lr11868mhz  2.1.0.0
Main Page

LR 11 868MHz click

LR 11 Click - 868MHz is a compact add-on board for long-range, low-power wireless communication in IoT applications. This board features the 453-00140R, an ultra-low power LoraWAN module Ezurio (part of the RM126x series), integrating the Silicon Labs EFR32 SoC and the Semtech SX1261 radio. It supports LoRaWAN classes A, B, and C, offering secure, scalable, and bi-directional communication. It operates in the 863-870MHz frequency range with a typical transmit power of up to 14dBm and a communication range of up to 15km.

click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Jul 2024.
  • Type : UART type

Software Support

We provide a library for the LR 11 868MHz 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 LR 11 868MHz Click driver.

Standard key functions :

Example key functions :

  • lr11868mhz_reset_device This function resets the device by toggling the reset pin logic state.
  • lr11868mhz_cmd_run This function sends a specified command with or without parameters to the click module.
    void lr11868mhz_cmd_run ( lr11868mhz_t *ctx, uint8_t *cmd, uint8_t *param );
  • lr11868mhz_cmd_set This function sets a value to a specified command parameter of the click module.
    void lr11868mhz_cmd_set ( lr11868mhz_t *ctx, uint8_t *cmd, uint8_t *param_id, uint8_t *value );

Example Description

This example demonstrates the use of LR 11 868MHz click board by showing the communication between two click boards configured in P2P network mode.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger.

void application_init ( void )
{
log_cfg_t log_cfg;
lr11868mhz_cfg_t lr11868mhz_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
lr11868mhz_cfg_setup( &lr11868mhz_cfg );
LR11868MHZ_MAP_MIKROBUS( lr11868mhz_cfg, MIKROBUS_1 );
if ( UART_ERROR == lr11868mhz_init( &lr11868mhz, &lr11868mhz_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
app_state = LR11868MHZ_POWER_UP;
log_printf( &logger, ">>> APP STATE - POWER UP <<<\r\n\n" );
}

Application Task

Application task is split in few stages:

  • LR11868MHZ_POWER_UP:

    Powers up the device, performs a device factory reset and reads system information.

  • LR11868MHZ_CONFIG_EXAMPLE:

    Configures device for the LoRa P2P network mode.

  • LR11868MHZ_EXAMPLE:

    Performs a LoRa P2P example by exchanging messages with another LR 11 868MHz click board. One device should be set to NODE_0_ADDRESS, and the other to NODE_1_ADDRESS.

void application_task ( void )
{
switch ( app_state )
{
{
if ( LR11868MHZ_OK == lr11868mhz_power_up( &lr11868mhz ) )
{
log_printf( &logger, ">>> APP STATE - CONFIG EXAMPLE <<<\r\n\n" );
}
break;
}
{
if ( LR11868MHZ_OK == lr11868mhz_config_example( &lr11868mhz ) )
{
app_state = LR11868MHZ_EXAMPLE;
log_printf( &logger, ">>> APP STATE - EXAMPLE <<<\r\n\n" );
}
break;
}
{
lr11868mhz_example( &lr11868mhz );
break;
}
default:
{
log_error( &logger, " APP STATE." );
break;
}
}
}

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.LR11868MHz

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.


LR11868MHZ_POWER_UP
@ LR11868MHZ_POWER_UP
Definition: main.c:67
lr11868mhz_t
LR 11 868MHz Click context object.
Definition: lr11868mhz.h:240
lr11868mhz_cfg_setup
void lr11868mhz_cfg_setup(lr11868mhz_cfg_t *cfg)
LR 11 868MHz configuration object setup function.
application_task
void application_task(void)
Definition: main.c:184
LR11868MHZ_CONFIG_EXAMPLE
@ LR11868MHZ_CONFIG_EXAMPLE
Definition: main.c:68
lr11868mhz_init
err_t lr11868mhz_init(lr11868mhz_t *ctx, lr11868mhz_cfg_t *cfg)
LR 11 868MHz initialization function.
LR11868MHZ_OK
@ LR11868MHZ_OK
Definition: lr11868mhz.h:288
lr11868mhz_reset_device
void lr11868mhz_reset_device(lr11868mhz_t *ctx)
LR 11 868MHz reset device function.
lr11868mhz_cfg_t
LR 11 868MHz Click configuration object.
Definition: lr11868mhz.h:263
LR11868MHZ_MAP_MIKROBUS
#define LR11868MHZ_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: lr11868mhz.h:225
lr11868mhz_cmd_run
void lr11868mhz_cmd_run(lr11868mhz_t *ctx, uint8_t *cmd, uint8_t *param)
LR 11 868MHz cmd run function.
application_init
void application_init(void)
Definition: main.c:151
lr11868mhz_cmd_set
void lr11868mhz_cmd_set(lr11868mhz_t *ctx, uint8_t *cmd, uint8_t *param_id, uint8_t *value)
LR 11 868MHz cmd set function.
LR11868MHZ_EXAMPLE
@ LR11868MHZ_EXAMPLE
Definition: main.c:69