WiFi 9 Click
WiFi 9 Click is fully embedded stand-alone Wi-Fi module, equipped with the PAN9420 a 2.4 GHz ISM band Wi-Fi-embedded module which includes a wireless radio and an MCU for easy integration of Wi-Fi connectivity into various electronic devices.
Click Product page
Click library
- Author : MikroE Team
- Date : Jun 2020.
- Type : UART type
Software Support
We provide a library for the Wifi9 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 Wifi9 Click driver.
Standard key functions :
wifi9_cfg_setup
Config Object Initialization function.
wifi9_init
Initialization function.
Example key functions :
wifi9_select_uart
Switch to a command or binary uart
wifi9_reset_device
Module reset.
wifi9_send_command
Send Command function.
Examples Description
This application showcases capability of the WiFi 9 Click board.
It initializes device, connects to local WiFi. Creates TCP server, waits for connection, and logs every message it receives from clients and returns back those messages as an echo response.
The demo application is composed of two sections :
Application Init
Initializes driver and wifi communication, then connects to the desired WiFi network
and creates TCP server on the IP address assigned to the Click board.
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
wifi9_process( );
wifi9_clear_app_buf( );
log_printf( &logger, "---------------------\r\n" );
log_printf( &logger, "---- System Info ----\r\n" );
log_printf( &logger, "---------------------\r\n" );
wifi9_log_app_buf( );
wifi9_log_app_buf( );
wifi9_log_app_buf( );
wifi9_log_app_buf( );
wifi9_log_app_buf( );
wifi9_log_app_buf( );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, "---- Start NETCAT app ----\r\n" );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, "\r\nSet Station to ON status: " );
wifi9_log_app_buf( );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
log_printf( &logger, "\r\nSet Station SSID and PASSWORD: " );
strcat( app_buf, " \"" );
strcat( app_buf, "\" \"" );
strcat( app_buf, "\" 4" );
wifi9_log_app_buf( );
Delay_ms ( 500 );
log_printf( &logger, "\r\nTurn ON - Netcat module: " );
wifi9_log_app_buf( );
Delay_ms ( 500 );
log_printf( &logger, "\r\nExclude Netcat authentication: " );
wifi9_log_app_buf( );
Delay_ms ( 500 );
log_printf( &logger, "\r\nSet the Netcat module server port: " );
strcat( app_buf, " " );
wifi9_log_app_buf( );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
log_printf( &logger, "\r\nWaiting for an IP address assignment from DHCP server...\r\n" );
for ( ; ; )
{
log_printf( &logger, "\r\nGet IP address: " );
wifi9_log_app_buf( );
if ( !strstr ( app_buf, "0.0.0.0" ) )
{
break;
}
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
}
wifi9_clear_app_buf( );
Delay_ms ( 1000 );
log_printf( &logger, "\r\nNow you can connect to the TCP server listed above via a TCP client app\r\n" );
log_printf( &logger, "The module is transferred to BIN-UART - for data collection\r\n" );
log_info( &logger, " Application Task " );
Delay_ms ( 1000 );
}
Application Task
All data received from the TCP clients will be logger to USB UART and echoed back to the clients.
{
wifi9_process( );
if ( app_buf_len )
{
wifi9_log_app_buf( );
wifi9_clear_app_buf( );
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:
- MikroSDK.Board
- MikroSDK.Log
- Click.Wifi9
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.