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mikroSDK Library

M-BUS RF 4 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.15

mikroSDK Library: 2.0.0.0

Category: Sub-1 GHz Transceivers

Downloaded: 182 times

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License: MIT license  

M-BUS RF 4 Click is a mikroBUS™ add-on board with a MIPOT 32001324 RF wireless transceiver. This module operates in the 868 MHz SRD Band. Thanks to its small LCC form factor (15 x 25 mm only) and its low power consumption this module allows the implementation of highly integrated low power (battery operated) solutions for water, gas, heat or electricity metering applications, both on meter or concentrator devices.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


M-BUS RF 4 Click

M-BUS RF 4 Click is a mikroBUS™ add-on board with a MIPOT 32001324 RF wireless transceiver. This module operates in the 868 MHz SRD Band. Thanks to its small LCC form factor (15 x 25 mm only) and its low power consumption this module allows the implementation of highly integrated low power (battery operated) solutions for water, gas, heat or electricity metering applications, both on meter or concentrator devices.

mbusrf4_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : Jun 2020.
  • Type : UART GPS/GNSS type

Software Support

We provide a library for the MBusRf4 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 MBusRf4 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void mbusrf4_cfg_setup ( mbusrf4_cfg_t *cfg );

  • Initialization function.

    MBUSRF4_RETVAL mbusrf4_init ( mbusrf4_t ctx, mbusrf4_cfg_t cfg );

Example key functions :

  • Header and checksum are calculated and sent at the beginning (header) and finally (checksum)

    void mbusrf4_send_command ( mbusrf4_t ctx, uint8_t command, uint8_t length, uint8_t payload_buff );

  • This function write specific number of data.

    void mbusrf4_generic_write ( mbusrf4_t ctx, char data_buf, uint16_t len )

  • This function read data of maximum length.

    uint16_t mbusrf4_generic_read ( mbusrf4_t ctx, char data_buf, uint16_t max_len );

Examples Description

This example reads and processes data from M-BUS RF 4 clicks.

The demo application is composed of two sections :

Application Init

Initializes driver init, reads basic information and checks communication


void application_init ( void )
{
    log_cfg_t log_cfg;
    mbusrf4_cfg_t cfg;

    uint8_t payload_buff[ 20 ] = { 0 };

    /** 
     * 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.

    mbusrf4_cfg_setup( &cfg );
    MBUSRF4_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    mbusrf4_init( &mbusrf4, &cfg );

    parser_cnt = 0;
    parser_ptr = &parser_buf[ 0 ];
    mbusrf4_process( );
    mbrusrf4_clear_buff();

    //Command SET mode
    payload_buff[ 0 ] = MBUSRF4_SET_VALUE_IN_EEPROM_MEMORY;
    payload_buff[ 1 ] = MBUSRF4_EEPARAM_WMBUS_MODE_S2_SHORT_PREAMBLE;

    mbusrf4_send_command( &mbusrf4, MBUSRF4_CMD_SET_MODE, 2, &payload_buff[ 0 ] );
    Delay_ms ( 500 );
    mbusrf4_process( );
    mbusrf4_parser_tx();
    mbrusrf4_clear_buff();

    // Reads FW version
    mbusrf4_send_command( &mbusrf4, MBUSRF4_CMD_GET_FW_VERSION, 0, &payload_buff[ 0 ] );
    Delay_ms ( 500 );
    mbusrf4_process( );
    log_info( &logger, "FW version:" );
    mbusrf4_parser_rx( LOG_HEX );
    log_printf( &logger, "-----------------------------------------------------------\r\n" );
    mbusrf4_process( );

    Delay_ms ( 1000 );
    log_info( &logger, "Application Task" );
}

Application Task

In the RX mode it is waiting to receive data from another module... In the TX mode sends the data packet....


void application_task ( void )
{
    // RX App mode
    #ifdef DEMO_APP_RECEIVER

    if ( mbusrf4_get_state_ind( &mbusrf4 ) == 0 )
    {     
        Delay_ms ( 100 );
        mbusrf4_process( );

        mbusrf4_parser_rx( LOG_STR );
    }

    #endif

    // TX App Mode
    #ifdef DEMO_APP_TRANSMITER

    mbusrf4_transmit_data( &mbusrf4, msg, 17 );
    Delay_ms ( 100 );
    mbrusrf4_clear_buff();
    mbusrf4_parser_tx();
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    #endif
}

Note

Additional Function

mbusrf4_process ( ) - The general process of collecting data and adding it to application buffer;

mbrusrf4_clear_buff ( void ) - Clear application buffer data;

mbusrf4_parser_tx ( void ) - Transmit data status parser;

mbusrf4_parser_rx ( uint8_t logg_type ) - Receiver data parser;

mbusrf4_log_data ( uint8_t log_type, uint8_t *log_buf, int32_t log_len ) - Log application buffer;

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.MBusRf4

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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