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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.13
mikroSDK Library: 2.0.0.0
Category: WIFI
Downloaded: 359 times
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License: MIT license
WiFi ESP Click carries the ESP-WROOM-02 module that integrates ESP8266EX.
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DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
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4270_wifi_esp_click.zip [533.04KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for dsPIC XC16 |
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WiFi ESP Click carries the ESP-WROOM-02 module that integrates ESP8266EX.
We provide a library for the WifiEsp 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.
This library contains API for WifiEsp Click driver.
wifiesp_cfg_setup
Config Object Initialization function.
void wifiesp_cfg_setup ( wifiesp_cfg_t *cfg );
wifiesp_init
Initialization function.
err_t wifiesp_init ( wifiesp_t *ctx, wifiesp_cfg_t *cfg );
wifiesp_default_cfg
Click Default Configuration function.
void wifiesp_default_cfg ( wifiesp_t *ctx );
wifiesp_send_cmd
Sends AT command to the module.
void wifiesp_send_cmd( wifiesp_t* ctx, uint8_t* cmd, uint8_t* args );
wifiesp_generic_write
Generic write function.
void wifiesp_generic_write ( wifiesp_t *ctx, char *data_buf, uint16_t len );
wifiesp_generic_read
Generic read function.
int32_t wifiesp_generic_read ( wifiesp_t *ctx, char *data_buf, int32_t max_len );
This example connects to the desired WiFi network and then creates web server on the IP address assigned to the Click board. The user can connect to the server via web browser.
The demo application is composed of two sections :
Initializes driver and wifi communication, then connects to the desired WiFi network and creates web server on the IP address assigned to the Click board.
void application_init ( void )
{
log_cfg_t log_cfg;
wifiesp_cfg_t cfg;
/**
* 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.
wifiesp_cfg_setup( &cfg );
WIFIESP_MAP_MIKROBUS( cfg, MIKROBUS_1 );
wifiesp_init( &wifiesp, &cfg );
wifiesp_default_cfg( &wifiesp );
Delay_ms ( 1000 );
// Communication initialization
wifi_communication_init( );
uint16_to_str ( strlen( page ), page_len );
wifiesp_str_cut_chr ( page_len, ' ' );
log_info( &logger, "Please connect to the IP address listed above.\r\n" );
}
Waits for the client request (paste IP address in your web browser and refresh to send a request). The Click board will respond by sending a page content to the client.
void application_task ( void )
{
if ( WIFIESP_OK == wifiesp_rsp_check( WIFIESP_RECEIVE ) )
{
link_id[ 0 ] = *( strstr( app_buf, WIFIESP_RECEIVE ) + 5 );
strcpy ( send_buf, link_id );
strcat ( send_buf, "," );
strcat ( send_buf, page_len );
wifiesp_str_cut_chr ( send_buf, ' ' );
wifiesp_log_app_buf( );
wifiesp_clear_app_buf( );
Delay_ms ( 100 );
wifiesp_process( );
wifiesp_log_app_buf( );
wifiesp_send_cmd( &wifiesp, WIFIESP_SEND, send_buf );
app_error_flag = wifiesp_rsp_check( WIFIESP_RSP_READY_FOR_SEND );
wifiesp_log_app_buf( );
Delay_ms ( 100 );
wifiesp_generic_write( &wifiesp, page, strlen( page ) );
app_error_flag = wifiesp_rsp_check( WIFIESP_RSP_SEND_OK );
wifiesp_error_check( app_error_flag );
wifiesp_send_cmd( &wifiesp, WIFIESP_CLOSE, link_id );
app_error_flag = wifiesp_rsp_check( WIFIESP_RSP_OK );
wifiesp_error_check( app_error_flag );
wifiesp_clear_app_buf( );
wifiesp_process( );
wifiesp_log_app_buf( );
wifiesp_clear_app_buf( );
uart_clear ( &wifiesp.uart );
Delay_ms ( 100 );
}
}
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:
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.