-12F execute example function.
 * @details This function executes TCP/UDP or BLE example depending on the DEMO_EXAMPLE macro.
 */
static void aiwb212f_example ( void );

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    aiwb212f_cfg_t aiwb212f_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    aiwb212f_cfg_setup( &aiwb212f_cfg );
    AIWB212F_MAP_MIKROBUS( aiwb212f_cfg, MIKROBUS_1 );
    if ( UART_ERROR == aiwb212f_init( &aiwb212f, &aiwb212f_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    aiwb212f_process( );
    aiwb212f_clear_app_buf( );

    aiwb212f_hw_reset( &aiwb212f );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_READY );
    aiwb212f_error_check( error_flag );

    // Check communication
    aiwb212f_send_cmd( &aiwb212f, AIWB212F_CMD_AT );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    // Restart device
    aiwb212f_send_cmd( &aiwb212f, AIWB212F_CMD_AT_SW_RESET );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_READY );
    aiwb212f_error_check( error_flag );

    aiwb212f_configure_for_example( );

    log_info( &logger, " Application Task " );
}

void application_task ( void ) 
{
    aiwb212f_example( );
}

void main ( void ) 
{
    application_init( );

    for ( ; ; ) 
    {
        application_task( );
    }
}

static void aiwb212f_clear_app_buf ( void ) 
{
    memset( app_buf, 0, app_buf_len );
    app_buf_len = 0;
}

static void aiwb212f_log_app_buf ( void )
{
    for ( int32_t buf_cnt = 0; buf_cnt < app_buf_len; buf_cnt++ )
    {
        log_printf( &logger, "%c", app_buf[ buf_cnt ] );
    }
}

static err_t aiwb212f_process ( void ) 
{
    uint8_t rx_buf[ PROCESS_BUFFER_SIZE ] = { 0 };
    int32_t overflow_bytes = 0;
    int32_t rx_cnt = 0;
    int32_t rx_size = aiwb212f_generic_read( &aiwb212f, rx_buf, PROCESS_BUFFER_SIZE );
    if ( ( rx_size > 0 ) && ( rx_size <= APP_BUFFER_SIZE ) ) 
    {
        if ( ( app_buf_len + rx_size ) > APP_BUFFER_SIZE ) 
        {
            overflow_bytes = ( app_buf_len + rx_size ) - APP_BUFFER_SIZE;
            app_buf_len = APP_BUFFER_SIZE - rx_size;
            memmove ( app_buf, &app_buf[ overflow_bytes ], app_buf_len );
            memset ( &app_buf[ app_buf_len ], 0, overflow_bytes );
        }
        for ( rx_cnt = 0; rx_cnt < rx_size; rx_cnt++ ) 
        {
            if ( rx_buf[ rx_cnt ] ) 
            {
                app_buf[ app_buf_len++ ] = rx_buf[ rx_cnt ];
            }
        }
        return AIWB212F_OK;
    }
    return AIWB212F_ERROR;
}

static err_t aiwb212f_rsp_check ( uint8_t *rsp )
{
    uint32_t timeout_cnt = 0;
    uint32_t timeout = 120000;
    aiwb212f_clear_app_buf( );
    aiwb212f_process( );
    while ( ( 0 == strstr( app_buf, rsp ) ) &&
            ( 0 == strstr( app_buf, AIWB212F_RSP_ERROR ) ) )
    {
        aiwb212f_process( );
        if ( timeout_cnt++ > timeout )
        {
            aiwb212f_clear_app_buf( );
            return AIWB212F_ERROR_TIMEOUT;
        }
        Delay_ms( 1 );
    }
    Delay_ms( 100 );
    aiwb212f_process( );
    if ( strstr( app_buf, rsp ) )
    {
        return AIWB212F_OK;
    }
    else if ( strstr( app_buf, AIWB212F_RSP_ERROR ) )
    {
        return AIWB212F_ERROR_CMD;
    }
    else
    {
        return AIWB212F_ERROR_UNKNOWN;
    }
}

static void aiwb212f_error_check ( err_t error_flag )
{
    #define LED_STATE_ON        "1"
    #define LED_STATE_OFF       "0"
    uint8_t command_data[ 10 ] = { 0 };
    
    switch ( error_flag )
    {
        case AIWB212F_OK:
        {
            aiwb212f_log_app_buf( );
            break;
        }
        case AIWB212F_ERROR:
        {
            log_error( &logger, " Overflow!" );

            aiwb212f_set_gpio( &aiwb212f, LED_RED_GPIO, LED_STATE_ON );
            Delay_ms( 500 );
            aiwb212f_set_gpio( &aiwb212f, LED_RED_GPIO, LED_STATE_OFF );
            break;
        }
        case AIWB212F_ERROR_TIMEOUT:
        {
            log_error( &logger, " Timeout!" );

            aiwb212f_set_gpio( &aiwb212f, LED_RED_GPIO, LED_STATE_ON );
            Delay_ms( 500 );
            aiwb212f_set_gpio( &aiwb212f, LED_RED_GPIO, LED_STATE_OFF );
            break;
        }
        case AIWB212F_ERROR_CMD:
        {
            log_error( &logger, " CMD!" );

            aiwb212f_set_gpio( &aiwb212f, LED_RED_GPIO, LED_STATE_ON );
            Delay_ms( 500 );
            aiwb212f_set_gpio( &aiwb212f, LED_RED_GPIO, LED_STATE_OFF );
            break;
        }
        case AIWB212F_ERROR_UNKNOWN:
        default:
        {
            log_error( &logger, " Unknown!" );

            aiwb212f_set_gpio( &aiwb212f, LED_RED_GPIO, LED_STATE_ON );
            Delay_ms( 500 );
            aiwb212f_set_gpio( &aiwb212f, LED_RED_GPIO, LED_STATE_OFF );
            break;
        }
    }
    log_printf( &logger, "- - - - - - - - - - - - - - - -\r\n" );
    Delay_ms( 500 );
}

static void aiwb212f_configure_for_example ( void )
{
#if ( EXAMPLE_TCP_UDP == DEMO_EXAMPLE )

