SAML Touch click

SAML Touch Click is a Click board™ equipped with two capacitive touch pads and one capacitive slider.

click Product page

Click library

• Author : MikroE Team
• Date : Apr 2020.
• Type : UART GPS/GNSS type

Software Support

We provide a library for the SamlTouch 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 SamlTouch Click driver.

Standard key functions :

• Config Object Initialization function.

  void samltouch_cfg_setup ( samltouch_cfg_t *cfg );

• Initialization function.

  SAMLTOUCH_RETVAL samltouch_init ( samltouch_t ctx, samltouch_cfg_t cfg );

Example key functions :

• Generic write function.

  void samltouch_generic_write ( samltouch_t ctx, char data_buf, uint16_t len );

• Generic read function.

  uint16_t samltouch_generic_read ( samltouch_t ctx, char data_buf, uint16_t max_len );

• Generic parser function.

  void samltouch_parser ( char data_in, samltouch_state_t state );

Examples Description

This example reads and processes data from SAML Touch clicks.

The demo application is composed of two sections :

Application Init

Initializes driver.

void application_init ( void )
{
    log_cfg_t log_cfg;
    samltouch_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.

    samltouch_cfg_setup( &cfg );
    SAMLTOUCH_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    samltouch_init( &samltouch, &cfg );

    Delay_ms ( 500 );
}

Application Task

Reads the received data and parses it.

void application_task ( void )
{
    parser_application( );
} 

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:

• MikroSDK.Board
• MikroSDK.Log
• Click.SamlTouch

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.