ldc1101

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LDC 1101 Click

LDC 1101 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : Nenad Filipovic
• Date : nov 2019.
• Type : SPI type

Software Support

Example Description

Example demonstrates measurement of inductance change depending on the linear motion of the metal object. Induction of the linear metal position depends on the type of metal and the configuration.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Ldc1101

Example Key Functions

• ldc1101_cfg_setup Config Object Initialization function.

void ldc1101_cfg_setup ( ldc1101_cfg_t *cfg );

• ldc1101_init Initialization function.

err_t ldc1101_init ( ldc1101_t *ctx, ldc1101_cfg_t *cfg );

• ldc1101_default_cfg Click Default Configuration function.

void ldc1101_default_cfg ( ldc1101_t *ctx );

• ldc1101_get_rp_data Functions for reads RP data.

uint16_t ldc1101_get_rp_data ( ldc1101_t *ctx );

• ldc1101_get_l_data Functions for reads L data.

uint16_t ldc1101_get_l_data ( ldc1101_t *ctx );

• ldc1101_get_interrupt Functions for get interrupt pin status.

uint8_t ldc1101_get_interrupt ( ldc1101_t *ctx );

Application Init

Initializes I2C module and sets CS pin as OUTPUT and PWM and INT pin sa INPUT. Driver intialization, standard configurations and start measurement.

void application_init ( void )
{
    log_cfg_t log_cfg;
    ldc1101_cfg_t cfg;

    /** 
     * 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.

    ldc1101_cfg_setup( &cfg );
    LDC1101_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    ldc1101_init( &ldc1101, &cfg );

    log_printf( &logger, "     LDC1101 Click\r\n" );
    log_printf( &logger, "------------------------\r\n" );
    
    ldc1101_default_cfg ( &ldc1101 );
    Delay_ms ( 100 );
}

Application Task

Reads RP data and logs data to USBUART every 1 sec.

void application_task ( void )
{
    uint16_t rp_data;
    
    rp_data = ldc1101_get_rp_data( &ldc1101 );
    log_printf( &logger, " Inductive Linear Position : %u\r\n", rp_data );
    
    Delay_ms ( 1000 );
}

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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