ismrx2  2.1.0.0
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ISM RX 2 click

ISM RX 2 Click is a compact add-on board that contains a pin configurable, low current, sub-GHz EZRadio® receiver. This board features the Si4356, a standalone Sub-GHz RF receiver IC, from Silicon Labs, which provides a true plug-and-play receive option.

click Product page


Click library

  • Author : Stefan Ilic
  • Date : Feb 2023.
  • Type : GPIO type

Software Support

We provide a library for the ISM RX 2 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 ISM RX 2 Click driver.

Standard key functions :

Example key functions :

Example Description

This application shows capability of ISM RX 2 Click board.

The demo application is composed of two sections :

Application Init

Initialize GPIO pins and LOG module and sets default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
ismrx2_cfg_t ismrx2_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
ismrx2_cfg_setup( &ismrx2_cfg );
ISMRX2_MAP_MIKROBUS( ismrx2_cfg, MIKROBUS_1 );
if ( DIGITAL_OUT_UNSUPPORTED_PIN == ismrx2_init( &ismrx2, &ismrx2_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( ISMRX2_ERROR == ismrx2_default_cfg ( &ismrx2 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Wait for the data pin to go down and start sampling and wait for sync word if it's received

collect data to buffer till it receives 0 byte

void application_task ( void )
{
#ifdef DEFAULT_EXAMPLE
{
if ( ISMRX2_OK == ismrx2_read_rf_data( &ismrx2, read_data ) )
{
log_printf( &logger, " RX data: " );
for ( uint8_t n_cnt = 0; n_cnt < strlen( read_data ); n_cnt++ )
{
if ( read_data[ n_cnt ] != '\0' )
{
log_printf( &logger, "%c", read_data[ n_cnt ] );
}
}
log_printf( &logger, "\r\n*********************\r\n" );
Delay_ms( 10 );
}
}
#endif
#ifdef MANCHESTER_EXAMPLE
{
if ( ISMRX2_OK == ismrx2_read_manchester_data( &ismrx2, &read_data ) )
{
log_printf( &logger, " Read data: " );
for ( uint8_t n_cnt = 1; n_cnt < strlen( read_data ); n_cnt++ )
{
log_printf( &logger, "%c", read_data[ n_cnt ] );
}
log_printf( &logger, "\r\n*********************\r\n" );
Delay_ms( 10 );
}
}
#endif
}

Note

Application task is broken down into two parts:

DEFAULT_EXAMPLE - Collects data from the OOK TX Click board and displays it on the USB UART terminal. MANCHESTER_EXAMPLE - Collects Manchester encoded data from the ISM TX Click board, decodes it and displays it on the USB UART terminal.

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.ISMRX2

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.


ISMRX2_ERROR
@ ISMRX2_ERROR
Definition: ismrx2.h:127
ismrx2_read_rf_data
err_t ismrx2_read_rf_data(ismrx2_t *ctx, uint8_t *data_out)
ISM RX 2 read data function.
ISMRX2_MAP_MIKROBUS
#define ISMRX2_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: ismrx2.h:84
ismrx2_get_data_pin_state
uint8_t ismrx2_get_data_pin_state(ismrx2_t *ctx)
ISM RX 2 get state of DATA pin function.
ismrx2_t
ISM RX 2 Click context object.
Definition: ismrx2.h:98
ismrx2_init
err_t ismrx2_init(ismrx2_t *ctx, ismrx2_cfg_t *cfg)
ISM RX 2 initialization function.
ismrx2_cfg_setup
void ismrx2_cfg_setup(ismrx2_cfg_t *cfg)
ISM RX 2 configuration object setup function.
ISMRX2_PIN_STATE_LOW
#define ISMRX2_PIN_STATE_LOW
Definition: ismrx2.h:63
ismrx2_read_manchester_data
err_t ismrx2_read_manchester_data(ismrx2_t *ctx, uint8_t *data_out)
ISM RX 2 read manchester encoded data function.
application_task
void application_task(void)
Definition: main.c:74
ismrx2_default_cfg
err_t ismrx2_default_cfg(ismrx2_t *ctx)
ISM RX 2 default configuration function.
ismrx2_cfg_t
ISM RX 2 Click configuration object.
Definition: ismrx2.h:112
ISMRX2_OK
@ ISMRX2_OK
Definition: ismrx2.h:126
application_init
void application_init(void)
Definition: main.c:40