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mikroSDK Library

tRF Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.17

mikroSDK Library: 2.0.0.0

Category: Sub-1 GHz Transceivers

Downloaded: 183 times

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License: MIT license  

tRF Click is a complete short-range RF communication solution, operating in the 868 MHz ISM license-free frequency band. The Click board™ is based on LE70-868 RF module, from Telit.

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  • mikroSDK Library 1.0.0.0
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tRF Click

tRF Click is a complete short-range RF communication solution, operating in the 868 MHz ISM license-free frequency band. The Click board™ is based on LE70-868 RF module, from Telit.

trf_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : Jan 2020.
  • Type : UART type

Software Support

We provide a library for the Trf 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 Trf Click driver.

Standard key functions :

  • Config Object Initialization function.

    void trf_cfg_setup ( trf_cfg_t *cfg );

  • Initialization function.

    TRF_RETVAL trf_init ( trf_t ctx, trf_cfg_t cfg );

  • Click Default Configuration function.

    void trf_default_cfg ( trf_t *ctx );

Example key functions :

  • Generic single read function.

    trf_data_t trf_generic_single_read ( trf_t *ctx );

  • Generic single write function.

    void trf_generic_single_write ( trf_t *ctx, trf_data_t tx_data );

  • Generic multi write function.

    void trf_generic_multi_write ( trf_t ctx, trf_data_t data_buf, uart_length_t len );

Examples Description

This is a example which demonstrates the use of Trf Click board.

The demo application is composed of two sections :

Application Init

Configuring clicks and log objects.


void application_init ( void )
{
    log_cfg_t log_cfg;
    trf_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_printf( &logger, "---- Application Init ----\r\n" );

    //  Click initialization.

    trf_cfg_setup( &cfg );
    TRF_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    trf_init( &trf, &cfg );
}

Application Task

Checks if new data byte have received in rx buffer (ready for reading), and if ready than reads one byte from rx buffer. In second case aplication task writes message data via UART.


void application_task ( void )
{
    trf_data_t tmp;
    uint8_t cnt;

#ifdef DEMO_APP_RECEIVER

    // RECEIVER - UART polling

    tmp =  trf_generic_single_read( &trf );
    log_printf( &logger, " %c ", tmp );

#endif
#ifdef DEMO_APP_TRANSMITER

    // TRANSMITER - TX each 2 sec

    for ( cnt = 0; cnt < 9; cnt ++ )
    {
        trf_generic_single_write( &trf, demo_message[ cnt ] );
        Delay_ms ( 100 );
    }

    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

#endif
}

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.Trf

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.


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