speedradar  2.1.0.0
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Speed Radar click

Speed Radar Click is a compact add-on board that comes with a radar motion detector. This board features the K-LD2, a radar transceiver from RFbeam. It is a 24GHz radar with a detection distance for humans of up to 15m and cars of up to 30m. Its digital structure makes it easy to use in an MCU-based application or as a standalone device where movement detection or even a speed measurement is required.

click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Jul 2023.
  • Type : UART type

Software Support

We provide a library for the Speed Radar 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 Speed Radar Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of Speed Radar click board by processing the incoming data and displaying them on the USB UART.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the click default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
speedradar_cfg_t speedradar_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
speedradar_cfg_setup( &speedradar_cfg );
SPEEDRADAR_MAP_MIKROBUS( speedradar_cfg, MIKROBUS_1 );
if ( UART_ERROR == speedradar_init( &speedradar, &speedradar_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( SPEEDRADAR_ERROR == speedradar_default_cfg ( &speedradar ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
speedradar_process( &speedradar );
speedradar_clear_app_buf( );
Delay_ms ( 100 );
log_info( &logger, " Application Task " );
log_printf( &logger, " ---------------------- \r\n" );
Delay_ms ( 100 );
}

Application Task

The demo application sends a command that returns and displays the speed [km/h] and magnitude [dB] of the dominant movement for the forward and backward planes of the spectrum, measured frontal to the sensor. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{
Delay_ms ( 50 );
speedradar_process( &speedradar );
if ( app_buf_len >= PROCESS_C00_RSP_LEN )
{
speedradar_adv_det_display( );
speedradar_clear_app_buf( );
Delay_ms ( 100 );
}
}

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.SpeedRadar

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.


speedradar_get_direction
uint8_t speedradar_get_direction(speedradar_t *ctx)
Speed Radar get direction function.
speedradar_cfg_setup
void speedradar_cfg_setup(speedradar_cfg_t *cfg)
Speed Radar configuration object setup function.
speedradar_t
Speed Radar Click context object.
Definition: speedradar.h:302
speedradar_default_cfg
err_t speedradar_default_cfg(speedradar_t *ctx)
Speed Radar default configuration function.
SPEEDRADAR_MAP_MIKROBUS
#define SPEEDRADAR_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: speedradar.h:288
speedradar_send_command
err_t speedradar_send_command(speedradar_t *ctx, uint8_t *cmd)
Speed Radar send command function.
speedradar_init
err_t speedradar_init(speedradar_t *ctx, speedradar_cfg_t *cfg)
Speed Radar initialization function.
SPEEDRADAR_ERROR
@ SPEEDRADAR_ERROR
Definition: speedradar.h:346
application_task
void application_task(void)
Definition: main.c:118
speedradar_cfg_t
Speed Radar Click configuration object.
Definition: speedradar.h:321
speedradar_get_detection
uint8_t speedradar_get_detection(speedradar_t *ctx)
Speed Radar get detection function.
PROCESS_C00_RSP_LEN
#define PROCESS_C00_RSP_LEN
Definition: main.c:35
application_init
void application_init(void)
Definition: main.c:75
SPEEDRADAR_CMD_GET_DETECTION_STR
#define SPEEDRADAR_CMD_GET_DETECTION_STR
Speed Radar class C variable length complex read parameters.
Definition: speedradar.h:183