    #define WIFI_MODE           "1,0"
    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_WMODE, WIFI_MODE );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    // Connect to WiFi
    #define WIFI_CONNECTED      "+EVENT:WIFI_GOT_IP"
    uint8_t wifi_data[ 50 ] = { 0 };
    strcpy( wifi_data, WIFI_SSID );
    strcat( wifi_data, "," );
    strcat( wifi_data, WIFI_PWD );
    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_WJAP, wifi_data );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    error_flag = aiwb212f_rsp_check( WIFI_CONNECTED );
    aiwb212f_error_check( error_flag );

#elif ( EXAMPLE_BLE == DEMO_EXAMPLE )

    #define DEVICE_NAME         "Ai-WB2-12F Click"
    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_BLENAME, DEVICE_NAME );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_BLEMODE, "0" );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag ); 

    #define DEVICE_CONNECT      "+EVENT:BLE_CONNECT"
    log_printf( &logger, "  Please connect your device\r\n" );
    do
    {
        aiwb212f_process(); 
        aiwb212f_set_gpio( &aiwb212f, LED_BLUE_GPIO, LED_STATE_ON );
        Delay_ms( 500 );
        aiwb212f_set_gpio( &aiwb212f, LED_BLUE_GPIO, LED_STATE_OFF );
    }
    while ( !strstr( app_buf, DEVICE_CONNECT ) );
    Delay_ms( 100 );
    aiwb212f_clear_app_buf( );
    log_printf( &logger, "- - - - - - - - - - - - - - - -\r\n" );

#else
    #error "No demo example selected"
#endif
}

static void aiwb212f_example ( void )
{
#if ( EXAMPLE_TCP_UDP == DEMO_EXAMPLE )
    uint8_t command_data[ APP_BUFFER_SIZE ] = { 0 };
    #define TCP_CLIENT          "4"
    #define UDP_CLIENT          "2"
    #define CON_ID              "1"
    #define KEEP_ALIVE          "1"

    aiwb212f_set_gpio( &aiwb212f, LED_BLUE_GPIO, LED_STATE_ON );
    Delay_ms( 500 );
    aiwb212f_set_gpio( &aiwb212f, LED_BLUE_GPIO, LED_STATE_OFF );

    log_printf( &logger, " TCP Example \r\n" );
    log_printf( &logger, "- - - - - - - - - - - - - - - -\r\n" );

    strcpy( command_data, TCP_CLIENT );
    strcat( command_data, "," );
    strcat( command_data, REMOTE_IP );
    strcat( command_data, "," );
    strcat( command_data, REMOTE_PORT );
    strcat( command_data, "," );
    strcat( command_data, KEEP_ALIVE );
    strcat( command_data, "," );
    strcat( command_data, CON_ID );
    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_SOCKET, command_data );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    aiwb212f_send_cmd_check( &aiwb212f, AIWB212F_CMD_AT_SOCKET );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    strcpy( command_data, CON_ID );
    strcat( command_data, "," );
    strcat( command_data, MESSAGE_LEN );
    strcat( command_data, "," );
    strcat( command_data, MESSAGE_CONTENT );
    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_SOCKETSENDLINE, command_data );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_SOCKETREAD, CON_ID );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_SOCKETDEL, CON_ID );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    aiwb212f_set_gpio( &aiwb212f, LED_BLUE_GPIO, LED_STATE_ON );
    Delay_ms( 500 );
    aiwb212f_set_gpio( &aiwb212f, LED_BLUE_GPIO, LED_STATE_OFF );

    // UDP mode doesn't support read function
    log_printf( &logger, " UDP Example \r\n" );
    log_printf( &logger, "- - - - - - - - - - - - - - - -\r\n" );

    strcpy( command_data, UDP_CLIENT );
    strcat( command_data, "," );
    strcat( command_data, REMOTE_IP );
    strcat( command_data, "," );
    strcat( command_data, REMOTE_PORT );
    strcat( command_data, "," );
    strcat( command_data, KEEP_ALIVE );
    strcat( command_data, "," );
    strcat( command_data, CON_ID );
    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_SOCKET, command_data );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    aiwb212f_send_cmd_check( &aiwb212f, AIWB212F_CMD_AT_SOCKET );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    strcpy( command_data, CON_ID );
    strcat( command_data, "," );
    strcat( command_data, MESSAGE_LEN );
    strcat( command_data, "," );
    strcat( command_data, MESSAGE_CONTENT );
    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_SOCKETSENDLINE, command_data );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    aiwb212f_send_cmd_with_par( &aiwb212f, AIWB212F_CMD_AT_SOCKETDEL, CON_ID );
    error_flag = aiwb212f_rsp_check( AIWB212F_RSP_OK );
    aiwb212f_error_check( error_flag );

    Delay_ms( 5000 );
    Delay_ms( 5000 );

#elif ( EXAMPLE_BLE == DEMO_EXAMPLE )
    aiwb212f_process();
    
    if ( app_buf_len > 0 ) 
    { 
        log_printf( &logger, "%s", app_buf );
        aiwb212f_clear_app_buf(  );    
    }

#else
    #error "No demo example selected"
#endif
}

// ------------------------------------------------------------------------ END