mbusrf4  2.0.0.0
Main Page

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.

click Product page


Click library

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 :

Example key functions :

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;
uint8_t payload_buff[ 20 ] = { 0 };
// Logger initialization.
LOG_MAP_USB_UART( log_cfg );
log_cfg.level = LOG_LEVEL_DEBUG;
log_cfg.baud = 115200;
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
MBUSRF4_MAP_MIKROBUS( cfg, MIKROBUS_1 );
mbusrf4_init( &mbusrf4, &cfg );
mbusrf4_process( );
//Command SET mode
mbusrf4_send_command( &mbusrf4, MBUSRF4_CMD_SET_MODE, 2, &payload_buff[ 0 ] );
mbusrf4_process( );
Delay_ms( 1500 );
// Reads FW version
mbusrf4_send_command( &mbusrf4, MBUSRF4_CMD_GET_FW_VERSION, 0, &payload_buff[ 0 ] );
log_printf( &logger, " ------ FW Version ------ \r\n" );
mbusrf4_process( );
log_printf( &logger, " ------------------------ \r\n" );
Delay_ms( 3000 );
// Read EEPROM parameter
payload_buff[ 0 ] = MBUSRF4_EEADDR_WMBUS_C_FIELD;
payload_buff[ 1 ] = 0x01;
mbusrf4_send_command( &mbusrf4, MBUSRF4_CMD_EEPROM_READ, 2, payload_buff );
log_printf( &logger, " ------ EEPROM READ ------ \r\n" );
mbusrf4_process( );
log_printf( &logger, " ------------------------- \r\n" );
Delay_ms( 3000 );
}

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
log_printf ( &logger, " ----- NEW - RX DATA ---- \r\n" );
mbusrf4_process( );
log_printf ( &logger, " ------------------------ \r\n" );
#endif
// TX App Mode
#ifdef DEMO_APP_TRANSMITER
log_printf ( &logger, " ----- SEND - TX DATA ---- \r\n" );
mbusrf4_process( );
log_printf ( &logger, " ------------------------ \r\n" );
Delay_ms( 1500 );
#endif
}

Note

Additional Function

  • mbusrf4_process ( ) - The general process of collecting presponce that sends a module.

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:

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.