rfid2  2.0.0.0
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RFID 2 click

RFID 2 Click is a compact add-on board that contains a stand-alone RFID reader with a built-in antenna easy-to-use for embedded applications. This board features the ID-12LA-SA, an advanced low-cost RFID reader module usable with 38 different tags from ID Innovations.

click Product page


Click library

  • Author : Jelena Milosavljevic
  • Date : Aug 2021.
  • Type : UART type

Software Support

We provide a library for the RFID2 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 from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for RFID2 Click driver.

Standard key functions :

Example key functions :

  • rfid2_generic_write This function writes a desired number of data bytes by using UART serial interface.
    err_t rfid2_generic_write ( rfid2_t *ctx, char *data_buf, uint16_t len );
  • rfid2_generic_read This function reads a desired number of data bytes by using UART serial interface.
    err_t rfid2_generic_read ( rfid2_t *ctx, char *data_buf, uint16_t max_len );
  • rfid2_reset This function resets the chip.
    void rfid2_reset( rfid2_t *ctx );

Example Description

This example reads and processes data from RFID 2 clicks.

The demo application is composed of two sections :

Application Init

Initializes UART module and sets RST pin as OUTPUT and INT pin as INPUT. Also, initializes Driver init and reset chip.

void application_init ( void ) {
log_cfg_t log_cfg;
rfid2_cfg_t rfid2_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
rfid2_cfg_setup( &rfid2_cfg );
RFID2_MAP_MIKROBUS( rfid2_cfg, MIKROBUS_1 );
err_t init_flag = rfid2_init( &rfid2, &rfid2_cfg );
if ( UART_ERROR == init_flag ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
Delay_ms( 100 );
rfid2_reset( &rfid2 );
Delay_ms( 100 );
app_buf_len = 0;
app_buf_cnt = 0;
log_info( &logger, " Application Task " );
log_printf( &logger, "*** Please, put your ID card.***\r\n" );
log_printf( &logger, "*** ID card :\r\n" );
}

Application Task

Reads the ID card (HEX) and logs data on the USBUART-a.

void application_task ( void ) {
app_buf_len = rfid2_generic_read( &rfid2, app_buf, PROCESS_BUFFER_SIZE );
if ( app_buf_len > 0 ) {
log_printf( &logger, "%s", app_buf );
memset( app_buf, 0, PROCESS_BUFFER_SIZE );
}
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.RFID2

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. UART terminal is available in all MikroElektronika compilers.


rfid2_t
RFID 2 Click context object.
Definition: rfid2.h:96
rfid2_generic_read
err_t rfid2_generic_read(rfid2_t *ctx, char *data_buf, uint16_t max_len)
RFID 2 data reading function.
rfid2_init
err_t rfid2_init(rfid2_t *ctx, rfid2_cfg_t *cfg)
RFID 2 initialization function.
RFID2_MAP_MIKROBUS
#define RFID2_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: rfid2.h:83
application_task
void application_task(void)
Definition: main.c:96
PROCESS_BUFFER_SIZE
#define PROCESS_BUFFER_SIZE
Definition: main.c:29
rfid2_reset
void rfid2_reset(rfid2_t *ctx)
RFID 2 reset chip function.
rfid2_generic_write
err_t rfid2_generic_write(rfid2_t *ctx, char *data_buf, uint16_t len)
RFID 2 data writing function.
application_init
void application_init(void)
Definition: main.c:58
rfid2_cfg_t
RFID 2 Click configuration object.
Definition: rfid2.h:117
rfid2_cfg_setup
void rfid2_cfg_setup(rfid2_cfg_t *cfg)
RFID 2 configuration object setup function.