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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.2
mikroSDK Library: 2.0.0.0
Category: LoRa
Downloaded: 38 times
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License: MIT license
LR 6 Click is a compact add-on board designed for ultra-long-distance spread-spectrum communication. This board features the Ra-01S, a LoRa™ wireless radio frequency module from Ai-Thinker Technology, featuring the SX1268 radio chip. This module provides exceptional sensitivity of over -148dBm, a power output of +22dBm, and supports multiple modulation methods, including LoRa™, within the 433MHz frequency band. The board offers robust anti-interference capabilities and low power consumption, making it ideal for applications requiring reliable long-range communication.
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LR 6 Click is a compact add-on board designed for ultra-long-distance spread-spectrum communication. This board features the Ra-01S, a LoRa™ wireless radio frequency module from Ai-Thinker Technology, featuring the SX1268 radio chip. This module provides exceptional sensitivity of over -148dBm, a power output of +22dBm, and supports multiple modulation methods, including LoRa™, within the 433MHz frequency band. The board offers robust anti-interference capabilities and low power consumption, making it ideal for applications requiring reliable long-range communication.
We provide a library for the LR 6 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.
This library contains API for LR 6 Click driver.
lr6_cfg_setup
Config Object Initialization function.
void lr6_cfg_setup ( lr6_cfg_t *cfg );
lr6_init
Initialization function.
err_t lr6_init ( lr6_t *ctx, lr6_cfg_t *cfg );
lr6_default_cfg
Click Default Configuration function.
err_t lr6_default_cfg ( lr6_t *ctx );
lr6_send_data
This function sends a desired number of data bytes to the buffer by using the selected mode using the SPI serial interface.
err_t lr6_send_data ( lr6_t *ctx, uint8_t *send_data, uint8_t len, uint8_t mode );
lr6_receive_data
This function receives a desired number of data bytes to the buffer by using the SPI serial interface.
err_t lr6_receive_data ( lr6_t *ctx, uint8_t *receive_data, uint16_t buff_len, uint8_t *rx_len );
lr6_set_lr_config
This function performs the desired LoRa configuration by using the SPI serial interface.
err_t lr6_set_lr_config ( lr6_t *ctx, lr6_lora_cfg_t lora_cfg );
This example demonstrates the use of LR 6 Click board by processing the incoming data and displaying them on the USB UART.
The demo application is composed of two sections :
Initialization of SPI module and log UART. After driver initialization, the app executes a default configuration.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
lr6_cfg_t lr6_cfg; /**< Click config object. */
/**
* 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.
lr6_cfg_setup( &lr6_cfg );
LR6_MAP_MIKROBUS( lr6_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == lr6_init( &lr6, &lr6_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( LR6_ERROR == lr6_default_cfg ( &lr6 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
log_printf( &logger, " --------------------\r\n" );
}
The demo application is an echo example that sends a demo LoRa packet string and receives and processes all incoming data. Results are being sent to the UART Terminal, where you can track their changes.
void application_task ( void )
{
uint8_t rx_data[ 255 ] = { 0 };
if ( LR6_OK == lr6_send_data( &lr6, LR6_DEMO_TEXT, strlen( LR6_DEMO_TEXT ), LR6_TX_MODE_SYNC ) )
{
log_info( &logger, " Send - success" );
uint8_t rx_len = 0;
do
{
if ( LR6_OK == lr6_receive_data( &lr6, rx_data, strlen( LR6_DEMO_TEXT ), &rx_len ) )
{
if ( rx_len > 0 )
{
log_info( &logger, " Receive - success" );
log_printf( &logger, " > Receive: " );
for ( uint8_t cnt = 0; cnt < strlen( LR6_DEMO_TEXT ); cnt++ )
{
log_printf( &logger, "%c", rx_data[ cnt ] );
}
int8_t rssi, snr;
if ( LR6_OK == lr6_get_packet_status( &lr6, &rssi, &snr ) )
{
log_printf( &logger, " Rssi Pkt: %d dBm\r\n", ( int16_t ) rssi );
log_printf( &logger, " Snr Pkt : %d dB\r\n", ( int16_t ) snr );
log_printf( &logger, " --------------------\r\n" );
break;
}
}
}
}
while ( rx_len == 0 );
}
else
{
log_info( &logger, "Send - fail" );
}
Delay_ms ( 1000 );
}
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:
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.
Unique ID click carries DS2401, an enhanced silicon serial number IC. The chip uses 1-wire communications for interfacing with the target board microcontroller.
[Learn More]UVB Click is based on GUVB-C31SM ultraviolet sensor from GenUV. UVB Click supports integrated functions of ultraviolet light sensors such that can be easily configured and used in user applications.
[Learn More]Buck 15 Click is a compact add-on board for precision voltage regulation across various applications. This board features the TPS62903, a synchronous step-down DC/DC converter from Texas Instruments. It is known for its adaptability, rapid transient response, and high output voltage accuracy of ±1.5% across all operating temperatures. Featuring the innovative DCS-control topology, it supports a wide input voltage range of 3V to 17V, an adjustable output voltage from 0.4V to 5V, and currents up to 3A. This Click board™ can be used in a variety of automotive applications, such as the ADAS, body electronics and lighting, infotainment and cluster, hybrid, electric, and powertrain systems, any application with a 12V input voltage or a 1-4 cell lithium battery pack, and more.
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